Load Specifications
Load data in caliber .300 PRC with .308 | 178gr | Hornady BTHP Match bullet and 81 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Accurate MAGPRO, Norma MRP and Vihtavuori N560.
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 3100 | <<locked>> | 96% | 55,941 psi | 86% | 2930 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 57,421 psi | 88% | 2966 fps | 100% |
| Accurate High Country | <<locked>> | 94% | 57,305 psi | 88% | 3077 fps | 98.6% |
| Accurate MAGPRO | <<locked>> | 96% | 58,305 psi | 90% | 3081 fps | 97.8% |
| ADI AR 2208 | <<locked>> | 84% | 58,610 psi | 90% | 2927 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 58,247 psi | 90% | 3022 fps | 99.3% |
| ADI AR 2213 | <<locked>> | 96% | 55,753 psi | 86% | 3018 fps | 98.2% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 46,717 psi | 72% | 2844 fps | 96.5% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 41,423 psi | 64% | 2799 fps | 98.2% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 58,349 psi | 90% | 3015 fps | 99.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 56,405 psi | 87% | 2897 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 58,131 psi | 89% | 3018 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 55,680 psi | 86% | 2982 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 57,609 psi | 89% | 3005 fps | 99.3% |
| Alliant Reloder-22 | <<locked>> | 96% | 55,564 psi | 85% | 3015 fps | 99.2% |
| Alliant Reloder-23 | <<locked>> | 98% | 56,536 psi | 87% | 2989 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 52,170 psi | 80% | 2989 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 94% | 57,319 psi | 88% | 3084 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 58,276 psi | 90% | 3054 fps | 99.3% |
| Bofors RP3 | <<locked>> | 82% | 57,377 psi | 88% | 2913 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 48,283 psi | 74% | 2917 fps | 97.4% |
| Bofors RP5 | <<locked>> | 96% | 55,564 psi | 85% | 3015 fps | 99.2% |
| Bofors RP7 | <<locked>> | 86% | 56,405 psi | 87% | 2910 fps | 99.6% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 51,430 psi | 79% | 2936 fps | 98.2% |
| Hodgdon H380 | <<locked>> | 82% | 57,551 psi | 89% | 2936 fps | 100% |
| Hodgdon H414 | <<locked>> | 86% | 55,448 psi | 85% | 2963 fps | 99.8% |
| Hodgdon H4350 | <<locked>> | 86% | 58,247 psi | 90% | 2976 fps | 99.4% |
| Hodgdon H4831 | <<locked>> | 94% | 55,724 psi | 86% | 2956 fps | 97.6% |
| Hodgdon H4831 SC | <<locked>> | 96% | 58,479 psi | 90% | 2999 fps | 98% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 58,407 psi | 90% | 2940 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 51,126 psi | 79% | 3048 fps | 99.3% |
| Hodgdon Superformance | <<locked>> | 86% | 55,782 psi | 86% | 2999 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,999 psi | 57% | 1841 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 58,059 psi | 89% | 2907 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 57,754 psi | 89% | 2946 fps | 99.7% |
| IMR 4451 Enduron | <<locked>> | 86% | 57,957 psi | 89% | 2936 fps | 99.8% |
| IMR 4831 | <<locked>> | 90% | 57,754 psi | 89% | 2956 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 57,072 psi | 88% | 2943 fps | 98% |
| IMR 7828 SSC | <<locked>> | 98% | 57,392 psi | 88% | 3058 fps | 98.6% |
| Lovex S062 | <<locked>> | 82% | 58,392 psi | 90% | 2897 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 58,421 psi | 90% | 2933 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 56,521 psi | 87% | 2927 fps | 99.8% |
| Lovex S071ᴾ | <<locked>> | 100% | 53,287 psi | 82% | 2887 fps | 99.9% |
| Norma 204 | <<locked>> | 88% | 55,230 psi | 85% | 2949 fps | 98.8% |
| Norma MRP | <<locked>> | 94% | 55,390 psi | 85% | 3038 fps | 99.8% |
| Norma URP | <<locked>> | 88% | 55,767 psi | 86% | 2946 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 58,276 psi | 90% | 3077 fps | 99% |
| Ramshot Hunter | <<locked>> | 90% | 58,291 psi | 90% | 3005 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 56,333 psi | 87% | 3009 fps | 99.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,710 psi | 58% | 1880 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 57,101 psi | 88% | 2920 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 55,013 psi | 85% | 2969 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 57,421 psi | 88% | 2989 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 55,695 psi | 86% | 3015 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 51,648 psi | 79% | 3045 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 84% | 57,696 psi | 89% | 2913 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 55,695 psi | 86% | 2927 fps | 98.2% |
| Rottweil R 905 | <<locked>> | 94% | 57,043 psi | 88% | 2992 fps | 99.3% |
| Rottweil R 907 | <<locked>> | 86% | 56,405 psi | 87% | 2910 fps | 99.6% |
| Shooters World Long Rifle | <<locked>> | 88% | 58,421 psi | 90% | 2933 fps | 100% |
| Shooters World Precision | <<locked>> | 82% | 58,392 psi | 90% | 2897 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 56,521 psi | 87% | 2927 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 55,463 psi | 85% | 2920 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 57,740 psi | 89% | 2785 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 57,725 psi | 89% | 2884 fps | 99.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 56,579 psi | 87% | 2989 fps | 99.2% |
| Somchem S355 | <<locked>> | 84% | 57,217 psi | 88% | 2907 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 57,435 psi | 88% | 2923 fps | 97.8% |
| Somchem S365 | <<locked>> | 90% | 55,869 psi | 86% | 2946 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 57,493 psi | 88% | 2966 fps | 99.7% |
| Vihtavuori N150 | <<locked>> | 86% | 58,537 psi | 90% | 2877 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 57,711 psi | 89% | 2940 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 57,029 psi | 88% | 2943 fps | 99.5% |
| Vihtavuori N550 | <<locked>> | 88% | 56,855 psi | 87% | 2943 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 55,463 psi | 85% | 2966 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 55,332 psi | 85% | 3031 fps | 97.8% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 54,795 psi | 84% | 3002 fps | 97.9% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 57,348 psi | 88% | 2900 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 55,680 psi | 86% | 2966 fps | 99.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 57,972 psi | 89% | 3127 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 57,754 psi | 89% | 2963 fps | 99.2% |
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>> | 80% | 32,430 psi | 50% | 2470 fps | 95.8% |
| Accurate 4350 | <<locked>> | 80% | 43,671 psi | 67% | 2736 fps | 99.7% |
| Accurate High Country | <<locked>> | 86% | 43,250 psi | 67% | 2815 fps | 95.5% |
| Accurate MAGPRO | 79.7 gr | 90% | 47,137 psi | 73% | 2881 fps | 95.2% |
| ADI AR 2208 | <<locked>> | 80% | 51,880 psi | 80% | 2822 fps | 100% |
| ADI AR 2209 | <<locked>> | 82% | 39,030 psi | 60% | 2661 fps | 95.2% |
| ADI AR 2213 | <<locked>> | 90% | 45,614 psi | 70% | 2828 fps | 95.9% |
| ADI AR 2217 | <<locked>> | 98% | 43,613 psi | 67% | 2782 fps | 95.5% |
| ADI AR 2225 | <<locked>> | 94% | 34,185 psi | 53% | 2608 fps | 95.2% |
| Alliant Power Pro Varmint | <<locked>> | 82% | 39,436 psi | 61% | 2664 fps | 95.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 52,866 psi | 81% | 2844 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 41,930 psi | 65% | 2743 fps | 99.8% |
| Alliant Reloder-17 | <<locked>> | 80% | 48,327 psi | 74% | 2867 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 82% | 39,059 psi | 60% | 2657 fps | 95.3% |
| Alliant Reloder-22 | <<locked>> | 86% | 39,668 psi | 61% | 2710 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 80% | 31,183 psi | 48% | 2503 fps | 98.7% |
| Alliant Reloder-25 | <<locked>> | 84% | 31,053 psi | 48% | 2516 fps | 95.8% |
| Alliant Reloder-26 | <<locked>> | 80% | 33,794 psi | 52% | 2628 fps | 97.8% |
| Bofors RP15 | <<locked>> | 88% | 39,320 psi | 60% | 2700 fps | 95.4% |
| Bofors RP3 | <<locked>> | 80% | 53,693 psi | 83% | 2861 fps | 100% |
| Bofors RP30 | <<locked>> | 96% | 42,192 psi | 65% | 2795 fps | 95.7% |
| Bofors RP5 | <<locked>> | 86% | 39,668 psi | 61% | 2710 fps | 95.7% |
| Bofors RP7 | <<locked>> | 80% | 46,746 psi | 72% | 2743 fps | 98.3% |
| Hodgdon H1000 | <<locked>> | 94% | 41,989 psi | 65% | 2749 fps | 95.7% |
| Hodgdon H380 | <<locked>> | 80% | 53,911 psi | 83% | 2881 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 45,469 psi | 70% | 2785 fps | 98.6% |
| Hodgdon H4350 | <<locked>> | 80% | 47,935 psi | 74% | 2802 fps | 98% |
| Hodgdon H4831 | <<locked>> | 88% | 45,629 psi | 70% | 2776 fps | 95.2% |
| Hodgdon H4831 SC | <<locked>> | 90% | 47,863 psi | 74% | 2818 fps | 95.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 39,610 psi | 61% | 2631 fps | 99.9% |
| Hodgdon Retumbo | <<locked>> | 90% | 36,854 psi | 57% | 2720 fps | 95% |
| Hodgdon Superformance | <<locked>> | 80% | 44,744 psi | 69% | 2805 fps | 98.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,572 psi | 42% | 1640 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 54,607 psi | 84% | 2858 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 42,308 psi | 65% | 2674 fps | 97.4% |
| IMR 4451 Enduron | <<locked>> | 80% | 48,022 psi | 74% | 2769 fps | 98.9% |
| IMR 4831 | <<locked>> | 80% | 41,684 psi | 64% | 2684 fps | 99.6% |
| IMR 4955 Enduron | <<locked>> | 86% | 44,295 psi | 68% | 2713 fps | 95% |
| IMR 7828 SSC | <<locked>> | 90% | 43,743 psi | 67% | 2805 fps | 95.4% |
| Lovex S062 | <<locked>> | 80% | 54,955 psi | 85% | 2848 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 45,701 psi | 70% | 2720 fps | 99.4% |
| Lovex S070 | <<locked>> | 80% | 43,961 psi | 68% | 2707 fps | 98.4% |
| Lovex S071 | <<locked>> | 84% | 31,908 psi | 49% | 2457 fps | 95.5% |
| Norma 204 | <<locked>> | 80% | 42,061 psi | 65% | 2703 fps | 96.1% |
| Norma MRP | 71.3 gr | 82% | 36,289 psi | 56% | 2661 fps | 96% |
| Norma URP | <<locked>> | 80% | 42,989 psi | 66% | 2726 fps | 99.6% |
| Ramshot Grand | <<locked>> | 90% | 43,627 psi | 67% | 2815 fps | 95.8% |
| Ramshot Hunter | <<locked>> | 80% | 41,814 psi | 64% | 2717 fps | 98.5% |
| Ramshot Magnum | <<locked>> | 88% | 36,245 psi | 56% | 2625 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,268 psi | 43% | 1683 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 53,563 psi | 82% | 2864 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 51,256 psi | 79% | 2913 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 43,526 psi | 67% | 2756 fps | 99.6% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 41,887 psi | 64% | 2769 fps | 99.4% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 36,187 psi | 56% | 2700 fps | 96.1% |
| Rottweil R 903 | <<locked>> | 80% | 50,691 psi | 78% | 2808 fps | 100% |
| Rottweil R 904 | <<locked>> | 84% | 43,265 psi | 67% | 2700 fps | 95.4% |
| Rottweil R 905 | <<locked>> | 82% | 38,319 psi | 59% | 2641 fps | 95.2% |
| Rottweil R 907 | <<locked>> | 80% | 46,746 psi | 72% | 2743 fps | 98.3% |
| Shooters World Long Rifle | <<locked>> | 80% | 45,701 psi | 70% | 2720 fps | 99.4% |
| Shooters World Precision | <<locked>> | 80% | 54,955 psi | 85% | 2848 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 43,961 psi | 68% | 2707 fps | 98.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 51,982 psi | 80% | 2864 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 50,966 psi | 78% | 2694 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 44,759 psi | 69% | 2667 fps | 98.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 82% | 37,971 psi | 58% | 2635 fps | 95.1% |
| Somchem S355 | <<locked>> | 80% | 50,633 psi | 78% | 2805 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 47,152 psi | 73% | 2749 fps | 95.6% |
| Somchem S365 | <<locked>> | 80% | 39,856 psi | 61% | 2684 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 36,347 psi | 56% | 2566 fps | 95.5% |
| Vihtavuori N150 | <<locked>> | 80% | 48,385 psi | 74% | 2730 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 44,367 psi | 68% | 2723 fps | 99.7% |
| Vihtavuori N165 | <<locked>> | 86% | 38,392 psi | 59% | 2605 fps | 95.8% |
| Vihtavuori N550 | <<locked>> | 80% | 43,830 psi | 67% | 2726 fps | 99.6% |
| Vihtavuori N555 | <<locked>> | 80% | 34,896 psi | 54% | 2579 fps | 98.7% |
| Vihtavuori N560 | 76.5 gr | 88% | 44,976 psi | 69% | 2838 fps | 95.3% |
| Vihtavuori N565 | <<locked>> | 94% | 44,730 psi | 69% | 2818 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 43,439 psi | 67% | 2687 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 45,469 psi | 70% | 2785 fps | 98.6% |
| Winchester StaBALL HD | <<locked>> | 80% | 27,659 psi | 43% | 2500 fps | 98.6% |
| Winchester Supreme 780 | <<locked>> | 84% | 38,130 psi | 59% | 2605 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 81 powders for .300 PRC loaded with the .308 | 178gr | Hornady BTHP Match. Winchester StaBALL HD delivers the highest muzzle velocity at 3,127 fps; across all powders the maximum-charge window runs from 1,841 fps to 3,127 fps. ADI AR 2217 gives the best case fill at 100 %, and 81 of the 81 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 178.0 gr projectile in 0.308" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, 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. Accurate MAGPRO, Norma MRP, Vihtavuori N560 rank at the top here: for .300 PRC with the .308 | 178gr | Hornady BTHP Match 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.