Load Specifications
Load data in caliber .300 PRC with .308 | 184gr | SUS-TAC HP bullet and 78 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Accurate MAGPRO, Ramshot Grand 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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Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 96% | 57,870 psi | 89% | 2913 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 55,709 psi | 86% | 2897 fps | 100% |
| Accurate MAGPRO | <<locked>> | 94% | 56,405 psi | 87% | 3009 fps | 97.8% |
| ADI AR 2208 | <<locked>> | 82% | 56,681 psi | 87% | 2854 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 56,391 psi | 87% | 2949 fps | 99.3% |
| ADI AR 2213 | <<locked>> | 96% | 57,783 psi | 89% | 3009 fps | 98.8% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 48,428 psi | 75% | 2841 fps | 97.4% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 43,192 psi | 66% | 2802 fps | 99% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 56,536 psi | 87% | 2946 fps | 99.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 58,059 psi | 89% | 2874 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 88% | 56,420 psi | 87% | 2949 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 57,624 psi | 89% | 2963 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 55,869 psi | 86% | 2940 fps | 99.3% |
| Alliant Reloder-22 | <<locked>> | 96% | 57,711 psi | 89% | 3005 fps | 99.6% |
| Alliant Reloder-23 | <<locked>> | 98% | 58,740 psi | 90% | 2972 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 54,273 psi | 83% | 2979 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 55,550 psi | 85% | 3012 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 96% | 55,912 psi | 86% | 2910 fps | 95.8% |
| Bofors RP15 | <<locked>> | 98% | 56,565 psi | 87% | 2986 fps | 99.4% |
| Bofors RP30ᴾ | <<locked>> | 100% | 50,415 psi | 78% | 2913 fps | 98.2% |
| Bofors RP5 | <<locked>> | 96% | 57,711 psi | 89% | 3005 fps | 99.6% |
| Bofors RP7 | <<locked>> | 86% | 57,943 psi | 89% | 2894 fps | 99.8% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 53,345 psi | 82% | 2933 fps | 98.9% |
| Hodgdon H414 | <<locked>> | 86% | 57,232 psi | 88% | 2946 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 84% | 56,217 psi | 86% | 2904 fps | 99.5% |
| Hodgdon H4831 | <<locked>> | 94% | 57,696 psi | 89% | 2946 fps | 98.3% |
| Hodgdon H4831 SC | <<locked>> | 94% | 56,565 psi | 87% | 2930 fps | 98.1% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 56,594 psi | 87% | 2871 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 53,388 psi | 82% | 3048 fps | 99.8% |
| Hodgdon Superformance | <<locked>> | 86% | 57,928 psi | 89% | 2986 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,101 psi | 57% | 1814 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 55,956 psi | 86% | 2877 fps | 99.7% |
| IMR 4451 Enduron | <<locked>> | 84% | 55,854 psi | 86% | 2861 fps | 99.8% |
| IMR 4831 | <<locked>> | 88% | 55,825 psi | 86% | 2884 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 58,639 psi | 90% | 2930 fps | 98.5% |
| IMR 7828 SSC | <<locked>> | 96% | 55,593 psi | 86% | 2986 fps | 98.6% |
| Lovex S065 | <<locked>> | 86% | 56,565 psi | 87% | 2864 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 58,160 psi | 89% | 2910 fps | 100% |
| Lovex S071ᴾ | <<locked>> | 100% | 55,129 psi | 85% | 2874 fps | 100% |
| Norma 204 | <<locked>> | 88% | 56,971 psi | 88% | 2936 fps | 99.3% |
| Norma 217ᴾ | <<locked>> | 100% | 38,682 psi | 60% | 2723 fps | 97.1% |
| Norma MRP | <<locked>> | 94% | 57,653 psi | 89% | 3028 fps | 100% |
| Norma URP | <<locked>> | 88% | 57,566 psi | 89% | 2930 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 56,217 psi | 86% | 3005 fps | 99% |
| Ramshot Hunter | <<locked>> | 88% | 56,376 psi | 87% | 2936 fps | 100% |
| Ramshot Magnum | <<locked>> | 98% | 54,578 psi | 84% | 2943 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,840 psi | 58% | 1857 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 57,305 psi | 88% | 2949 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 55,564 psi | 85% | 2917 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 57,682 psi | 89% | 3002 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 54,041 psi | 83% | 3048 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 48,791 psi | 75% | 2920 fps | 96.4% |
| Rottweil R 903 | <<locked>> | 82% | 55,709 psi | 86% | 2841 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 57,580 psi | 89% | 2920 fps | 98.8% |
| Rottweil R 905 | <<locked>> | 92% | 55,303 psi | 85% | 2927 fps | 99.3% |
| Rottweil R 907 | <<locked>> | 86% | 57,943 psi | 89% | 2894 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 86% | 56,565 psi | 87% | 2864 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 58,160 psi | 89% | 2910 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 57,174 psi | 88% | 2900 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 55,738 psi | 86% | 2717 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 55,811 psi | 86% | 2815 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 58,697 psi | 90% | 2979 fps | 99.6% |
| Somchem S355 | <<locked>> | 82% | 55,434 psi | 85% | 2835 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 55,448 psi | 85% | 2854 fps | 97.9% |
| Somchem S365 | <<locked>> | 90% | 58,088 psi | 89% | 2933 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 55,796 psi | 86% | 2897 fps | 99.7% |
| Vihtavuori N150 | <<locked>> | 84% | 56,637 psi | 87% | 2808 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 55,927 psi | 86% | 2871 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 55,259 psi | 85% | 2877 fps | 99.5% |
| Vihtavuori N550 | <<locked>> | 88% | 58,537 psi | 90% | 2927 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 57,450 psi | 88% | 2949 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 57,479 psi | 88% | 3022 fps | 98.5% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 57,232 psi | 88% | 2999 fps | 98.6% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 50,053 psi | 77% | 2927 fps | 96.1% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 55,201 psi | 85% | 2828 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 57,392 psi | 88% | 2949 fps | 99.9% |
| Winchester StaBALL HD | <<locked>> | 98% | 56,637 psi | 87% | 3058 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 55,854 psi | 86% | 2897 fps | 99.3% |
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 3100 | <<locked>> | 80% | 33,765 psi | 52% | 2467 fps | 96.7% |
| Accurate 4350 | <<locked>> | 80% | 45,310 psi | 70% | 2726 fps | 99.9% |
| Accurate MAGPRO | 78.5 gr | 88% | 45,730 psi | 70% | 2815 fps | 95.2% |
| ADI AR 2208 | <<locked>> | 80% | 53,156 psi | 82% | 2802 fps | 100% |
| ADI AR 2209 | <<locked>> | 80% | 37,884 psi | 58% | 2595 fps | 95.3% |
| ADI AR 2213 | <<locked>> | 88% | 44,048 psi | 68% | 2762 fps | 95.9% |
| ADI AR 2217 | <<locked>> | 96% | 42,424 psi | 65% | 2720 fps | 95.7% |
| ADI AR 2225 | <<locked>> | 92% | 33,315 psi | 51% | 2552 fps | 95.4% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 38,159 psi | 59% | 2595 fps | 95.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 54,462 psi | 84% | 2825 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 43,468 psi | 67% | 2733 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 50,111 psi | 77% | 2851 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 37,811 psi | 58% | 2592 fps | 95.3% |
| Alliant Reloder-22 | <<locked>> | 84% | 38,522 psi | 59% | 2644 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 80% | 32,460 psi | 50% | 2497 fps | 99.3% |
| Alliant Reloder-25 | <<locked>> | 82% | 30,153 psi | 46% | 2457 fps | 95.8% |
| Alliant Reloder-26 | 72.2 gr | 80% | 35,418 psi | 54% | 2631 fps | 98.6% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 52,678 psi | 81% | 2851 fps | 95% |
| Bofors RP15 | <<locked>> | 86% | 38,319 psi | 59% | 2641 fps | 95.5% |
| Bofors RP30 | <<locked>> | 94% | 41,133 psi | 63% | 2733 fps | 95.8% |
| Bofors RP5 | <<locked>> | 84% | 38,522 psi | 59% | 2644 fps | 95.7% |
| Bofors RP7 | <<locked>> | 80% | 48,109 psi | 74% | 2730 fps | 98.9% |
| Hodgdon H1000 | <<locked>> | 92% | 40,553 psi | 62% | 2684 fps | 95.7% |
| Hodgdon H414 | <<locked>> | 80% | 47,007 psi | 72% | 2776 fps | 99.1% |
| Hodgdon H4350 | <<locked>> | 80% | 49,414 psi | 76% | 2789 fps | 98.6% |
| Hodgdon H4831 | <<locked>> | 86% | 44,077 psi | 68% | 2710 fps | 95.2% |
| Hodgdon H4831 SC | <<locked>> | 86% | 43,207 psi | 66% | 2690 fps | 95% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 40,915 psi | 63% | 2615 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 88% | 35,781 psi | 55% | 2654 fps | 95.1% |
| Hodgdon Superformance | <<locked>> | 80% | 46,412 psi | 71% | 2795 fps | 98.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,731 psi | 43% | 1621 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 43,598 psi | 67% | 2661 fps | 98.1% |
| IMR 4451 Enduron | <<locked>> | 80% | 49,385 psi | 76% | 2756 fps | 99.3% |
| IMR 4831 | <<locked>> | 80% | 43,178 psi | 66% | 2674 fps | 99.8% |
| IMR 4955 Enduron | <<locked>> | 84% | 42,960 psi | 66% | 2651 fps | 95.1% |
| IMR 7828 SSC | <<locked>> | 88% | 42,482 psi | 65% | 2740 fps | 95.5% |
| Lovex S065 | <<locked>> | 80% | 47,094 psi | 72% | 2707 fps | 99.7% |
| Lovex S070 | <<locked>> | 80% | 45,353 psi | 70% | 2694 fps | 98.9% |
| Lovex S071 | <<locked>> | 82% | 31,140 psi | 48% | 2398 fps | 95.7% |
| Norma 204 | <<locked>> | 80% | 43,468 psi | 67% | 2697 fps | 96.9% |
| Norma 217 | <<locked>> | 96% | 33,866 psi | 52% | 2598 fps | 95.1% |
| Norma MRP | <<locked>> | 80% | 35,114 psi | 54% | 2592 fps | 96% |
| Norma URP | <<locked>> | 80% | 44,512 psi | 68% | 2713 fps | 99.9% |
| Ramshot Grand | 76.4 gr | 88% | 42,177 psi | 65% | 2746 fps | 95.8% |
| Ramshot Hunter | <<locked>> | 80% | 43,294 psi | 67% | 2707 fps | 99% |
| Ramshot Magnum | <<locked>> | 86% | 35,114 psi | 54% | 2562 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,442 psi | 44% | 1660 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 53,214 psi | 82% | 2894 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 45,179 psi | 70% | 2743 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 43,424 psi | 67% | 2762 fps | 99.7% |
| ReloadSwiss RS 76 | <<locked>> | 88% | 34,969 psi | 54% | 2631 fps | 96.1% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 45,310 psi | 70% | 2851 fps | 95.3% |
| Rottweil R 903 | <<locked>> | 80% | 52,344 psi | 81% | 2792 fps | 100% |
| Rottweil R 904 | <<locked>> | 82% | 41,785 psi | 64% | 2635 fps | 95.4% |
| Rottweil R 905 | <<locked>> | 80% | 37,101 psi | 57% | 2572 fps | 95.3% |
| Rottweil R 907 | <<locked>> | 80% | 48,109 psi | 74% | 2730 fps | 98.9% |
| Shooters World Long Rifle | <<locked>> | 80% | 47,094 psi | 72% | 2707 fps | 99.7% |
| Shooters World SW4350 | <<locked>> | 80% | 45,353 psi | 70% | 2694 fps | 98.9% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 53,592 psi | 82% | 2848 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 52,402 psi | 81% | 2671 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 46,093 psi | 71% | 2654 fps | 99% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 36,767 psi | 57% | 2569 fps | 95.1% |
| Somchem S355 | <<locked>> | 80% | 52,185 psi | 80% | 2789 fps | 100% |
| Somchem S361 | <<locked>> | 84% | 45,571 psi | 70% | 2684 fps | 95.7% |
| Somchem S365 | <<locked>> | 80% | 41,495 psi | 64% | 2671 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 37,637 psi | 58% | 2559 fps | 96.4% |
| Vihtavuori N150 | <<locked>> | 80% | 49,879 psi | 77% | 2710 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 45,876 psi | 71% | 2707 fps | 99.9% |
| Vihtavuori N165 | <<locked>> | 82% | 34,882 psi | 54% | 2490 fps | 95% |
| Vihtavuori N550 | <<locked>> | 80% | 45,324 psi | 70% | 2713 fps | 99.9% |
| Vihtavuori N555 | <<locked>> | 80% | 36,376 psi | 56% | 2575 fps | 99.3% |
| Vihtavuori N560 | <<locked>> | 86% | 43,598 psi | 67% | 2772 fps | 95.3% |
| Vihtavuori N565 | <<locked>> | 92% | 43,584 psi | 67% | 2756 fps | 95.6% |
| Vihtavuori N568 | <<locked>> | 98% | 46,543 psi | 72% | 2861 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 44,860 psi | 69% | 2671 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 47,007 psi | 72% | 2776 fps | 99.1% |
| Winchester StaBALL HD | <<locked>> | 80% | 28,776 psi | 44% | 2503 fps | 99.4% |
| Winchester Supreme 780 | <<locked>> | 82% | 36,898 psi | 57% | 2543 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 78 powders for .300 PRC loaded with the .308 | 184gr | SUS-TAC HP. Winchester StaBALL HD delivers the highest muzzle velocity at 3,058 fps; across all powders the maximum-charge window runs from 1,814 fps to 3,058 fps. ADI AR 2217 gives the best case fill at 100 %, and 78 of the 78 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 184.0 gr projectile in 0.308" calls for a 1:10.5 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, Ramshot Grand, Alliant Reloder-26 rank at the top here: for .300 PRC with the .308 | 184gr | SUS-TAC HP 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.