Load Specifications
Load data in caliber .300 PRC with .308 | 240gr | Woodleigh PP SN bullet and 60 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Vihtavuori N570, Hodgdon Retumbo and ReloadSwiss RS 76.
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>> | 88% | 56,376 psi | 87% | 2552 fps | 100% |
| Accurate MAGPRO | <<locked>> | 86% | 55,172 psi | 85% | 2654 fps | 99.6% |
| ADI AR 2209 | <<locked>> | 86% | 57,711 psi | 89% | 2631 fps | 100% |
| ADI AR 2213 | <<locked>> | 88% | 55,999 psi | 86% | 2648 fps | 100% |
| ADI AR 2217 | <<locked>> | 98% | 58,262 psi | 90% | 2684 fps | 100% |
| ADI AR 2218ᴾ | <<locked>> | 100% | 54,186 psi | 83% | 2740 fps | 98.7% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 56,579 psi | 87% | 2700 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 86% | 57,870 psi | 89% | 2628 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 82% | 58,175 psi | 89% | 2608 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 57,232 psi | 88% | 2621 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 88% | 56,434 psi | 87% | 2641 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 90% | 58,175 psi | 89% | 2598 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 94% | 58,218 psi | 90% | 2671 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 84% | 54,853 psi | 84% | 2635 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 98% | 55,637 psi | 86% | 2720 fps | 98.8% |
| Alliant Reloder-50ᴾ | <<locked>> | 100% | 51,082 psi | 79% | 2651 fps | 97.5% |
| Baschieri & Pellagri 109 | <<locked>> | 90% | 56,246 psi | 87% | 2615 fps | 98.9% |
| Bofors RP15 | <<locked>> | 90% | 55,637 psi | 86% | 2631 fps | 100% |
| Bofors RP30 | <<locked>> | 96% | 58,044 psi | 89% | 2697 fps | 100% |
| Bofors RP5 | <<locked>> | 88% | 56,434 psi | 87% | 2641 fps | 100% |
| Hodgdon H1000 | <<locked>> | 94% | 55,738 psi | 86% | 2648 fps | 100% |
| Hodgdon H4831 | <<locked>> | 86% | 55,056 psi | 85% | 2585 fps | 99.7% |
| Hodgdon H4831 SC | <<locked>> | 88% | 57,870 psi | 89% | 2625 fps | 99.9% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 58,001 psi | 89% | 2536 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 94% | 57,435 psi | 88% | 2759 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,753 psi | 58% | 1611 fps | 100% |
| IMR 4350 | <<locked>> | 82% | 56,347 psi | 87% | 2552 fps | 100% |
| IMR 4831 | <<locked>> | 82% | 57,072 psi | 88% | 2552 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 86% | 55,680 psi | 86% | 2566 fps | 99.8% |
| IMR 7828 SSC | <<locked>> | 90% | 58,175 psi | 89% | 2687 fps | 100% |
| IMR 7977 Enduron | <<locked>> | 94% | 57,566 psi | 89% | 2569 fps | 96.1% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 51,967 psi | 80% | 2631 fps | 99.9% |
| Lovex S070 | <<locked>> | 82% | 58,566 psi | 90% | 2575 fps | 100% |
| Lovex S071 | <<locked>> | 94% | 57,928 psi | 89% | 2572 fps | 100% |
| Norma 204 | <<locked>> | 82% | 57,450 psi | 88% | 2608 fps | 100% |
| Norma 217ᴾ | <<locked>> | 100% | 53,098 psi | 82% | 2654 fps | 100% |
| Norma MRP | <<locked>> | 86% | 56,333 psi | 87% | 2654 fps | 100% |
| Norma URP | <<locked>> | 82% | 58,639 psi | 90% | 2589 fps | 100% |
| Ramshot Grand | <<locked>> | 88% | 55,535 psi | 85% | 2654 fps | 100% |
| Ramshot Hunter | <<locked>> | 82% | 57,435 psi | 88% | 2602 fps | 100% |
| Ramshot Magnum | <<locked>> | 92% | 57,711 psi | 89% | 2644 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,827 psi | 60% | 1650 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 58,001 psi | 89% | 2749 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 96% | 57,261 psi | 88% | 2726 fps | 99.9% |
| Rottweil R 904 | <<locked>> | 86% | 58,102 psi | 89% | 2602 fps | 100% |
| Rottweil R 905 | <<locked>> | 86% | 56,985 psi | 88% | 2615 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 58,566 psi | 90% | 2575 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 56,579 psi | 87% | 2608 fps | 100% |
| Somchem S361 | <<locked>> | 84% | 55,738 psi | 86% | 2549 fps | 99.8% |
| Somchem S365 | <<locked>> | 82% | 56,507 psi | 87% | 2546 fps | 100% |
| Somchem S385 | <<locked>> | 86% | 57,348 psi | 88% | 2585 fps | 100% |
| Vihtavuori N165 | <<locked>> | 90% | 57,159 psi | 88% | 2575 fps | 100% |
| Vihtavuori N170 | <<locked>> | 94% | 55,825 psi | 86% | 2602 fps | 97.4% |
| Vihtavuori N555 | <<locked>> | 86% | 56,507 psi | 87% | 2579 fps | 100% |
| Vihtavuori N560 | <<locked>> | 86% | 55,811 psi | 86% | 2661 fps | 99.9% |
| Vihtavuori N565 | <<locked>> | 92% | 56,637 psi | 87% | 2657 fps | 99.9% |
| Vihtavuori N568 | <<locked>> | 96% | 58,001 psi | 89% | 2726 fps | 99.7% |
| Vihtavuori N570 | <<locked>> | 96% | 55,071 psi | 85% | 2726 fps | 98.4% |
| Winchester StaBALL HD | <<locked>> | 90% | 58,349 psi | 90% | 2690 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 88% | 57,087 psi | 88% | 2585 fps | 100% |
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% | 43,352 psi | 67% | 2362 fps | 100% |
| Accurate MAGPRO | <<locked>> | 80% | 44,860 psi | 69% | 2487 fps | 98.2% |
| ADI AR 2209 | <<locked>> | 80% | 47,355 psi | 73% | 2477 fps | 99.8% |
| ADI AR 2213 | <<locked>> | 80% | 42,540 psi | 65% | 2431 fps | 98.6% |
| ADI AR 2217 | <<locked>> | 80% | 31,749 psi | 49% | 2201 fps | 95.5% |
| ADI AR 2218 | <<locked>> | 94% | 43,743 psi | 67% | 2546 fps | 96% |
| ADI AR 2225 | <<locked>> | 80% | 29,080 psi | 45% | 2175 fps | 97.5% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 47,718 psi | 73% | 2477 fps | 99.8% |
| Alliant Reloder-16 | <<locked>> | 80% | 54,462 psi | 84% | 2562 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 47,297 psi | 73% | 2470 fps | 99.8% |
| Alliant Reloder-22 | <<locked>> | 80% | 43,279 psi | 67% | 2434 fps | 99.5% |
| Alliant Reloder-23 | <<locked>> | 80% | 42,148 psi | 65% | 2375 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 36,434 psi | 56% | 2329 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 80% | 47,514 psi | 73% | 2530 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 90% | 41,611 psi | 64% | 2480 fps | 95.5% |
| Alliant Reloder-50 | <<locked>> | 96% | 44,092 psi | 68% | 2526 fps | 95.7% |
| Baschieri & Pellagri 109 | <<locked>> | 80% | 41,205 psi | 63% | 2356 fps | 95.5% |
| Bofors RP15 | <<locked>> | 80% | 40,306 psi | 62% | 2379 fps | 98.9% |
| Bofors RP30 | <<locked>> | 80% | 34,011 psi | 52% | 2274 fps | 96.7% |
| Bofors RP5 | <<locked>> | 80% | 43,279 psi | 67% | 2434 fps | 99.5% |
| Hodgdon H1000 | <<locked>> | 80% | 34,432 psi | 53% | 2267 fps | 97.3% |
| Hodgdon H4831 | <<locked>> | 80% | 45,208 psi | 70% | 2428 fps | 98.6% |
| Hodgdon H4831 SC | <<locked>> | 80% | 44,353 psi | 68% | 2415 fps | 98.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 51,285 psi | 79% | 2448 fps | 100% |
| Hodgdon Retumbo | 68.3 gr | 80% | 35,563 psi | 55% | 2369 fps | 98.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,398 psi | 44% | 1437 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 52,939 psi | 81% | 2507 fps | 100% |
| IMR 4831 | <<locked>> | 80% | 53,534 psi | 82% | 2507 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 46,137 psi | 71% | 2415 fps | 98.9% |
| IMR 7828 SSC | <<locked>> | 80% | 41,408 psi | 64% | 2418 fps | 98.5% |
| IMR 7977 Enduron | <<locked>> | 92% | 53,983 psi | 83% | 2516 fps | 95.4% |
| IMR 8133 Enduron | <<locked>> | 86% | 32,619 psi | 50% | 2264 fps | 96% |
| Lovex S070 | <<locked>> | 80% | 54,998 psi | 85% | 2526 fps | 100% |
| Lovex S071 | <<locked>> | 80% | 37,492 psi | 58% | 2254 fps | 99.8% |
| Norma 204 | <<locked>> | 80% | 53,853 psi | 83% | 2559 fps | 100% |
| Norma 217 | <<locked>> | 80% | 26,774 psi | 41% | 2126 fps | 95.4% |
| Norma MRP | <<locked>> | 80% | 45,861 psi | 71% | 2497 fps | 100% |
| Norma URP | <<locked>> | 80% | 54,984 psi | 85% | 2539 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 41,336 psi | 64% | 2428 fps | 98.8% |
| Ramshot Hunter | <<locked>> | 80% | 53,954 psi | 83% | 2556 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 37,072 psi | 57% | 2320 fps | 99% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,109 psi | 45% | 1470 fps | 100% |
| ReloadSwiss RS 76 | 73.1 gr | 80% | 34,621 psi | 53% | 2346 fps | 99.3% |
| ReloadSwiss RS 80 | <<locked>> | 82% | 34,069 psi | 52% | 2310 fps | 95% |
| Rottweil R 904 | <<locked>> | 80% | 48,124 psi | 74% | 2451 fps | 99.4% |
| Rottweil R 905 | <<locked>> | 80% | 46,992 psi | 72% | 2464 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 80% | 54,998 psi | 85% | 2526 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 46,644 psi | 72% | 2461 fps | 99.8% |
| Somchem S361 | <<locked>> | 80% | 48,936 psi | 75% | 2448 fps | 99.1% |
| Somchem S365 | <<locked>> | 80% | 52,881 psi | 81% | 2500 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 47,224 psi | 73% | 2438 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 41,379 psi | 64% | 2333 fps | 99.5% |
| Vihtavuori N170 | <<locked>> | 88% | 45,788 psi | 70% | 2441 fps | 95% |
| Vihtavuori N555 | <<locked>> | 80% | 46,673 psi | 72% | 2441 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 45,571 psi | 70% | 2497 fps | 98.8% |
| Vihtavuori N565 | <<locked>> | 80% | 37,913 psi | 58% | 2336 fps | 97.2% |
| Vihtavuori N568 | <<locked>> | 84% | 38,087 psi | 59% | 2385 fps | 96% |
| Vihtavuori N570 | 78 gr | 88% | 41,524 psi | 64% | 2487 fps | 95% |
| Winchester StaBALL HD | <<locked>> | 80% | 40,263 psi | 62% | 2434 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 43,468 psi | 67% | 2379 fps | 99.4% |
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 60 powders for .300 PRC loaded with the .308 | 240gr | Woodleigh PP SN. Hodgdon Retumbo delivers the highest muzzle velocity at 2,759 fps; across all powders the maximum-charge window runs from 1,611 fps to 2,759 fps. ADI AR 2218 gives the best case fill at 100 %, and 60 of the 60 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (448 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 240.0 gr projectile in 0.308" calls for a 1:12.5 twist; slower twists will usually not stabilise this weight. ADI AR 2218, ADI AR 2225, Alliant Reloder-50 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. Vihtavuori N570, Hodgdon Retumbo, ReloadSwiss RS 76 rank at the top here: for .300 PRC with the .308 | 240gr | Woodleigh PP SN 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.