Load Specifications
Load data in caliber .300 PRC with .308 | 165gr | NorthFork Bonded Core 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 Alliant Reloder-26.
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% | 58,001 psi | 89% | 3002 fps | 99.3% |
| Accurate 3100 | <<locked>> | 98% | 58,117 psi | 89% | 3061 fps | 99.9% |
| Accurate 4064 | <<locked>> | 82% | 57,943 psi | 89% | 2979 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 55,825 psi | 86% | 3048 fps | 100% |
| Accurate High Country | <<locked>> | 94% | 55,695 psi | 86% | 3153 fps | 97.9% |
| Accurate MAGPRO | <<locked>> | 96% | 56,681 psi | 87% | 3150 fps | 96.8% |
| ADI AR 2208 | <<locked>> | 84% | 57,493 psi | 88% | 3018 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 56,637 psi | 87% | 3097 fps | 98.7% |
| ADI AR 2213 | <<locked>> | 98% | 58,146 psi | 89% | 3156 fps | 98% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 40,335 psi | 62% | 2858 fps | 97% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 56,927 psi | 88% | 3094 fps | 98.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 58,653 psi | 90% | 3038 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 58,813 psi | 90% | 3064 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 56,536 psi | 87% | 3107 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 58,015 psi | 89% | 3127 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 56,188 psi | 86% | 3087 fps | 98.7% |
| Alliant Reloder-22 | <<locked>> | 98% | 57,783 psi | 89% | 3153 fps | 99% |
| Alliant Reloder-23 | <<locked>> | 98% | 55,027 psi | 85% | 3074 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 50,894 psi | 78% | 3068 fps | 99.9% |
| Alliant Reloder-26 | <<locked>> | 94% | 55,317 psi | 85% | 3159 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 56,652 psi | 87% | 3130 fps | 98.8% |
| Bofors RP3 | <<locked>> | 82% | 56,043 psi | 86% | 3005 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 46,673 psi | 72% | 2982 fps | 96.3% |
| Bofors RP5 | <<locked>> | 98% | 57,783 psi | 89% | 3153 fps | 99% |
| Bofors RP7 | <<locked>> | 88% | 58,711 psi | 90% | 3051 fps | 99.5% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 50,183 psi | 77% | 3009 fps | 97.3% |
| Hodgdon H380 | <<locked>> | 82% | 56,202 psi | 86% | 3025 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 57,754 psi | 89% | 3104 fps | 99.7% |
| Hodgdon H4350 | <<locked>> | 86% | 56,927 psi | 88% | 3061 fps | 99% |
| Hodgdon H4831 | <<locked>> | 96% | 58,204 psi | 90% | 3094 fps | 97.4% |
| Hodgdon H4831 SC | <<locked>> | 96% | 57,101 psi | 88% | 3077 fps | 97.2% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 57,000 psi | 88% | 3028 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 49,763 psi | 77% | 3114 fps | 98.6% |
| Hodgdon Superformance | <<locked>> | 88% | 58,407 psi | 90% | 3143 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,883 psi | 57% | 1916 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 56,811 psi | 87% | 2999 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 56,550 psi | 87% | 3031 fps | 99.3% |
| IMR 4451 Enduron | <<locked>> | 86% | 56,652 psi | 87% | 3022 fps | 99.5% |
| IMR 4831 | <<locked>> | 90% | 56,144 psi | 86% | 3038 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 55,637 psi | 86% | 3022 fps | 97.1% |
| IMR 7828 SSC | <<locked>> | 98% | 55,840 psi | 86% | 3130 fps | 97.7% |
| Lovex S062 | <<locked>> | 82% | 57,116 psi | 88% | 2989 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 57,203 psi | 88% | 3018 fps | 100% |
| Lovex S070 | <<locked>> | 90% | 58,755 psi | 90% | 3068 fps | 99.8% |
| Lovex S071ᴾ | <<locked>> | 100% | 51,808 psi | 80% | 2963 fps | 99.6% |
| Norma 203B | <<locked>> | 82% | 58,102 psi | 89% | 3048 fps | 100% |
| Norma 204 | <<locked>> | 90% | 57,740 psi | 89% | 3091 fps | 98.7% |
| Norma MRP | <<locked>> | 96% | 57,783 psi | 89% | 3179 fps | 99.7% |
| Norma URP | <<locked>> | 90% | 58,015 psi | 89% | 3087 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 56,405 psi | 87% | 3150 fps | 98.2% |
| Ramshot Hunter | <<locked>> | 90% | 56,985 psi | 88% | 3091 fps | 99.9% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 54,694 psi | 84% | 3084 fps | 99.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,536 psi | 58% | 1962 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 55,941 psi | 86% | 3005 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 57,450 psi | 88% | 3114 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 55,767 psi | 86% | 3071 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 58,146 psi | 89% | 3159 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 50,270 psi | 77% | 3114 fps | 99.4% |
| Rottweil R 903 | <<locked>> | 84% | 56,333 psi | 87% | 3002 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 58,015 psi | 89% | 3068 fps | 98% |
| Rottweil R 905 | <<locked>> | 94% | 55,637 psi | 86% | 3074 fps | 98.7% |
| Rottweil R 907 | <<locked>> | 88% | 58,711 psi | 90% | 3051 fps | 99.5% |
| Shooters World Long Rifle | <<locked>> | 88% | 57,203 psi | 88% | 3018 fps | 100% |
| Shooters World Precision | <<locked>> | 82% | 57,116 psi | 88% | 2989 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 58,755 psi | 90% | 3068 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 57,783 psi | 89% | 3061 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 56,565 psi | 87% | 2877 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 56,681 psi | 87% | 2969 fps | 99.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 55,201 psi | 85% | 3071 fps | 98.6% |
| Somchem S355 | <<locked>> | 84% | 56,028 psi | 86% | 2995 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 56,173 psi | 86% | 2999 fps | 97% |
| Somchem S365 | <<locked>> | 92% | 58,088 psi | 89% | 3087 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 56,057 psi | 86% | 3045 fps | 99.3% |
| Vihtavuori N150 | <<locked>> | 86% | 57,348 psi | 88% | 2969 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 56,231 psi | 87% | 3025 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 55,608 psi | 86% | 3022 fps | 99% |
| Vihtavuori N540 | <<locked>> | 82% | 57,943 psi | 89% | 2966 fps | 100% |
| Vihtavuori N550 | <<locked>> | 88% | 55,564 psi | 85% | 3031 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 57,479 psi | 88% | 3104 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 57,725 psi | 89% | 3169 fps | 97.6% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 53,388 psi | 82% | 3077 fps | 97% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 55,956 psi | 86% | 2986 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 57,957 psi | 89% | 3107 fps | 99.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 55,825 psi | 86% | 3209 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 56,289 psi | 87% | 3041 fps | 98.6% |
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% | 54,317 psi | 84% | 2943 fps | 98.9% |
| Accurate 3100 | <<locked>> | 82% | 33,779 psi | 52% | 2589 fps | 95.5% |
| Accurate 4064 | <<locked>> | 80% | 54,375 psi | 84% | 2930 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 42,380 psi | 65% | 2808 fps | 99.3% |
| Accurate High Country | <<locked>> | 88% | 45,078 psi | 69% | 2949 fps | 95.2% |
| Accurate MAGPRO | <<locked>> | 94% | 52,808 psi | 81% | 3084 fps | 96% |
| ADI AR 2208 | <<locked>> | 80% | 50,662 psi | 78% | 2907 fps | 100% |
| ADI AR 2209 | <<locked>> | 86% | 43,468 psi | 67% | 2851 fps | 95.9% |
| ADI AR 2213 | <<locked>> | 92% | 47,471 psi | 73% | 2963 fps | 95.6% |
| ADI AR 2225 | <<locked>> | 98% | 37,869 psi | 58% | 2792 fps | 96% |
| Alliant Power Pro Varmint | <<locked>> | 84% | 41,017 psi | 63% | 2789 fps | 95.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 51,706 psi | 80% | 2933 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 55,027 psi | 85% | 3005 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 40,683 psi | 63% | 2815 fps | 99.3% |
| Alliant Reloder-17 | <<locked>> | 80% | 46,876 psi | 72% | 2946 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 40,611 psi | 62% | 2782 fps | 95% |
| Alliant Reloder-22 | <<locked>> | 88% | 41,162 psi | 63% | 2835 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 80% | 30,197 psi | 46% | 2556 fps | 97.7% |
| Alliant Reloder-25 | <<locked>> | 86% | 32,184 psi | 50% | 2631 fps | 95.4% |
| Alliant Reloder-26 | 73.9 gr | 80% | 32,735 psi | 50% | 2684 fps | 96.5% |
| Bofors RP15 | <<locked>> | 90% | 40,785 psi | 63% | 2825 fps | 95% |
| Bofors RP3 | <<locked>> | 80% | 52,518 psi | 81% | 2949 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 43,613 psi | 67% | 2917 fps | 95.3% |
| Bofors RP5 | <<locked>> | 88% | 41,162 psi | 63% | 2835 fps | 95.3% |
| Bofors RP7 | <<locked>> | 80% | 45,730 psi | 70% | 2822 fps | 97.6% |
| Hodgdon H1000 | <<locked>> | 96% | 43,656 psi | 67% | 2874 fps | 95.4% |
| Hodgdon H380 | <<locked>> | 80% | 52,533 psi | 81% | 2963 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 80% | 44,164 psi | 68% | 2854 fps | 97.7% |
| Hodgdon H4350 | <<locked>> | 80% | 46,934 psi | 72% | 2881 fps | 97.2% |
| Hodgdon H4831 | <<locked>> | 90% | 47,543 psi | 73% | 2907 fps | 95% |
| Hodgdon H4831 SC | <<locked>> | 92% | 49,835 psi | 77% | 2953 fps | 95.6% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 38,377 psi | 59% | 2700 fps | 99.6% |
| Hodgdon Retumbo | <<locked>> | 94% | 40,756 psi | 63% | 2907 fps | 95.7% |
| Hodgdon Superformance | <<locked>> | 80% | 43,410 psi | 67% | 2874 fps | 97.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,586 psi | 42% | 1716 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 53,330 psi | 82% | 2943 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 41,278 psi | 64% | 2743 fps | 96.4% |
| IMR 4451 Enduron | <<locked>> | 80% | 47,007 psi | 72% | 2848 fps | 98.2% |
| IMR 4831 | <<locked>> | 80% | 40,538 psi | 62% | 2756 fps | 99% |
| IMR 4955 Enduron | <<locked>> | 90% | 49,139 psi | 76% | 2904 fps | 95.7% |
| IMR 7828 SSC | <<locked>> | 92% | 45,513 psi | 70% | 2933 fps | 95.1% |
| Lovex S062 | <<locked>> | 80% | 53,824 psi | 83% | 2940 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 44,541 psi | 69% | 2795 fps | 98.8% |
| Lovex S070 | <<locked>> | 80% | 42,917 psi | 66% | 2779 fps | 97.6% |
| Lovex S071 | <<locked>> | 86% | 32,967 psi | 51% | 2569 fps | 95.1% |
| Norma 203B | <<locked>> | 80% | 54,389 psi | 84% | 2992 fps | 100% |
| Norma 204 | <<locked>> | 82% | 43,932 psi | 68% | 2838 fps | 95.9% |
| Norma MRP | 75.3 gr | 84% | 37,695 psi | 58% | 2782 fps | 95.6% |
| Norma URP | <<locked>> | 80% | 41,858 psi | 64% | 2799 fps | 99.1% |
| Ramshot Grand | <<locked>> | 92% | 45,455 psi | 70% | 2943 fps | 95.5% |
| Ramshot Hunter | <<locked>> | 80% | 40,712 psi | 63% | 2785 fps | 97.7% |
| Ramshot Magnum | <<locked>> | 92% | 40,509 psi | 62% | 2808 fps | 96% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,094 psi | 43% | 1755 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 52,373 psi | 81% | 2946 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 49,719 psi | 76% | 2999 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 42,279 psi | 65% | 2828 fps | 99.1% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 40,640 psi | 63% | 2835 fps | 98.7% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 37,695 psi | 58% | 2822 fps | 95.8% |
| Rottweil R 903 | <<locked>> | 80% | 49,458 psi | 76% | 2894 fps | 100% |
| Rottweil R 904 | <<locked>> | 86% | 45,034 psi | 69% | 2831 fps | 95.1% |
| Rottweil R 905 | <<locked>> | 86% | 42,482 psi | 65% | 2825 fps | 95.8% |
| Rottweil R 907 | <<locked>> | 80% | 45,730 psi | 70% | 2822 fps | 97.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 44,541 psi | 69% | 2795 fps | 98.8% |
| Shooters World Precision | <<locked>> | 80% | 53,824 psi | 83% | 2940 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 42,917 psi | 66% | 2779 fps | 97.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 50,734 psi | 78% | 2949 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 49,893 psi | 77% | 2782 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 43,700 psi | 67% | 2740 fps | 97.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 42,105 psi | 65% | 2822 fps | 95.7% |
| Somchem S355 | <<locked>> | 80% | 49,327 psi | 76% | 2887 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 49,110 psi | 76% | 2877 fps | 95.4% |
| Somchem S365 | <<locked>> | 80% | 38,595 psi | 59% | 2753 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 37,797 psi | 58% | 2687 fps | 95.2% |
| Vihtavuori N150 | <<locked>> | 80% | 47,268 psi | 73% | 2812 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 43,178 psi | 66% | 2795 fps | 99.3% |
| Vihtavuori N165 | <<locked>> | 88% | 39,885 psi | 61% | 2726 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 80% | 54,302 psi | 84% | 2913 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 42,627 psi | 66% | 2795 fps | 99.1% |
| Vihtavuori N555 | <<locked>> | 80% | 33,837 psi | 52% | 2641 fps | 97.8% |
| Vihtavuori N560 | 80.7 gr | 90% | 46,818 psi | 72% | 2972 fps | 95% |
| Vihtavuori N565 | <<locked>> | 96% | 46,427 psi | 71% | 2943 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 42,351 psi | 65% | 2762 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 44,338 psi | 68% | 2861 fps | 97.8% |
| Winchester StaBALL HD | <<locked>> | 80% | 26,847 psi | 41% | 2539 fps | 97.1% |
| Winchester Supreme 780 | <<locked>> | 88% | 42,467 psi | 65% | 2789 fps | 95.6% |
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 PRC loaded with the .308 | 165gr | NorthFork Bonded Core. Winchester StaBALL HD delivers the highest muzzle velocity at 3,209 fps; across all powders the maximum-charge window runs from 1,916 fps to 3,209 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 (448 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 165.0 gr projectile in 0.308" calls for a 1:13.0 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. Norma MRP, Vihtavuori N560, Alliant Reloder-26 rank at the top here: for .300 PRC with the .308 | 165gr | NorthFork Bonded Core 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.