Load Specifications
Load data in caliber .300 Norma Mag. with .308 | 167gr | Peregrine Plainsmaster (VLR-4) bullet and 82 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Accurate MAGPRO, Alliant Reloder-26 and Winchester StaBALL HD.
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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Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 96% | 54,056 psi | 85% | 3005 fps | 99.9% |
| Accurate 4064 | <<locked>> | 82% | 57,392 psi | 90% | 2976 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 55,593 psi | 87% | 3051 fps | 100% |
| Accurate High Country | <<locked>> | 94% | 55,666 psi | 87% | 3159 fps | 98.1% |
| Accurate MAGPRO | <<locked>> | 96% | 56,782 psi | 89% | 3163 fps | 97.2% |
| ADI AR 2208 | <<locked>> | 84% | 57,435 psi | 90% | 3022 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 56,840 psi | 89% | 3107 fps | 98.9% |
| ADI AR 2213 | <<locked>> | 96% | 54,491 psi | 85% | 3104 fps | 97.7% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 40,045 psi | 63% | 2858 fps | 97.4% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 56,869 psi | 89% | 3100 fps | 99% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 54,926 psi | 86% | 2989 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 56,724 psi | 89% | 3114 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 54,099 psi | 85% | 3071 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 56,130 psi | 88% | 3091 fps | 98.9% |
| Alliant Reloder-22 | <<locked>> | 96% | 54,128 psi | 85% | 3097 fps | 98.7% |
| Alliant Reloder-23 | <<locked>> | 98% | 55,100 psi | 86% | 3077 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 50,836 psi | 80% | 3071 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 94% | 55,492 psi | 87% | 3166 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 56,710 psi | 89% | 3140 fps | 99% |
| Bofors RP3 | <<locked>> | 82% | 55,883 psi | 88% | 3005 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 46,731 psi | 73% | 2989 fps | 96.6% |
| Bofors RP5 | <<locked>> | 96% | 54,128 psi | 85% | 3097 fps | 98.7% |
| Bofors RP7 | <<locked>> | 86% | 55,042 psi | 86% | 2999 fps | 99.3% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 50,053 psi | 78% | 3015 fps | 97.6% |
| Hodgdon H380 | <<locked>> | 82% | 55,956 psi | 88% | 3025 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 57,725 psi | 90% | 3110 fps | 99.8% |
| Hodgdon H4350 | <<locked>> | 86% | 56,985 psi | 89% | 3064 fps | 99.1% |
| Hodgdon H4831 | <<locked>> | 94% | 54,592 psi | 86% | 3041 fps | 97.1% |
| Hodgdon H4831 SC | <<locked>> | 96% | 57,203 psi | 90% | 3084 fps | 97.5% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 56,985 psi | 89% | 3031 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 49,661 psi | 78% | 3123 fps | 98.8% |
| Hodgdon Superformance | <<locked>> | 86% | 54,375 psi | 85% | 3084 fps | 99.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,753 psi | 58% | 1919 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 56,782 psi | 89% | 3002 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 56,536 psi | 89% | 3038 fps | 99.5% |
| IMR 4451 Enduron | <<locked>> | 86% | 56,739 psi | 89% | 3028 fps | 99.7% |
| IMR 4831 | <<locked>> | 90% | 55,999 psi | 88% | 3041 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 55,796 psi | 87% | 3028 fps | 97.5% |
| IMR 7828 SSC | <<locked>> | 98% | 55,912 psi | 88% | 3140 fps | 98.1% |
| Lovex S062 | <<locked>> | 82% | 56,898 psi | 89% | 2989 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 56,884 psi | 89% | 3022 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 55,056 psi | 86% | 3015 fps | 99.7% |
| Lovex S071ᴾ | <<locked>> | 100% | 51,329 psi | 80% | 2963 fps | 99.7% |
| Norma 204 | <<locked>> | 90% | 57,653 psi | 90% | 3097 fps | 98.9% |
| Norma MRP | <<locked>> | 94% | 53,809 psi | 84% | 3120 fps | 99.5% |
| Norma URP | <<locked>> | 88% | 54,331 psi | 85% | 3035 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 56,681 psi | 89% | 3163 fps | 98.5% |
| Ramshot Hunter | <<locked>> | 90% | 56,855 psi | 89% | 3097 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 54,810 psi | 86% | 3091 fps | 99.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,362 psi | 59% | 1962 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 55,927 psi | 88% | 3012 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 57,624 psi | 90% | 3120 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 55,811 psi | 87% | 3074 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 54,157 psi | 85% | 3104 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 50,241 psi | 79% | 3120 fps | 99.6% |
| Rottweil R 903 | <<locked>> | 84% | 55,927 psi | 88% | 3002 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 54,578 psi | 86% | 3015 fps | 97.7% |
| Rottweil R 905 | <<locked>> | 94% | 55,535 psi | 87% | 3077 fps | 98.9% |
| Rottweil R 907 | <<locked>> | 86% | 55,042 psi | 86% | 2999 fps | 99.3% |
| Shooters World Long Rifle | <<locked>> | 88% | 56,884 psi | 89% | 3022 fps | 100% |
| Shooters World Precision | <<locked>> | 82% | 56,898 psi | 89% | 2989 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 55,056 psi | 86% | 3015 fps | 99.7% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 54,099 psi | 85% | 3009 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 56,289 psi | 88% | 2877 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 56,507 psi | 89% | 2976 fps | 99.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 55,071 psi | 86% | 3074 fps | 98.9% |
| Somchem S355 | <<locked>> | 84% | 55,738 psi | 87% | 2995 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 56,115 psi | 88% | 3005 fps | 97.3% |
| Somchem S365 | <<locked>> | 90% | 54,259 psi | 85% | 3038 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 55,985 psi | 88% | 3051 fps | 99.4% |
| Vihtavuori N150 | <<locked>> | 86% | 57,290 psi | 90% | 2972 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 56,217 psi | 88% | 3028 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 55,564 psi | 87% | 3028 fps | 99.2% |
| Vihtavuori N540 | <<locked>> | 82% | 57,725 psi | 90% | 2966 fps | 100% |
| Vihtavuori N550 | <<locked>> | 88% | 55,390 psi | 87% | 3031 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 57,377 psi | 90% | 3107 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 53,824 psi | 84% | 3110 fps | 97.2% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 53,171 psi | 83% | 3081 fps | 97.3% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 56,086 psi | 88% | 2989 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 54,143 psi | 85% | 3051 fps | 99.5% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 56,202 psi | 88% | 3215 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 56,289 psi | 88% | 3048 fps | 98.9% |
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 3100 | <<locked>> | 82% | 33,127 psi | 52% | 2582 fps | 95.6% |
| Accurate 4064 | <<locked>> | 80% | 53,838 psi | 84% | 2927 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 41,930 psi | 66% | 2805 fps | 99.4% |
| Accurate High Country | <<locked>> | 88% | 44,817 psi | 70% | 2949 fps | 95.6% |
| Accurate MAGPRO | 85.3 gr | 92% | 49,139 psi | 77% | 3025 fps | 95.4% |
| ADI AR 2208 | <<locked>> | 80% | 50,618 psi | 79% | 2913 fps | 100% |
| ADI AR 2209 | <<locked>> | 84% | 40,437 psi | 63% | 2792 fps | 95.2% |
| ADI AR 2213 | <<locked>> | 90% | 44,237 psi | 69% | 2904 fps | 95% |
| ADI AR 2225 | <<locked>> | 96% | 35,099 psi | 55% | 2726 fps | 95.1% |
| Alliant Power Pro Varmint | <<locked>> | 84% | 40,756 psi | 64% | 2792 fps | 95.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 51,503 psi | 81% | 2933 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 40,553 psi | 64% | 2818 fps | 99.5% |
| Alliant Reloder-17 | <<locked>> | 80% | 46,905 psi | 74% | 2949 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 40,321 psi | 63% | 2782 fps | 95.3% |
| Alliant Reloder-22 | <<locked>> | 88% | 40,973 psi | 64% | 2841 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 80% | 29,776 psi | 47% | 2552 fps | 97.9% |
| Alliant Reloder-25 | <<locked>> | 86% | 31,836 psi | 50% | 2628 fps | 95.6% |
| Alliant Reloder-26 | 75 gr | 80% | 32,343 psi | 51% | 2680 fps | 96.7% |
| Bofors RP15 | <<locked>> | 90% | 40,567 psi | 64% | 2828 fps | 95.3% |
| Bofors RP3 | <<locked>> | 80% | 52,170 psi | 82% | 2949 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 43,453 psi | 68% | 2920 fps | 95.6% |
| Bofors RP5 | <<locked>> | 88% | 40,973 psi | 64% | 2841 fps | 95.7% |
| Bofors RP7 | <<locked>> | 80% | 45,469 psi | 71% | 2822 fps | 97.8% |
| Hodgdon H1000 | <<locked>> | 96% | 43,540 psi | 68% | 2881 fps | 95.8% |
| Hodgdon H380 | <<locked>> | 80% | 52,460 psi | 82% | 2966 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 44,063 psi | 69% | 2861 fps | 98% |
| Hodgdon H4350 | <<locked>> | 80% | 46,789 psi | 73% | 2884 fps | 97.5% |
| Hodgdon H4831 | <<locked>> | 90% | 47,413 psi | 74% | 2913 fps | 95.3% |
| Hodgdon H4831 SC | <<locked>> | 90% | 46,485 psi | 73% | 2894 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 38,145 psi | 60% | 2700 fps | 99.7% |
| Hodgdon Retumbo | <<locked>> | 94% | 40,596 psi | 64% | 2913 fps | 96.2% |
| Hodgdon Superformance | <<locked>> | 80% | 43,279 psi | 68% | 2877 fps | 97.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,412 psi | 43% | 1716 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 53,272 psi | 83% | 2946 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 41,046 psi | 64% | 2746 fps | 96.7% |
| IMR 4451 Enduron | <<locked>> | 80% | 46,891 psi | 73% | 2854 fps | 98.4% |
| IMR 4831 | <<locked>> | 80% | 40,190 psi | 63% | 2756 fps | 99.2% |
| IMR 4955 Enduron | <<locked>> | 88% | 46,050 psi | 72% | 2848 fps | 95.1% |
| IMR 7828 SSC | <<locked>> | 92% | 45,324 psi | 71% | 2940 fps | 95.5% |
| Lovex S062 | <<locked>> | 80% | 53,432 psi | 84% | 2936 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 44,222 psi | 69% | 2795 fps | 99% |
| Lovex S070 | <<locked>> | 80% | 42,569 psi | 67% | 2779 fps | 97.8% |
| Lovex S071 | <<locked>> | 86% | 32,329 psi | 51% | 2559 fps | 95.2% |
| Norma 204 | <<locked>> | 80% | 40,741 psi | 64% | 2776 fps | 95.2% |
| Norma MRP | <<locked>> | 84% | 37,405 psi | 59% | 2782 fps | 95.9% |
| Norma URP | <<locked>> | 80% | 41,568 psi | 65% | 2802 fps | 99.3% |
| Ramshot Grand | <<locked>> | 92% | 45,339 psi | 71% | 2949 fps | 95.9% |
| Ramshot Hunter | <<locked>> | 80% | 40,451 psi | 63% | 2789 fps | 97.9% |
| Ramshot Magnum | <<locked>> | 90% | 37,434 psi | 59% | 2746 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,021 psi | 44% | 1759 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 52,141 psi | 82% | 2949 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 49,821 psi | 78% | 3002 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 42,047 psi | 66% | 2828 fps | 99.2% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 40,524 psi | 64% | 2841 fps | 98.9% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 37,376 psi | 59% | 2822 fps | 96.1% |
| Rottweil R 903 | <<locked>> | 80% | 49,095 psi | 77% | 2894 fps | 100% |
| Rottweil R 904 | <<locked>> | 86% | 44,802 psi | 70% | 2831 fps | 95.4% |
| Rottweil R 905 | <<locked>> | 84% | 39,566 psi | 62% | 2769 fps | 95.2% |
| Rottweil R 907 | <<locked>> | 80% | 45,469 psi | 71% | 2822 fps | 97.8% |
| Shooters World Long Rifle | <<locked>> | 80% | 44,222 psi | 69% | 2795 fps | 99% |
| Shooters World Precision | <<locked>> | 80% | 53,432 psi | 84% | 2936 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 42,569 psi | 67% | 2779 fps | 97.8% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 50,560 psi | 79% | 2953 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 49,661 psi | 78% | 2782 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 43,337 psi | 68% | 2743 fps | 97.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 39,218 psi | 61% | 2762 fps | 95.1% |
| Somchem S355 | <<locked>> | 80% | 49,052 psi | 77% | 2887 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 49,037 psi | 77% | 2884 fps | 95.8% |
| Somchem S365 | <<locked>> | 80% | 38,319 psi | 60% | 2753 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 37,492 psi | 59% | 2690 fps | 95.5% |
| Vihtavuori N150 | <<locked>> | 80% | 47,021 psi | 74% | 2815 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 42,946 psi | 67% | 2799 fps | 99.4% |
| Vihtavuori N165 | <<locked>> | 88% | 39,653 psi | 62% | 2730 fps | 95.8% |
| Vihtavuori N540 | <<locked>> | 80% | 54,288 psi | 85% | 2917 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 42,453 psi | 67% | 2799 fps | 99.3% |
| Vihtavuori N555 | <<locked>> | 80% | 33,344 psi | 52% | 2635 fps | 97.9% |
| Vihtavuori N560 | <<locked>> | 90% | 46,789 psi | 73% | 2976 fps | 95.4% |
| Vihtavuori N565 | <<locked>> | 96% | 46,340 psi | 73% | 2953 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 42,090 psi | 66% | 2762 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 44,063 psi | 69% | 2861 fps | 98% |
| Winchester StaBALL HD | 72 gr | 80% | 26,266 psi | 41% | 2530 fps | 97.1% |
| Winchester Supreme 780 | <<locked>> | 86% | 39,479 psi | 62% | 2733 fps | 95% |
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 82 powders for .300 Norma Mag. loaded with the .308 | 167gr | Peregrine Plainsmaster (VLR-4). Winchester StaBALL HD delivers the highest muzzle velocity at 3,215 fps; across all powders the maximum-charge window runs from 1,919 fps to 3,215 fps. ADI AR 2225 gives the best case fill at 100 %, and 82 of the 82 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 167.0 gr projectile in 0.308" calls for a 1:11.0 twist; slower twists will usually not stabilise this weight. ADI AR 2225, Alliant Reloder-25, Bofors RP15 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. Accurate MAGPRO, Alliant Reloder-26, Winchester StaBALL HD rank at the top here: for .300 Norma Mag. with the .308 | 167gr | Peregrine Plainsmaster (VLR-4) 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.