Load Specifications
Bullet Manufacturer:Peregrine
Bullet Weight:166 gr
Bullet Diameter:0.308"
Bullet Length:<<locked>>
Caliber:.300 Weath. Mag. load data
Case Length (l3):2.824"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:98.9 Grains of Water
Primer Size:Large Rifle Magnum (LRM)
Barrel Length:24"
Max. allowed Pressure:63,817 psi
Recommended Twist Rate:1:10.5
Load data in caliber .300 Weath. Mag. with .308 | 166gr | Peregrine Glider (Glider Tactical) bullet and 192 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Alliant Reloder-26 and Alliant Reloder-17.
Important Notice: DO NOT go below Minimum Charge or above Maximum Charge. Since we have no control over the equipment and components used, any responsibility and liability for the results achieved is rejected.
Only powders/loads that match the current filter criteria are displayed: max pressure of a load ≤ 90% of max. standardized pressure, fill rate ≥ 80% and propellant combustion ≥ 95%. Use the sliders above the tables to adjust these thresholds.
Charge: Powder weight in grains. Start with the minimum load and work up carefully.
FR (Fill Rate): Case fill as a percentage. Values above 100% mean compressed loads.
MaxP / %: Maximum chamber pressure in bar and as a percentage of the standardized maximum for this caliber.
V(0): Muzzle velocity in feet per second (fps) at the standardized barrel length.
z (Powder Burn): Estimated propellant combustion percentage at bullet exit.
A valid access license is required to use the Personalized Load Calculator.
You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 82% | 54,810 psi | 86% | 2867 fps | 100% |
| Accurate 2495 | <<locked>> | 82% | 55,288 psi | 87% | 2874 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 56,652 psi | 89% | 2946 fps | 98.8% |
| Accurate 2700 | <<locked>> | 84% | 57,000 psi | 89% | 2956 fps | 98.9% |
| Accurate 3100ᴾ | <<locked>> | 100% | 54,708 psi | 86% | 2989 fps | 99.6% |
| Accurate 3100ᴾ | <<locked>> | 100% | 55,027 psi | 86% | 2995 fps | 99.7% |
| Accurate 4064 | <<locked>> | 84% | 55,477 psi | 87% | 2927 fps | 100% |
| Accurate 4064 | <<locked>> | 84% | 55,724 psi | 87% | 2930 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 56,666 psi | 89% | 3041 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 57,334 psi | 90% | 3051 fps | 100% |
| Accurate High Country | <<locked>> | 98% | 56,594 psi | 89% | 3146 fps | 97.6% |
| Accurate MAGPROᴾ | <<locked>> | 100% | 57,174 psi | 90% | 3136 fps | 96.3% |
| ADI AR 2208 | <<locked>> | 86% | 55,941 psi | 88% | 2966 fps | 100% |
| ADI AR 2208 | <<locked>> | 86% | 56,333 psi | 88% | 2972 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 54,288 psi | 85% | 3031 fps | 97.9% |
| ADI AR 2209 | <<locked>> | 96% | 54,621 psi | 86% | 3038 fps | 98% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 55,593 psi | 87% | 3081 fps | 97% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 56,101 psi | 88% | 3091 fps | 97.1% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 55,288 psi | 87% | 3087 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 55,985 psi | 88% | 3100 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 54,375 psi | 85% | 3025 fps | 97.9% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 54,911 psi | 86% | 3035 fps | 98.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 56,782 psi | 89% | 2989 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 57,188 psi | 90% | 2995 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 56,927 psi | 89% | 3012 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 57,290 psi | 90% | 3018 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 53,954 psi | 85% | 3045 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 54,578 psi | 86% | 3054 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 55,361 psi | 87% | 3071 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 55,767 psi | 87% | 3077 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 57,290 psi | 90% | 3074 fps | 98.4% |
| Alliant Reloder-19 | <<locked>> | 98% | 57,624 psi | 90% | 3084 fps | 98.5% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 54,520 psi | 85% | 3074 fps | 98.1% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 55,071 psi | 86% | 3084 fps | 98.3% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 51,387 psi | 81% | 3002 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 51,967 psi | 81% | 3012 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 44,585 psi | 70% | 2923 fps | 99% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 45,049 psi | 71% | 2933 fps | 99.1% |
| Alliant Reloder-26 | <<locked>> | 98% | 55,564 psi | 87% | 3150 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 98% | 56,144 psi | 88% | 3159 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 49,893 psi | 78% | 2992 fps | 97.1% |
| Bofors RP15ᴾ | <<locked>> | 100% | 50,415 psi | 79% | 3002 fps | 97.3% |
| Bofors RP3 | <<locked>> | 86% | 57,522 psi | 90% | 3002 fps | 100% |
| Bofors RP3 | <<locked>> | 84% | 54,186 psi | 85% | 2956 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 54,520 psi | 85% | 3074 fps | 98.1% |
| Bofors RP5ᴾ | <<locked>> | 100% | 55,071 psi | 86% | 3084 fps | 98.3% |
| Bofors RP7 | <<locked>> | 90% | 56,840 psi | 89% | 2989 fps | 99% |
| Bofors RP7 | <<locked>> | 90% | 57,188 psi | 90% | 2995 fps | 99.1% |
| Hodgdon H380 | <<locked>> | 84% | 54,172 psi | 85% | 2963 fps | 99.9% |
| Hodgdon H380 | <<locked>> | 84% | 54,563 psi | 86% | 2972 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 90% | 55,361 psi | 87% | 3038 fps | 99.2% |
| Hodgdon H414 | <<locked>> | 90% | 55,695 psi | 87% | 3048 fps | 99.3% |
| Hodgdon H4350 | <<locked>> | 88% | 55,013 psi | 86% | 2999 fps | 98.3% |
| Hodgdon H4350 | <<locked>> | 88% | 55,361 psi | 87% | 3005 fps | 98.4% |
| Hodgdon H4831 | <<locked>> | 98% | 55,724 psi | 87% | 3022 fps | 96.3% |
| Hodgdon H4831 | <<locked>> | 98% | 56,260 psi | 88% | 3035 fps | 96.5% |
| Hodgdon H4831 SC | <<locked>> | 98% | 54,563 psi | 86% | 3005 fps | 96.1% |
| Hodgdon H4831 SC | <<locked>> | 98% | 55,042 psi | 86% | 3015 fps | 96.2% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 54,288 psi | 85% | 2966 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 54,708 psi | 86% | 2976 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 55,695 psi | 87% | 3005 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 56,115 psi | 88% | 3012 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 43,700 psi | 68% | 2949 fps | 96.1% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 44,135 psi | 69% | 2963 fps | 96.4% |
| Hodgdon Superformance | <<locked>> | 90% | 55,869 psi | 88% | 3077 fps | 99.1% |
| Hodgdon Superformance | <<locked>> | 90% | 56,405 psi | 88% | 3087 fps | 99.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,245 psi | 57% | 1867 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,274 psi | 57% | 1870 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 56,275 psi | 88% | 2969 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 56,695 psi | 89% | 2976 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 55,419 psi | 87% | 2946 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 55,622 psi | 87% | 2953 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 54,520 psi | 85% | 2930 fps | 99% |
| IMR 4166 Enduron | <<locked>> | 82% | 54,679 psi | 86% | 2933 fps | 99.1% |
| IMR 4350 | <<locked>> | 92% | 54,505 psi | 85% | 2969 fps | 98.7% |
| IMR 4350 | <<locked>> | 92% | 55,042 psi | 86% | 2979 fps | 98.8% |
| IMR 4451 Enduron | <<locked>> | 88% | 55,100 psi | 86% | 2963 fps | 99.1% |
| IMR 4451 Enduron | <<locked>> | 88% | 55,434 psi | 87% | 2969 fps | 99.1% |
| IMR 4831 | <<locked>> | 94% | 57,130 psi | 90% | 3031 fps | 100% |
| IMR 4831 | <<locked>> | 94% | 57,725 psi | 90% | 3041 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 54,708 psi | 86% | 2982 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 55,143 psi | 86% | 2989 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 57,174 psi | 90% | 3012 fps | 96.8% |
| IMR 4955 Enduron | <<locked>> | 98% | 57,638 psi | 90% | 3022 fps | 97% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 52,968 psi | 83% | 3048 fps | 96.5% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 53,476 psi | 84% | 3061 fps | 96.7% |
| Lovex S060 | <<locked>> | 82% | 56,884 psi | 89% | 2933 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 57,072 psi | 89% | 2936 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 55,405 psi | 87% | 2940 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 55,825 psi | 87% | 2946 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 55,114 psi | 86% | 2959 fps | 99.7% |
| Lovex S065 | <<locked>> | 90% | 55,506 psi | 87% | 2966 fps | 99.8% |
| Lovex S070 | <<locked>> | 92% | 56,405 psi | 88% | 3002 fps | 99.4% |
| Lovex S070 | <<locked>> | 92% | 57,014 psi | 89% | 3012 fps | 99.5% |
| Lovex S071ᴾ | <<locked>> | 100% | 45,223 psi | 71% | 2825 fps | 98.4% |
| Lovex S071ᴾ | <<locked>> | 100% | 45,527 psi | 71% | 2835 fps | 98.5% |
| Norma 201 | <<locked>> | 82% | 56,594 psi | 89% | 2949 fps | 100% |
| Norma 201 | <<locked>> | 82% | 57,014 psi | 89% | 2956 fps | 100% |
| Norma 202 | <<locked>> | 82% | 57,580 psi | 90% | 2946 fps | 100% |
| Norma 203B | <<locked>> | 84% | 56,159 psi | 88% | 2995 fps | 100% |
| Norma 203B | <<locked>> | 84% | 56,579 psi | 89% | 3002 fps | 100% |
| Norma 204 | <<locked>> | 92% | 55,376 psi | 87% | 3022 fps | 97.9% |
| Norma 204 | <<locked>> | 92% | 55,956 psi | 88% | 3035 fps | 98.1% |
| Norma MRP | <<locked>> | 98% | 54,114 psi | 85% | 3100 fps | 99.1% |
| Norma MRP | <<locked>> | 98% | 54,665 psi | 86% | 3110 fps | 99.2% |
| Norma URP | <<locked>> | 92% | 55,376 psi | 87% | 3022 fps | 100% |
| Norma URP | <<locked>> | 92% | 55,956 psi | 88% | 3035 fps | 100% |
| Ramshot Big Game | <<locked>> | 84% | 57,203 psi | 90% | 3022 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 53,940 psi | 85% | 2976 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 53,388 psi | 84% | 3068 fps | 97% |
| Ramshot Grandᴾ | <<locked>> | 100% | 53,882 psi | 84% | 3077 fps | 97.2% |
| Ramshot Hunter | <<locked>> | 92% | 54,331 psi | 85% | 3025 fps | 99.6% |
| Ramshot Hunter | <<locked>> | 92% | 54,882 psi | 86% | 3035 fps | 99.6% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 47,514 psi | 74% | 2930 fps | 97.4% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 48,167 psi | 75% | 2943 fps | 97.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,043 psi | 58% | 1916 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,072 psi | 58% | 1919 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 54,331 psi | 85% | 2949 fps | 99.4% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 54,694 psi | 86% | 2959 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 54,723 psi | 86% | 3061 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 55,129 psi | 86% | 3068 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 56,811 psi | 89% | 3064 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 57,377 psi | 90% | 3074 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 55,434 psi | 87% | 3097 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 55,782 psi | 87% | 3100 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 43,729 psi | 69% | 2943 fps | 97.4% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 44,092 psi | 69% | 2953 fps | 97.6% |
| Rottweil R 902 | <<locked>> | 84% | 57,261 psi | 90% | 2949 fps | 100% |
| Rottweil R 902 | <<locked>> | 84% | 57,696 psi | 90% | 2956 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 57,609 psi | 90% | 2999 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 54,273 psi | 85% | 2949 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 55,898 psi | 88% | 2999 fps | 97.1% |
| Rottweil R 904 | <<locked>> | 96% | 56,405 psi | 88% | 3009 fps | 97.3% |
| Rottweil R 905 | <<locked>> | 98% | 56,521 psi | 89% | 3061 fps | 98.4% |
| Rottweil R 905 | <<locked>> | 98% | 56,840 psi | 89% | 3068 fps | 98.5% |
| Rottweil R 907 | <<locked>> | 90% | 56,840 psi | 89% | 2989 fps | 99% |
| Rottweil R 907 | <<locked>> | 90% | 57,188 psi | 90% | 2995 fps | 99.1% |
| Shooters World Long Rifle | <<locked>> | 90% | 55,114 psi | 86% | 2959 fps | 99.7% |
| Shooters World Long Rifle | <<locked>> | 90% | 55,506 psi | 87% | 2966 fps | 99.8% |
| Shooters World Precision | <<locked>> | 84% | 55,405 psi | 87% | 2940 fps | 100% |
| Shooters World Precision | <<locked>> | 84% | 55,825 psi | 87% | 2946 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 56,405 psi | 88% | 3002 fps | 99.4% |
| Shooters World SW4350 | <<locked>> | 92% | 57,014 psi | 89% | 3012 fps | 99.5% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 55,811 psi | 87% | 3009 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 56,173 psi | 88% | 3015 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 56,579 psi | 89% | 2979 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 56,971 psi | 89% | 2989 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 57,479 psi | 90% | 2877 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 55,143 psi | 86% | 2835 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 55,521 psi | 87% | 2841 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 54,824 psi | 86% | 2910 fps | 99.1% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 55,172 psi | 86% | 2917 fps | 99.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 56,028 psi | 88% | 3054 fps | 98.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 56,362 psi | 88% | 3064 fps | 98.4% |
| Somchem S335 | <<locked>> | 82% | 57,087 psi | 89% | 2871 fps | 100% |
| Somchem S335 | <<locked>> | 82% | 57,522 psi | 90% | 2881 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 57,609 psi | 90% | 2995 fps | 100% |
| Somchem S355 | <<locked>> | 86% | 54,375 psi | 85% | 2949 fps | 100% |
| Somchem S361 | <<locked>> | 96% | 57,740 psi | 90% | 2992 fps | 96.7% |
| Somchem S361 | <<locked>> | 94% | 54,404 psi | 85% | 2943 fps | 96.1% |
| Somchem S365 | <<locked>> | 94% | 54,882 psi | 86% | 3025 fps | 100% |
| Somchem S365 | <<locked>> | 94% | 55,492 psi | 87% | 3035 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 57,000 psi | 89% | 3031 fps | 99% |
| Somchem S385 | <<locked>> | 98% | 57,566 psi | 90% | 3045 fps | 99.1% |
| Vihtavuori N135 | <<locked>> | 82% | 54,288 psi | 85% | 2858 fps | 100% |
| Vihtavuori N135 | <<locked>> | 82% | 54,781 psi | 86% | 2867 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 54,563 psi | 86% | 2874 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 54,998 psi | 86% | 2881 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 55,347 psi | 87% | 2917 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 55,738 psi | 87% | 2923 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 57,595 psi | 90% | 3018 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 54,476 psi | 85% | 2972 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 52,852 psi | 83% | 2949 fps | 98.2% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 53,142 psi | 83% | 2956 fps | 98.3% |
| Vihtavuori N540 | <<locked>> | 84% | 56,217 psi | 88% | 2920 fps | 100% |
| Vihtavuori N540 | <<locked>> | 84% | 56,594 psi | 89% | 2923 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 56,652 psi | 89% | 3022 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 57,232 psi | 90% | 3035 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 57,508 psi | 90% | 3084 fps | 100% |
| Vihtavuori N555 | <<locked>> | 98% | 54,288 psi | 85% | 3038 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 54,389 psi | 85% | 3087 fps | 96.4% |
| Vihtavuori N560 | <<locked>> | 98% | 54,911 psi | 86% | 3100 fps | 96.6% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 57,696 psi | 90% | 2989 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 54,070 psi | 85% | 2936 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 55,593 psi | 87% | 3041 fps | 99.2% |
| Winchester 760 | <<locked>> | 90% | 55,912 psi | 88% | 3051 fps | 99.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 46,630 psi | 73% | 3061 fps | 100% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 47,239 psi | 74% | 3071 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 56,811 psi | 89% | 2986 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 57,421 psi | 90% | 2999 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 57,653 psi | 90% | 3031 fps | 98.4% |
| Winchester Supreme 780 | <<locked>> | 98% | 53,969 psi | 85% | 2976 fps | 97.8% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 80% | 51,401 psi | 81% | 2818 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 51,663 psi | 81% | 2825 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 49,545 psi | 78% | 2828 fps | 97.7% |
| Accurate 2700 | <<locked>> | 80% | 49,908 psi | 78% | 2838 fps | 97.8% |
| Accurate 3100 | <<locked>> | 88% | 35,868 psi | 56% | 2628 fps | 95.8% |
| Accurate 3100 | <<locked>> | 86% | 33,721 psi | 53% | 2575 fps | 95% |
| Accurate 4064 | <<locked>> | 80% | 48,747 psi | 76% | 2825 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 49,008 psi | 77% | 2831 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 37,086 psi | 58% | 2674 fps | 97.9% |
| Accurate 4350 | <<locked>> | 80% | 37,463 psi | 59% | 2684 fps | 98% |
| Accurate High Country | <<locked>> | 92% | 45,788 psi | 72% | 2946 fps | 95% |
| Accurate MAGPRO | <<locked>> | 98% | 53,301 psi | 84% | 3071 fps | 95.5% |
| ADI AR 2208 | <<locked>> | 80% | 46,340 psi | 73% | 2802 fps | 99.7% |
| ADI AR 2208 | <<locked>> | 80% | 46,543 psi | 73% | 2808 fps | 99.8% |
| ADI AR 2209 | <<locked>> | 90% | 44,454 psi | 70% | 2844 fps | 95.5% |
| ADI AR 2209 | <<locked>> | 90% | 44,759 psi | 70% | 2851 fps | 95.7% |
| ADI AR 2213 | <<locked>> | 96% | 48,443 psi | 76% | 2949 fps | 95.1% |
| ADI AR 2213 | <<locked>> | 96% | 48,950 psi | 77% | 2959 fps | 95.3% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 51,590 psi | 81% | 3028 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 52,011 psi | 82% | 3035 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 44,411 psi | 70% | 2841 fps | 95.6% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 44,947 psi | 70% | 2851 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 46,717 psi | 73% | 2825 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 47,166 psi | 74% | 2835 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 49,893 psi | 78% | 2897 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 50,328 psi | 79% | 2907 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 36,405 psi | 57% | 2690 fps | 98% |
| Alliant Reloder-16 | <<locked>> | 80% | 36,622 psi | 57% | 2700 fps | 98.1% |
| Alliant Reloder-17 | 66.8 gr | 80% | 41,365 psi | 65% | 2822 fps | 99.9% |
| Alliant Reloder-17 | 66.8 gr | 80% | 41,727 psi | 65% | 2831 fps | 99.9% |
| Alliant Reloder-19 | <<locked>> | 90% | 43,903 psi | 69% | 2831 fps | 95.5% |
| Alliant Reloder-19 | <<locked>> | 90% | 44,440 psi | 70% | 2844 fps | 95.7% |
| Alliant Reloder-22 | <<locked>> | 94% | 44,353 psi | 70% | 2884 fps | 95.8% |
| Alliant Reloder-22 | <<locked>> | 92% | 41,887 psi | 66% | 2831 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 80% | 26,455 psi | 41% | 2425 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 80% | 26,614 psi | 42% | 2431 fps | 95.4% |
| Alliant Reloder-25 | <<locked>> | 92% | 34,272 psi | 54% | 2671 fps | 95.7% |
| Alliant Reloder-25 | <<locked>> | 92% | 34,664 psi | 54% | 2684 fps | 96% |
| Alliant Reloder-26 | 71.9 gr | 84% | 32,692 psi | 51% | 2667 fps | 95.9% |
| Alliant Reloder-26 | 71.9 gr | 84% | 32,953 psi | 52% | 2677 fps | 96.1% |
| Bofors RP15 | <<locked>> | 96% | 43,685 psi | 68% | 2871 fps | 95.4% |
| Bofors RP15 | <<locked>> | 96% | 44,019 psi | 69% | 2877 fps | 95.6% |
| Bofors RP3 | <<locked>> | 80% | 46,949 psi | 74% | 2835 fps | 100% |
| Bofors RP3 | <<locked>> | 80% | 47,369 psi | 74% | 2841 fps | 100% |
| Bofors RP5 | <<locked>> | 94% | 44,353 psi | 70% | 2884 fps | 95.8% |
| Bofors RP5 | <<locked>> | 92% | 41,887 psi | 66% | 2831 fps | 95.1% |
| Bofors RP7 | <<locked>> | 80% | 41,365 psi | 65% | 2703 fps | 95.9% |
| Bofors RP7 | <<locked>> | 80% | 41,553 psi | 65% | 2707 fps | 96% |
| Hodgdon H380 | <<locked>> | 80% | 47,427 psi | 74% | 2848 fps | 99.4% |
| Hodgdon H380 | <<locked>> | 80% | 47,790 psi | 75% | 2854 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 80% | 39,349 psi | 62% | 2730 fps | 95.9% |
| Hodgdon H414 | <<locked>> | 80% | 39,726 psi | 62% | 2740 fps | 96% |
| Hodgdon H4350 | <<locked>> | 80% | 42,279 psi | 66% | 2753 fps | 95.3% |
| Hodgdon H4350 | <<locked>> | 80% | 42,656 psi | 67% | 2766 fps | 95.5% |
| Hodgdon H4831 | <<locked>> | 96% | 52,011 psi | 82% | 2959 fps | 95.5% |
| Hodgdon H4831 | <<locked>> | 96% | 52,518 psi | 82% | 2969 fps | 95.6% |
| Hodgdon H4831 SC | <<locked>> | 96% | 50,894 psi | 80% | 2940 fps | 95.2% |
| Hodgdon H4831 SC | <<locked>> | 96% | 51,416 psi | 81% | 2953 fps | 95.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 33,895 psi | 53% | 2582 fps | 98.6% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 34,098 psi | 53% | 2589 fps | 98.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 52,112 psi | 82% | 2949 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 52,330 psi | 82% | 2953 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 40,872 psi | 64% | 2881 fps | 95% |
| Hodgdon Retumbo | <<locked>> | 98% | 41,307 psi | 65% | 2894 fps | 95.2% |
| Hodgdon Superformance | <<locked>> | 80% | 38,319 psi | 60% | 2736 fps | 95% |
| Hodgdon Superformance | <<locked>> | 80% | 38,624 psi | 61% | 2746 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,064 psi | 42% | 1670 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,151 psi | 43% | 1677 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 52,721 psi | 83% | 2910 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 53,127 psi | 83% | 2920 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 48,733 psi | 76% | 2838 fps | 99.9% |
| IMR 4064 | <<locked>> | 80% | 48,965 psi | 77% | 2844 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 51,097 psi | 80% | 2871 fps | 98.6% |
| IMR 4166 Enduron | <<locked>> | 80% | 51,271 psi | 80% | 2877 fps | 98.7% |
| IMR 4350 | <<locked>> | 82% | 39,610 psi | 62% | 2684 fps | 95.3% |
| IMR 4350 | <<locked>> | 82% | 39,784 psi | 62% | 2687 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 80% | 42,902 psi | 67% | 2736 fps | 96.8% |
| IMR 4451 Enduron | <<locked>> | 80% | 43,062 psi | 67% | 2743 fps | 96.9% |
| IMR 4831 | <<locked>> | 80% | 35,723 psi | 56% | 2628 fps | 97.5% |
| IMR 4831 | <<locked>> | 80% | 36,100 psi | 57% | 2638 fps | 97.7% |
| IMR 4895 | <<locked>> | 80% | 51,227 psi | 80% | 2927 fps | 100% |
| IMR 4895 | <<locked>> | 80% | 51,634 psi | 81% | 2933 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 50,415 psi | 79% | 2897 fps | 95.3% |
| IMR 4955 Enduron | <<locked>> | 94% | 50,894 psi | 80% | 2907 fps | 95.5% |
| IMR 7828 SSC | <<locked>> | 98% | 49,443 psi | 77% | 2986 fps | 95.6% |
| IMR 7828 SSC | <<locked>> | 98% | 49,922 psi | 78% | 2995 fps | 95.8% |
| Lovex S060 | <<locked>> | 80% | 53,345 psi | 84% | 2877 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 53,751 psi | 84% | 2887 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 48,805 psi | 76% | 2831 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 49,211 psi | 77% | 2841 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 40,263 psi | 63% | 2680 fps | 97.5% |
| Lovex S065 | <<locked>> | 80% | 40,451 psi | 63% | 2687 fps | 97.6% |
| Lovex S070 | <<locked>> | 80% | 38,508 psi | 60% | 2661 fps | 95.8% |
| Lovex S070 | <<locked>> | 80% | 38,711 psi | 61% | 2664 fps | 95.9% |
| Lovex S071 | <<locked>> | 92% | 34,621 psi | 54% | 2598 fps | 95.3% |
| Lovex S071 | <<locked>> | 92% | 34,940 psi | 55% | 2608 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 53,200 psi | 83% | 2897 fps | 100% |
| Norma 201 | <<locked>> | 80% | 53,447 psi | 84% | 2900 fps | 100% |
| Norma 202 | <<locked>> | 80% | 53,925 psi | 85% | 2894 fps | 100% |
| Norma 203B | <<locked>> | 80% | 49,240 psi | 77% | 2881 fps | 100% |
| Norma 203B | <<locked>> | 80% | 49,661 psi | 78% | 2890 fps | 100% |
| Norma 204 | <<locked>> | 86% | 44,991 psi | 71% | 2831 fps | 95.6% |
| Norma 204 | <<locked>> | 86% | 45,339 psi | 71% | 2841 fps | 95.7% |
| Norma MRP | <<locked>> | 88% | 37,898 psi | 59% | 2769 fps | 95.1% |
| Norma MRP | <<locked>> | 88% | 38,189 psi | 60% | 2779 fps | 95.3% |
| Norma URP | <<locked>> | 80% | 37,188 psi | 58% | 2677 fps | 97.8% |
| Norma URP | <<locked>> | 80% | 37,391 psi | 59% | 2684 fps | 97.9% |
| Ramshot Big Game | <<locked>> | 80% | 49,922 psi | 78% | 2910 fps | 100% |
| Ramshot Big Game | <<locked>> | 80% | 50,314 psi | 79% | 2917 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 49,661 psi | 78% | 2999 fps | 96.1% |
| Ramshot Grand | <<locked>> | 96% | 46,499 psi | 73% | 2936 fps | 95.2% |
| Ramshot Hunter | <<locked>> | 80% | 35,998 psi | 56% | 2657 fps | 95.6% |
| Ramshot Hunter | <<locked>> | 80% | 36,332 psi | 57% | 2667 fps | 95.8% |
| Ramshot Magnum | <<locked>> | 96% | 40,915 psi | 64% | 2792 fps | 95.4% |
| Ramshot Magnum | <<locked>> | 96% | 41,336 psi | 65% | 2805 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,499 psi | 43% | 1709 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,601 psi | 43% | 1716 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 47,558 psi | 75% | 2831 fps | 98.5% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 47,921 psi | 75% | 2841 fps | 98.6% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 44,005 psi | 69% | 2881 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 44,411 psi | 70% | 2890 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 37,130 psi | 58% | 2697 fps | 97.6% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 37,478 psi | 59% | 2707 fps | 97.7% |
| ReloadSwiss RS 70 | 67.9 gr | 80% | 36,100 psi | 57% | 2703 fps | 96.9% |
| ReloadSwiss RS 70 | 67.9 gr | 80% | 36,405 psi | 57% | 2713 fps | 97% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 40,669 psi | 64% | 2871 fps | 96.3% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 38,174 psi | 60% | 2808 fps | 95.2% |
| Rottweil R 902 | <<locked>> | 80% | 50,618 psi | 79% | 2848 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 50,865 psi | 80% | 2851 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 44,266 psi | 69% | 2782 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 44,498 psi | 70% | 2785 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 49,081 psi | 77% | 2881 fps | 95.6% |
| Rottweil R 904 | <<locked>> | 92% | 49,429 psi | 77% | 2890 fps | 95.7% |
| Rottweil R 905 | <<locked>> | 90% | 43,033 psi | 67% | 2815 fps | 95.4% |
| Rottweil R 905 | <<locked>> | 90% | 43,352 psi | 68% | 2822 fps | 95.6% |
| Rottweil R 907 | <<locked>> | 80% | 41,365 psi | 65% | 2703 fps | 95.9% |
| Rottweil R 907 | <<locked>> | 80% | 41,553 psi | 65% | 2707 fps | 96% |
| Shooters World Long Rifle | <<locked>> | 80% | 40,263 psi | 63% | 2680 fps | 97.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 40,451 psi | 63% | 2687 fps | 97.6% |
| Shooters World Precision | <<locked>> | 80% | 48,805 psi | 76% | 2831 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 49,211 psi | 77% | 2841 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 38,508 psi | 60% | 2661 fps | 95.8% |
| Shooters World SW4350 | <<locked>> | 80% | 38,711 psi | 61% | 2664 fps | 95.9% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 45,571 psi | 71% | 2835 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 45,963 psi | 72% | 2844 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 53,055 psi | 83% | 2927 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 53,461 psi | 84% | 2933 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 53,983 psi | 85% | 2828 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 45,629 psi | 72% | 2690 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 45,832 psi | 72% | 2694 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 39,378 psi | 62% | 2625 fps | 96% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 39,537 psi | 62% | 2628 fps | 96.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 42,641 psi | 67% | 2808 fps | 95.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 42,960 psi | 67% | 2818 fps | 95.4% |
| Somchem S335 | <<locked>> | 80% | 53,766 psi | 84% | 2825 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 53,983 psi | 85% | 2831 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 44,628 psi | 70% | 2782 fps | 99.9% |
| Somchem S355 | <<locked>> | 80% | 44,817 psi | 70% | 2785 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 50,575 psi | 79% | 2874 fps | 95.1% |
| Somchem S361 | <<locked>> | 92% | 50,792 psi | 80% | 2877 fps | 95.2% |
| Somchem S365 | <<locked>> | 80% | 33,518 psi | 53% | 2628 fps | 99.4% |
| Somchem S365 | <<locked>> | 80% | 33,910 psi | 53% | 2638 fps | 99.5% |
| Somchem S385 | <<locked>> | 88% | 40,741 psi | 64% | 2736 fps | 95.6% |
| Somchem S385 | <<locked>> | 88% | 41,075 psi | 64% | 2743 fps | 95.8% |
| Vihtavuori N135 | <<locked>> | 80% | 50,923 psi | 80% | 2808 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 51,198 psi | 80% | 2815 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 51,300 psi | 80% | 2828 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 51,503 psi | 81% | 2831 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 42,656 psi | 67% | 2707 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 42,844 psi | 67% | 2713 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 38,479 psi | 60% | 2677 fps | 98.1% |
| Vihtavuori N160 | <<locked>> | 80% | 38,827 psi | 61% | 2684 fps | 98.2% |
| Vihtavuori N165 | <<locked>> | 92% | 40,161 psi | 63% | 2713 fps | 95% |
| Vihtavuori N165 | <<locked>> | 92% | 40,640 psi | 64% | 2723 fps | 95.2% |
| Vihtavuori N540 | <<locked>> | 80% | 49,429 psi | 77% | 2818 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 49,835 psi | 78% | 2825 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 37,942 psi | 59% | 2674 fps | 97.8% |
| Vihtavuori N550 | <<locked>> | 80% | 38,290 psi | 60% | 2684 fps | 97.9% |
| Vihtavuori N555 | <<locked>> | 80% | 29,080 psi | 46% | 2503 fps | 95.4% |
| Vihtavuori N555 | <<locked>> | 80% | 29,414 psi | 46% | 2510 fps | 95.6% |
| Vihtavuori N560 | <<locked>> | 96% | 50,778 psi | 80% | 3022 fps | 95.5% |
| Vihtavuori N560 | <<locked>> | 96% | 51,300 psi | 80% | 3035 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 37,811 psi | 59% | 2648 fps | 99.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 38,145 psi | 60% | 2657 fps | 99.6% |
| Winchester 760 | <<locked>> | 80% | 39,523 psi | 62% | 2733 fps | 95.9% |
| Winchester 760 | <<locked>> | 80% | 39,726 psi | 62% | 2740 fps | 96% |
| Winchester StaBALL HD | <<locked>> | 84% | 26,614 psi | 42% | 2513 fps | 96.2% |
| Winchester StaBALL HD | <<locked>> | 84% | 26,876 psi | 42% | 2523 fps | 96.4% |
| Winchester StaBALL Match | <<locked>> | 80% | 53,229 psi | 83% | 2933 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 80% | 53,621 psi | 84% | 2940 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 43,250 psi | 68% | 2782 fps | 95.3% |
| Winchester Supreme 780 | <<locked>> | 92% | 43,526 psi | 68% | 2789 fps | 95.4% |
Recommended = one of the top powders for this cartridge and bullet combination.
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 192 powders for .300 Weath. Mag. loaded with the .308 | 166gr | Peregrine Glider (Glider Tactical). Alliant Reloder-26 delivers the highest muzzle velocity at 3,159 fps; across all powders the maximum-charge window runs from 1,867 fps to 3,159 fps. Accurate 3100 gives the best case fill at 100 %, and 192 of the 192 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 166.0 gr projectile in 0.308" calls for a 1:10.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate 3100, Accurate MAGPRO reach 100 % fill or more at maximum charge, so these are compressed loads: they need a long drop tube to seat cleanly and react sensitively to the case capacity of your own brass lot. ReloadSwiss RS 70, Alliant Reloder-26, Alliant Reloder-17 rank at the top here: for .300 Weath. Mag. with the .308 | 166gr | Peregrine Glider (Glider Tactical) they combine a high case fill with complete burn and sit in the upper velocity band. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.