Load Specifications
Load data in caliber .300 PRC with .308 | 200gr | Frontier PH HPFB bullet and 74 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 Hodgdon Retumbo.
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>> | 94% | 58,059 psi | 89% | 2808 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 55,695 psi | 86% | 2782 fps | 100% |
| Accurate MAGPRO | <<locked>> | 92% | 56,768 psi | 87% | 2907 fps | 98.6% |
| ADI AR 2209 | <<locked>> | 90% | 56,347 psi | 87% | 2841 fps | 99.7% |
| ADI AR 2213 | <<locked>> | 94% | 57,914 psi | 89% | 2907 fps | 99.4% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 52,083 psi | 80% | 2812 fps | 99% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 46,514 psi | 72% | 2772 fps | 99.9% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 56,536 psi | 87% | 2838 fps | 99.7% |
| Alliant Reloder-16 | <<locked>> | 86% | 56,434 psi | 87% | 2831 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 57,522 psi | 88% | 2844 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 90% | 55,854 psi | 86% | 2831 fps | 99.7% |
| Alliant Reloder-22 | <<locked>> | 94% | 58,001 psi | 89% | 2900 fps | 99.9% |
| Alliant Reloder-23 | <<locked>> | 94% | 55,622 psi | 86% | 2815 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 58,798 psi | 90% | 2927 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 90% | 55,970 psi | 86% | 2900 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 55,521 psi | 85% | 2808 fps | 96.8% |
| Bofors RP15 | <<locked>> | 96% | 56,913 psi | 88% | 2881 fps | 99.8% |
| Bofors RP30ᴾ | <<locked>> | 100% | 54,810 psi | 84% | 2881 fps | 99.4% |
| Bofors RP5 | <<locked>> | 94% | 58,001 psi | 89% | 2900 fps | 99.9% |
| Bofors RP7 | <<locked>> | 84% | 57,624 psi | 89% | 2782 fps | 100% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 57,435 psi | 88% | 2897 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 84% | 57,159 psi | 88% | 2835 fps | 100% |
| Hodgdon H4350 | <<locked>> | 82% | 55,883 psi | 86% | 2792 fps | 99.8% |
| Hodgdon H4831 | <<locked>> | 92% | 57,653 psi | 89% | 2841 fps | 98.9% |
| Hodgdon H4831 SC | <<locked>> | 92% | 56,507 psi | 87% | 2825 fps | 98.8% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 56,768 psi | 87% | 2759 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 57,653 psi | 89% | 3009 fps | 100% |
| Hodgdon Superformance | <<locked>> | 84% | 57,725 psi | 89% | 2874 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,362 psi | 57% | 1749 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 55,666 psi | 86% | 2769 fps | 99.9% |
| IMR 4451 Enduron | <<locked>> | 82% | 55,506 psi | 85% | 2749 fps | 100% |
| IMR 4831 | <<locked>> | 86% | 55,956 psi | 86% | 2776 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 58,320 psi | 90% | 2822 fps | 99.1% |
| IMR 7828 SSC | <<locked>> | 94% | 55,854 psi | 86% | 2887 fps | 99.3% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 42,003 psi | 65% | 2677 fps | 97% |
| Lovex S065 | <<locked>> | 84% | 56,144 psi | 86% | 2749 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 57,812 psi | 89% | 2795 fps | 100% |
| Lovex S071 | <<locked>> | 98% | 55,593 psi | 86% | 2772 fps | 100% |
| Norma 204 | <<locked>> | 86% | 56,797 psi | 87% | 2825 fps | 99.7% |
| Norma 217ᴾ | <<locked>> | 100% | 42,337 psi | 65% | 2703 fps | 99% |
| Norma MRP | <<locked>> | 92% | 57,986 psi | 89% | 2920 fps | 100% |
| Norma URP | <<locked>> | 86% | 57,421 psi | 88% | 2812 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 56,782 psi | 87% | 2907 fps | 99.6% |
| Ramshot Hunter | <<locked>> | 86% | 56,449 psi | 87% | 2825 fps | 100% |
| Ramshot Magnum | <<locked>> | 96% | 55,056 psi | 85% | 2841 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,145 psi | 59% | 1788 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 55,550 psi | 85% | 2805 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 57,754 psi | 89% | 2887 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 58,813 psi | 90% | 3009 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 53,519 psi | 82% | 2900 fps | 98.3% |
| Rottweil R 904 | <<locked>> | 90% | 57,276 psi | 88% | 2808 fps | 99.3% |
| Rottweil R 905 | <<locked>> | 90% | 55,405 psi | 85% | 2822 fps | 99.7% |
| Rottweil R 907 | <<locked>> | 84% | 57,624 psi | 89% | 2782 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 84% | 56,144 psi | 86% | 2749 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 57,812 psi | 89% | 2795 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 58,363 psi | 90% | 2641 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 55,317 psi | 85% | 2703 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 58,784 psi | 90% | 2871 fps | 99.9% |
| Somchem S355 | <<locked>> | 82% | 58,668 psi | 90% | 2766 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 55,114 psi | 85% | 2749 fps | 98.6% |
| Somchem S365 | <<locked>> | 88% | 58,305 psi | 90% | 2815 fps | 100% |
| Somchem S385 | <<locked>> | 90% | 55,854 psi | 86% | 2792 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 82% | 56,144 psi | 86% | 2690 fps | 100% |
| Vihtavuori N160 | <<locked>> | 84% | 55,738 psi | 86% | 2756 fps | 100% |
| Vihtavuori N165 | <<locked>> | 94% | 55,390 psi | 85% | 2776 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 86% | 58,450 psi | 90% | 2812 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 58,015 psi | 89% | 2841 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 57,682 psi | 89% | 2920 fps | 99.1% |
| Vihtavuori N565 | <<locked>> | 98% | 57,638 psi | 89% | 2900 fps | 99.3% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 54,563 psi | 84% | 2900 fps | 98% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 58,784 psi | 90% | 2762 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 57,334 psi | 88% | 2838 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 96% | 57,827 psi | 89% | 2949 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 55,666 psi | 86% | 2789 fps | 99.7% |
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% | 36,434 psi | 56% | 2438 fps | 98.4% |
| Accurate 4350 | <<locked>> | 80% | 48,573 psi | 75% | 2677 fps | 100% |
| Accurate MAGPRO | 74.9 gr | 84% | 42,902 psi | 66% | 2657 fps | 95.5% |
| ADI AR 2209 | <<locked>> | 80% | 40,335 psi | 62% | 2556 fps | 97.2% |
| ADI AR 2213 | <<locked>> | 82% | 38,522 psi | 59% | 2546 fps | 95.2% |
| ADI AR 2217 | <<locked>> | 90% | 37,333 psi | 57% | 2520 fps | 95% |
| ADI AR 2225 | <<locked>> | 88% | 31,531 psi | 49% | 2421 fps | 95.8% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 40,814 psi | 63% | 2559 fps | 97.3% |
| Alliant Reloder-16 | <<locked>> | 80% | 46,398 psi | 71% | 2677 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 53,795 psi | 83% | 2792 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 40,437 psi | 62% | 2552 fps | 97.2% |
| Alliant Reloder-22 | <<locked>> | 80% | 36,260 psi | 56% | 2497 fps | 96% |
| Alliant Reloder-23 | <<locked>> | 80% | 34,954 psi | 54% | 2461 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 30,342 psi | 47% | 2375 fps | 97.1% |
| Alliant Reloder-26 | 72.1 gr | 80% | 38,522 psi | 59% | 2602 fps | 99.7% |
| Baschieri & Pellagri 109 | <<locked>> | 90% | 49,153 psi | 76% | 2697 fps | 95.3% |
| Bofors RP15 | <<locked>> | 82% | 36,085 psi | 56% | 2493 fps | 95.7% |
| Bofors RP30 | <<locked>> | 88% | 36,434 psi | 56% | 2530 fps | 95.2% |
| Bofors RP5 | <<locked>> | 80% | 36,260 psi | 56% | 2497 fps | 96% |
| Bofors RP7 | <<locked>> | 80% | 50,879 psi | 78% | 2677 fps | 99.7% |
| Hodgdon H1000 | <<locked>> | 86% | 35,549 psi | 55% | 2477 fps | 95% |
| Hodgdon H414 | <<locked>> | 80% | 49,966 psi | 77% | 2723 fps | 99.8% |
| Hodgdon H4350 | <<locked>> | 80% | 52,431 psi | 81% | 2736 fps | 99.5% |
| Hodgdon H4831 | <<locked>> | 82% | 41,220 psi | 63% | 2556 fps | 95.4% |
| Hodgdon H4831 SC | <<locked>> | 82% | 40,408 psi | 62% | 2536 fps | 95.2% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 43,845 psi | 67% | 2566 fps | 100% |
| Hodgdon Retumbo | 70.8 gr | 84% | 33,779 psi | 52% | 2513 fps | 95.5% |
| Hodgdon Superformance | <<locked>> | 80% | 49,908 psi | 77% | 2753 fps | 99.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,949 psi | 43% | 1558 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 46,108 psi | 71% | 2612 fps | 99.2% |
| IMR 4451 Enduron | <<locked>> | 80% | 52,112 psi | 80% | 2697 fps | 99.9% |
| IMR 4831 | <<locked>> | 80% | 46,151 psi | 71% | 2621 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 40,074 psi | 62% | 2497 fps | 95.3% |
| IMR 7828 SSC | <<locked>> | 84% | 39,827 psi | 61% | 2585 fps | 95.8% |
| IMR 8133 Enduron | <<locked>> | 96% | 36,941 psi | 57% | 2566 fps | 95.1% |
| Lovex S065 | <<locked>> | 80% | 49,632 psi | 76% | 2648 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 48,109 psi | 74% | 2644 fps | 99.7% |
| Lovex S071 | <<locked>> | 80% | 31,502 psi | 48% | 2320 fps | 96.9% |
| Norma 204 | <<locked>> | 80% | 46,398 psi | 71% | 2654 fps | 98.4% |
| Norma 217 | <<locked>> | 92% | 32,387 psi | 50% | 2470 fps | 95.7% |
| Norma MRP | <<locked>> | 80% | 38,014 psi | 58% | 2566 fps | 97.9% |
| Norma URP | <<locked>> | 80% | 47,500 psi | 73% | 2661 fps | 100% |
| Ramshot Grand | <<locked>> | 82% | 36,840 psi | 57% | 2533 fps | 95% |
| Ramshot Hunter | <<locked>> | 80% | 46,296 psi | 71% | 2661 fps | 99.8% |
| Ramshot Magnum | <<locked>> | 82% | 32,837 psi | 51% | 2415 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,558 psi | 44% | 1594 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 48,486 psi | 75% | 2697 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 46,688 psi | 72% | 2717 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 82% | 30,676 psi | 47% | 2425 fps | 95.1% |
| ReloadSwiss RS 80 | <<locked>> | 94% | 42,554 psi | 65% | 2700 fps | 95.6% |
| Rottweil R 904 | <<locked>> | 80% | 41,597 psi | 64% | 2536 fps | 96.4% |
| Rottweil R 905 | <<locked>> | 80% | 39,856 psi | 61% | 2539 fps | 97.2% |
| Rottweil R 907 | <<locked>> | 80% | 50,879 psi | 78% | 2677 fps | 99.7% |
| Shooters World Long Rifle | <<locked>> | 80% | 49,632 psi | 76% | 2648 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 48,109 psi | 74% | 2644 fps | 99.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 55,129 psi | 85% | 2598 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 48,559 psi | 75% | 2602 fps | 99.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 39,523 psi | 61% | 2536 fps | 97.1% |
| Somchem S355 | <<locked>> | 80% | 55,013 psi | 85% | 2717 fps | 100% |
| Somchem S361 | <<locked>> | 80% | 42,424 psi | 65% | 2530 fps | 95.8% |
| Somchem S365 | <<locked>> | 80% | 44,570 psi | 69% | 2615 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 40,335 psi | 62% | 2523 fps | 98.1% |
| Vihtavuori N150 | <<locked>> | 80% | 52,852 psi | 81% | 2644 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 48,863 psi | 75% | 2654 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 35,056 psi | 54% | 2402 fps | 96.2% |
| Vihtavuori N550 | <<locked>> | 80% | 48,269 psi | 74% | 2657 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 39,305 psi | 60% | 2536 fps | 99.9% |
| Vihtavuori N560 | <<locked>> | 82% | 40,973 psi | 63% | 2615 fps | 95.6% |
| Vihtavuori N565 | <<locked>> | 86% | 38,493 psi | 59% | 2549 fps | 95% |
| Vihtavuori N568 | <<locked>> | 94% | 44,063 psi | 68% | 2713 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 47,935 psi | 74% | 2612 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 50,183 psi | 77% | 2726 fps | 99.8% |
| Winchester StaBALL HD | <<locked>> | 80% | 31,285 psi | 48% | 2490 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 36,854 psi | 57% | 2451 fps | 96.1% |
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 74 powders for .300 PRC loaded with the .308 | 200gr | Frontier PH HPFB. Hodgdon Retumbo delivers the highest muzzle velocity at 3,009 fps; across all powders the maximum-charge window runs from 1,749 fps to 3,009 fps. ADI AR 2217 gives the best case fill at 100 %, and 74 of the 74 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 200.0 gr projectile in 0.308" calls for a 1:11.0 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, Alliant Reloder-26, Hodgdon Retumbo rank at the top here: for .300 PRC with the .308 | 200gr | Frontier PH HPFB 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.