Load Specifications
Load data in caliber .300 Norma Mag. with .308 | 160gr | Peregrine Bushmaster (VRG-3) Lever bullet and 85 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Norma MRP, Vihtavuori N560 and ADI AR 2213.
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.
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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 2700 | <<locked>> | 82% | 56,826 psi | 89% | 3048 fps | 99.1% |
| Accurate 3100 | <<locked>> | 98% | 56,318 psi | 88% | 3097 fps | 99.9% |
| Accurate 4064 | <<locked>> | 82% | 56,130 psi | 88% | 3022 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 54,056 psi | 85% | 3084 fps | 100% |
| Accurate High Country | <<locked>> | 94% | 53,911 psi | 84% | 3182 fps | 97.4% |
| Accurate MAGPRO | <<locked>> | 96% | 54,955 psi | 86% | 3182 fps | 96.3% |
| ADI AR 2208 | <<locked>> | 84% | 56,115 psi | 88% | 3061 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 55,303 psi | 87% | 3136 fps | 98.4% |
| ADI AR 2213 | <<locked>> | 98% | 56,840 psi | 89% | 3196 fps | 97.7% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 38,957 psi | 61% | 2877 fps | 96.4% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 55,579 psi | 87% | 3136 fps | 98.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 57,246 psi | 90% | 3084 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 57,217 psi | 90% | 3104 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 55,187 psi | 86% | 3150 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 56,449 psi | 88% | 3169 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 54,868 psi | 86% | 3127 fps | 98.4% |
| Alliant Reloder-22 | <<locked>> | 98% | 56,260 psi | 88% | 3189 fps | 98.7% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 57,072 psi | 89% | 3166 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 49,197 psi | 77% | 3094 fps | 99.8% |
| Alliant Reloder-26 | <<locked>> | 94% | 53,476 psi | 84% | 3192 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 55,172 psi | 86% | 3166 fps | 98.5% |
| Bofors RP3 | <<locked>> | 82% | 54,404 psi | 85% | 3045 fps | 100% |
| Bofors RP5 | <<locked>> | 98% | 56,260 psi | 88% | 3189 fps | 98.7% |
| Bofors RP7 | <<locked>> | 88% | 57,406 psi | 90% | 3094 fps | 99.3% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 48,733 psi | 76% | 3038 fps | 96.8% |
| Hodgdon H380 | <<locked>> | 82% | 54,723 psi | 86% | 3064 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 56,275 psi | 88% | 3143 fps | 99.5% |
| Hodgdon H4350 | <<locked>> | 86% | 55,724 psi | 87% | 3100 fps | 98.7% |
| Hodgdon H4831 | <<locked>> | 96% | 56,956 psi | 89% | 3136 fps | 97.1% |
| Hodgdon H4831 SC | <<locked>> | 96% | 55,637 psi | 87% | 3114 fps | 96.8% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 55,506 psi | 87% | 3071 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 48,254 psi | 76% | 3143 fps | 98.1% |
| Hodgdon Superformance | <<locked>> | 88% | 57,043 psi | 89% | 3182 fps | 99.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,666 psi | 57% | 1959 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 55,477 psi | 87% | 3041 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 55,201 psi | 87% | 3071 fps | 99.1% |
| IMR 4451 Enduron | <<locked>> | 86% | 55,419 psi | 87% | 3061 fps | 99.4% |
| IMR 4831 | <<locked>> | 90% | 54,563 psi | 86% | 3077 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 54,476 psi | 85% | 3061 fps | 96.8% |
| IMR 7828 SSC | <<locked>> | 98% | 54,215 psi | 85% | 3163 fps | 97.3% |
| Lovex S062 | <<locked>> | 82% | 55,811 psi | 87% | 3031 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 55,651 psi | 87% | 3058 fps | 99.9% |
| Lovex S070 | <<locked>> | 90% | 57,290 psi | 90% | 3107 fps | 99.7% |
| Lovex S071ᴾ | <<locked>> | 100% | 49,777 psi | 78% | 2989 fps | 99.3% |
| Norma 203B | <<locked>> | 82% | 56,521 psi | 89% | 3091 fps | 100% |
| Norma 204 | <<locked>> | 90% | 56,173 psi | 88% | 3127 fps | 98.4% |
| Norma MRP | <<locked>> | 96% | 56,144 psi | 88% | 3215 fps | 99.6% |
| Norma URP | <<locked>> | 90% | 56,492 psi | 89% | 3127 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 55,027 psi | 86% | 3189 fps | 97.9% |
| Ramshot Hunter | <<locked>> | 90% | 55,361 psi | 87% | 3127 fps | 99.8% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 53,098 psi | 83% | 3117 fps | 98.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,246 psi | 58% | 2001 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 54,520 psi | 85% | 3048 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 55,956 psi | 88% | 3159 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 54,244 psi | 85% | 3107 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 56,623 psi | 89% | 3202 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 48,646 psi | 76% | 3143 fps | 99.1% |
| Rottweil R 902 | <<locked>> | 82% | 57,435 psi | 90% | 3041 fps | 100% |
| Rottweil R 903 | <<locked>> | 84% | 54,665 psi | 86% | 3041 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 56,782 psi | 89% | 3107 fps | 97.7% |
| Rottweil R 905 | <<locked>> | 94% | 53,983 psi | 85% | 3110 fps | 98.4% |
| Rottweil R 907 | <<locked>> | 88% | 57,406 psi | 90% | 3094 fps | 99.3% |
| Shooters World Long Rifle | <<locked>> | 88% | 55,651 psi | 87% | 3058 fps | 99.9% |
| Shooters World Precision | <<locked>> | 82% | 55,811 psi | 87% | 3031 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 57,290 psi | 90% | 3107 fps | 99.7% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 56,507 psi | 89% | 3107 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 55,288 psi | 87% | 2920 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 55,317 psi | 87% | 3012 fps | 99.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 57,435 psi | 90% | 3169 fps | 98.9% |
| Somchem S355 | <<locked>> | 84% | 54,578 psi | 86% | 3038 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 54,911 psi | 86% | 3038 fps | 96.7% |
| Somchem S365 | <<locked>> | 92% | 56,579 psi | 89% | 3133 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 54,462 psi | 85% | 3081 fps | 99% |
| Vihtavuori N150 | <<locked>> | 86% | 55,840 psi | 88% | 3012 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 54,853 psi | 86% | 3064 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 54,215 psi | 85% | 3061 fps | 98.7% |
| Vihtavuori N540 | <<locked>> | 82% | 56,579 psi | 89% | 3009 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 57,696 psi | 90% | 3127 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 55,651 psi | 87% | 3140 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 56,173 psi | 88% | 3209 fps | 97.3% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 51,576 psi | 81% | 3104 fps | 96.5% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 54,607 psi | 86% | 3028 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 56,478 psi | 89% | 3146 fps | 99.5% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 54,027 psi | 85% | 3245 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 54,708 psi | 86% | 3074 fps | 98.3% |
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 2700 | <<locked>> | 80% | 52,982 psi | 83% | 2982 fps | 98.6% |
| Accurate 3100 | <<locked>> | 84% | 34,432 psi | 54% | 2664 fps | 95.6% |
| Accurate 4064 | <<locked>> | 80% | 52,446 psi | 82% | 2966 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 40,785 psi | 64% | 2835 fps | 98.9% |
| Accurate High Country | <<locked>> | 90% | 46,775 psi | 73% | 3045 fps | 95.7% |
| Accurate MAGPRO | <<locked>> | 94% | 51,213 psi | 80% | 3114 fps | 95.4% |
| ADI AR 2208 | <<locked>> | 80% | 49,472 psi | 78% | 2949 fps | 100% |
| ADI AR 2209 | <<locked>> | 86% | 42,119 psi | 66% | 2877 fps | 95.3% |
| ADI AR 2213 | 81.6 gr | 92% | 46,195 psi | 72% | 2995 fps | 95.1% |
| ADI AR 2225 | <<locked>> | 98% | 36,419 psi | 57% | 2808 fps | 95.1% |
| Alliant Power Pro Varmint | <<locked>> | 86% | 42,395 psi | 66% | 2877 fps | 95.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 50,256 psi | 79% | 2972 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 53,737 psi | 84% | 3051 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 39,392 psi | 62% | 2844 fps | 99% |
| Alliant Reloder-17 | <<locked>> | 80% | 45,411 psi | 71% | 2982 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 41,945 psi | 66% | 2871 fps | 95.3% |
| Alliant Reloder-22 | <<locked>> | 90% | 42,670 psi | 67% | 2927 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 80% | 28,834 psi | 45% | 2572 fps | 97% |
| Alliant Reloder-25 | <<locked>> | 88% | 33,025 psi | 52% | 2710 fps | 95.6% |
| Alliant Reloder-26 | <<locked>> | 80% | 31,169 psi | 49% | 2690 fps | 95.5% |
| Bofors RP15 | <<locked>> | 92% | 42,076 psi | 66% | 2913 fps | 95.3% |
| Bofors RP3 | <<locked>> | 80% | 50,778 psi | 80% | 2982 fps | 100% |
| Bofors RP5 | <<locked>> | 90% | 42,670 psi | 67% | 2927 fps | 95.7% |
| Bofors RP7 | <<locked>> | 80% | 44,382 psi | 70% | 2854 fps | 97.2% |
| Hodgdon H1000 | <<locked>> | 98% | 45,368 psi | 71% | 2966 fps | 95.8% |
| Hodgdon H380 | <<locked>> | 80% | 51,111 psi | 80% | 3002 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 80% | 42,786 psi | 67% | 2887 fps | 97.3% |
| Hodgdon H4350 | <<locked>> | 80% | 45,556 psi | 71% | 2910 fps | 96.7% |
| Hodgdon H4831 | <<locked>> | 92% | 49,501 psi | 78% | 3005 fps | 95.4% |
| Hodgdon H4831 SC | <<locked>> | 92% | 48,515 psi | 76% | 2982 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 37,028 psi | 58% | 2730 fps | 99.4% |
| Hodgdon Retumbo | <<locked>> | 96% | 42,177 psi | 66% | 2999 fps | 96.2% |
| Hodgdon Superformance | <<locked>> | 80% | 42,018 psi | 66% | 2900 fps | 96.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,238 psi | 43% | 1749 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 52,054 psi | 82% | 2982 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 39,987 psi | 63% | 2772 fps | 95.9% |
| IMR 4451 Enduron | <<locked>> | 80% | 45,803 psi | 72% | 2884 fps | 97.9% |
| IMR 4831 | <<locked>> | 80% | 39,015 psi | 61% | 2782 fps | 98.7% |
| IMR 4955 Enduron | <<locked>> | 90% | 47,892 psi | 75% | 2940 fps | 95.2% |
| IMR 7828 SSC | <<locked>> | 94% | 47,268 psi | 74% | 3028 fps | 95.5% |
| Lovex S062 | <<locked>> | 80% | 52,373 psi | 82% | 2979 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 43,149 psi | 68% | 2828 fps | 98.5% |
| Lovex S070 | <<locked>> | 80% | 41,437 psi | 65% | 2808 fps | 97.1% |
| Lovex S071 | <<locked>> | 88% | 33,475 psi | 52% | 2638 fps | 95.2% |
| Norma 203B | <<locked>> | 80% | 53,098 psi | 83% | 3035 fps | 100% |
| Norma 204 | <<locked>> | 82% | 42,598 psi | 67% | 2867 fps | 95.3% |
| Norma MRP | 78.7 gr | 86% | 38,943 psi | 61% | 2871 fps | 96% |
| Norma URP | <<locked>> | 80% | 40,393 psi | 63% | 2828 fps | 98.8% |
| Ramshot Grand | <<locked>> | 94% | 47,297 psi | 74% | 3041 fps | 96% |
| Ramshot Hunter | <<locked>> | 80% | 39,378 psi | 62% | 2815 fps | 97.2% |
| Ramshot Magnum | <<locked>> | 92% | 39,131 psi | 61% | 2835 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,818 psi | 44% | 1791 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 51,053 psi | 80% | 2986 fps | 99.3% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 48,240 psi | 76% | 3038 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 40,698 psi | 64% | 2851 fps | 98.7% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 39,262 psi | 62% | 2861 fps | 98.2% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 38,914 psi | 61% | 2910 fps | 96.2% |
| Rottweil R 902 | <<locked>> | 80% | 54,114 psi | 85% | 2992 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 47,805 psi | 75% | 2927 fps | 100% |
| Rottweil R 904 | <<locked>> | 88% | 46,659 psi | 73% | 2923 fps | 95.5% |
| Rottweil R 905 | <<locked>> | 86% | 41,162 psi | 65% | 2854 fps | 95.3% |
| Rottweil R 907 | <<locked>> | 80% | 44,382 psi | 70% | 2854 fps | 97.2% |
| Shooters World Long Rifle | <<locked>> | 80% | 43,149 psi | 68% | 2828 fps | 98.5% |
| Shooters World Precision | <<locked>> | 80% | 52,373 psi | 82% | 2979 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 41,437 psi | 65% | 2808 fps | 97.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 49,385 psi | 77% | 2989 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 48,776 psi | 76% | 2825 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 42,264 psi | 66% | 2769 fps | 97.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 40,814 psi | 64% | 2848 fps | 95.1% |
| Somchem S355 | <<locked>> | 80% | 47,877 psi | 75% | 2923 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 51,227 psi | 80% | 2976 fps | 95.8% |
| Somchem S365 | <<locked>> | 80% | 37,043 psi | 58% | 2779 fps | 99.9% |
| Somchem S385 | <<locked>> | 84% | 38,972 psi | 61% | 2772 fps | 95.5% |
| Vihtavuori N150 | <<locked>> | 80% | 45,861 psi | 72% | 2848 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 41,901 psi | 66% | 2828 fps | 99% |
| Vihtavuori N165 | <<locked>> | 90% | 41,176 psi | 65% | 2812 fps | 95.8% |
| Vihtavuori N540 | <<locked>> | 80% | 53,040 psi | 83% | 2956 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 41,263 psi | 65% | 2828 fps | 98.8% |
| Vihtavuori N555 | <<locked>> | 80% | 32,213 psi | 50% | 2654 fps | 97.1% |
| Vihtavuori N560 | 84.2 gr | 92% | 48,646 psi | 76% | 3068 fps | 95.4% |
| Vihtavuori N565 | <<locked>> | 98% | 48,095 psi | 75% | 3038 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 41,002 psi | 64% | 2792 fps | 99.9% |
| Winchester 760 | <<locked>> | 80% | 42,960 psi | 67% | 2890 fps | 97.3% |
| Winchester StaBALL HD | <<locked>> | 80% | 25,498 psi | 40% | 2539 fps | 95.7% |
| Winchester Supreme 780 | <<locked>> | 88% | 41,234 psi | 65% | 2822 fps | 95.1% |
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 85 powders for .300 Norma Mag. loaded with the .308 | 160gr | Peregrine Bushmaster (VRG-3) Lever. Winchester StaBALL HD delivers the highest muzzle velocity at 3,245 fps; across all powders the maximum-charge window runs from 1,959 fps to 3,245 fps. ADI AR 2225 gives the best case fill at 100 %, and 85 of the 85 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 160.0 gr projectile in 0.308" calls for a 1:13.5 twist; slower twists will usually not stabilise this weight. ADI AR 2225, Alliant Reloder-23, Alliant Reloder-25 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. Norma MRP, Vihtavuori N560, ADI AR 2213 rank at the top here: for .300 Norma Mag. with the .308 | 160gr | Peregrine Bushmaster (VRG-3) Lever 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.