Load Specifications
Load data in caliber .300 PRC with .308 | 250gr | Hornady A-TIP bullet and 70 powders. The key underlying parameters are shown in the table above.
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>> | 90% | 57,754 psi | 89% | 2507 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 58,682 psi | 90% | 2516 fps | 100% |
| Accurate High Country | <<locked>> | 86% | 55,767 psi | 86% | 2605 fps | 100% |
| Accurate MAGPRO | <<locked>> | 88% | 56,521 psi | 87% | 2612 fps | 99.8% |
| ADI AR 2209 | <<locked>> | 86% | 55,651 psi | 86% | 2536 fps | 100% |
| ADI AR 2213 | <<locked>> | 90% | 57,479 psi | 88% | 2605 fps | 100% |
| ADI AR 2217 | <<locked>> | 98% | 55,579 psi | 86% | 2582 fps | 100% |
| ADI AR 2218ᴾ | <<locked>> | 100% | 51,576 psi | 79% | 2631 fps | 98.3% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 53,679 psi | 83% | 2602 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 86% | 55,651 psi | 86% | 2533 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 82% | 56,057 psi | 86% | 2516 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 58,668 psi | 90% | 2572 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 90% | 57,827 psi | 89% | 2598 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 90% | 55,695 psi | 86% | 2507 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 94% | 55,492 psi | 85% | 2575 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 86% | 56,144 psi | 86% | 2592 fps | 100% |
| Alliant Reloder-33ᴾ | <<locked>> | 100% | 56,608 psi | 87% | 2677 fps | 99% |
| Alliant Reloder-50ᴾ | <<locked>> | 100% | 47,892 psi | 74% | 2543 fps | 97% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 57,725 psi | 89% | 2572 fps | 99.1% |
| Bofors RP15 | <<locked>> | 92% | 57,000 psi | 88% | 2589 fps | 100% |
| Bofors RP30 | <<locked>> | 96% | 55,201 psi | 85% | 2595 fps | 100% |
| Bofors RP5 | <<locked>> | 90% | 57,827 psi | 89% | 2598 fps | 100% |
| Hodgdon H1000 | <<locked>> | 96% | 57,188 psi | 88% | 2602 fps | 100% |
| Hodgdon H4831 | <<locked>> | 88% | 56,637 psi | 87% | 2543 fps | 99.9% |
| Hodgdon H4831 SC | <<locked>> | 88% | 55,724 psi | 86% | 2530 fps | 99.8% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 56,144 psi | 86% | 2448 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 96% | 58,320 psi | 90% | 2707 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,797 psi | 58% | 1555 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 58,088 psi | 89% | 2510 fps | 100% |
| IMR 4831 | <<locked>> | 84% | 58,682 psi | 90% | 2507 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 88% | 57,174 psi | 88% | 2520 fps | 99.9% |
| IMR 7828 SSC | <<locked>> | 90% | 55,695 psi | 86% | 2589 fps | 100% |
| IMR 7977 Enduron | <<locked>> | 94% | 55,506 psi | 85% | 2474 fps | 95.7% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 49,342 psi | 76% | 2536 fps | 99.8% |
| Lovex S065 | <<locked>> | 82% | 58,407 psi | 90% | 2480 fps | 100% |
| Lovex S070 | <<locked>> | 82% | 56,840 psi | 87% | 2487 fps | 100% |
| Lovex S071 | <<locked>> | 94% | 55,680 psi | 86% | 2480 fps | 100% |
| Norma 204 | <<locked>> | 82% | 55,593 psi | 86% | 2516 fps | 100% |
| Norma 217ᴾ | <<locked>> | 100% | 50,125 psi | 77% | 2556 fps | 100% |
| Norma MRP | <<locked>> | 88% | 57,740 psi | 89% | 2612 fps | 100% |
| Norma URP | <<locked>> | 82% | 56,753 psi | 87% | 2500 fps | 100% |
| Ramshot Grand | <<locked>> | 90% | 56,884 psi | 88% | 2612 fps | 100% |
| Ramshot Hunter | <<locked>> | 82% | 55,564 psi | 85% | 2513 fps | 100% |
| Ramshot Magnum | <<locked>> | 92% | 54,897 psi | 84% | 2546 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,740 psi | 60% | 1591 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 58,740 psi | 90% | 2539 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 57,159 psi | 88% | 2566 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 54,839 psi | 84% | 2648 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 58,305 psi | 90% | 2680 fps | 99.9% |
| Rottweil R 904 | <<locked>> | 86% | 56,318 psi | 87% | 2510 fps | 100% |
| Rottweil R 905 | <<locked>> | 88% | 58,566 psi | 90% | 2569 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 82% | 58,407 psi | 90% | 2480 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 56,840 psi | 87% | 2487 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 57,188 psi | 88% | 2444 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 58,160 psi | 89% | 2566 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 57,566 psi | 89% | 2507 fps | 99.9% |
| Somchem S365 | <<locked>> | 84% | 58,001 psi | 89% | 2500 fps | 100% |
| Somchem S385 | <<locked>> | 86% | 55,274 psi | 85% | 2493 fps | 100% |
| Vihtavuori N160 | <<locked>> | 82% | 58,276 psi | 90% | 2487 fps | 100% |
| Vihtavuori N165 | <<locked>> | 92% | 58,595 psi | 90% | 2530 fps | 100% |
| Vihtavuori N170 | <<locked>> | 96% | 57,159 psi | 88% | 2559 fps | 97.7% |
| Vihtavuori N550 | <<locked>> | 82% | 57,392 psi | 88% | 2497 fps | 100% |
| Vihtavuori N555 | <<locked>> | 88% | 57,783 psi | 89% | 2530 fps | 100% |
| Vihtavuori N560 | <<locked>> | 88% | 57,246 psi | 88% | 2615 fps | 99.9% |
| Vihtavuori N565 | <<locked>> | 94% | 57,841 psi | 89% | 2612 fps | 100% |
| Vihtavuori N568 | <<locked>> | 96% | 54,868 psi | 84% | 2621 fps | 99.5% |
| Vihtavuori N570 | <<locked>> | 98% | 56,028 psi | 86% | 2680 fps | 98.7% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 57,406 psi | 88% | 2448 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 90% | 55,071 psi | 85% | 2592 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 90% | 58,566 psi | 90% | 2539 fps | 100% |
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 80% | 41,611 psi | 64% | 2277 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 54,868 psi | 84% | 2467 fps | 100% |
| Accurate High Country | <<locked>> | 80% | 45,324 psi | 70% | 2441 fps | 99.3% |
| Accurate MAGPRO | <<locked>> | 80% | 42,917 psi | 66% | 2395 fps | 97.9% |
| ADI AR 2209 | <<locked>> | 80% | 45,542 psi | 70% | 2385 fps | 99.7% |
| ADI AR 2213 | <<locked>> | 80% | 40,930 psi | 63% | 2343 fps | 98.4% |
| ADI AR 2217 | <<locked>> | 80% | 30,560 psi | 47% | 2119 fps | 95.1% |
| ADI AR 2218 | <<locked>> | 94% | 41,669 psi | 64% | 2444 fps | 95.3% |
| ADI AR 2225 | <<locked>> | 80% | 27,876 psi | 43% | 2096 fps | 97.1% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 46,021 psi | 71% | 2388 fps | 99.7% |
| Alliant Reloder-16 | <<locked>> | 80% | 52,446 psi | 81% | 2470 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 45,585 psi | 70% | 2382 fps | 99.7% |
| Alliant Reloder-22 | <<locked>> | 80% | 41,597 psi | 64% | 2346 fps | 99.3% |
| Alliant Reloder-23 | <<locked>> | 80% | 40,379 psi | 62% | 2290 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 34,780 psi | 54% | 2241 fps | 99.9% |
| Alliant Reloder-26 | <<locked>> | 80% | 45,136 psi | 69% | 2438 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 92% | 42,148 psi | 65% | 2441 fps | 95.9% |
| Alliant Reloder-50 | <<locked>> | 96% | 41,394 psi | 64% | 2428 fps | 95% |
| Baschieri & Pellagri 109 | <<locked>> | 80% | 39,813 psi | 61% | 2267 fps | 95.1% |
| Bofors RP15 | <<locked>> | 80% | 38,725 psi | 60% | 2293 fps | 98.8% |
| Bofors RP30 | <<locked>> | 80% | 32,387 psi | 50% | 2188 fps | 96.4% |
| Bofors RP5 | <<locked>> | 80% | 41,597 psi | 64% | 2346 fps | 99.3% |
| Hodgdon H1000 | <<locked>> | 80% | 33,112 psi | 51% | 2185 fps | 97% |
| Hodgdon H4831 | <<locked>> | 80% | 43,497 psi | 67% | 2339 fps | 98.4% |
| Hodgdon H4831 SC | <<locked>> | 80% | 42,757 psi | 66% | 2326 fps | 98.2% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 49,385 psi | 76% | 2362 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 80% | 34,011 psi | 52% | 2280 fps | 98.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,297 psi | 44% | 1385 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 51,198 psi | 79% | 2415 fps | 100% |
| IMR 4831 | <<locked>> | 80% | 51,808 psi | 80% | 2418 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 44,585 psi | 69% | 2329 fps | 98.7% |
| IMR 7828 SSC | <<locked>> | 80% | 39,711 psi | 61% | 2326 fps | 98.2% |
| IMR 7977 Enduron | <<locked>> | 92% | 52,243 psi | 80% | 2428 fps | 95% |
| IMR 8133 Enduron | <<locked>> | 86% | 30,937 psi | 48% | 2178 fps | 95.5% |
| Lovex S065 | <<locked>> | 80% | 54,897 psi | 84% | 2434 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 53,374 psi | 82% | 2441 fps | 100% |
| Lovex S071 | <<locked>> | 80% | 35,940 psi | 55% | 2172 fps | 99.7% |
| Norma 204 | <<locked>> | 80% | 51,895 psi | 80% | 2464 fps | 100% |
| Norma 217 | <<locked>> | 80% | 25,498 psi | 39% | 2044 fps | 95% |
| Norma MRP | <<locked>> | 80% | 43,859 psi | 67% | 2408 fps | 100% |
| Norma URP | <<locked>> | 80% | 53,214 psi | 82% | 2454 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 39,537 psi | 61% | 2339 fps | 98.5% |
| Ramshot Hunter | <<locked>> | 80% | 51,938 psi | 80% | 2464 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 35,404 psi | 54% | 2234 fps | 98.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,022 psi | 45% | 1417 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 54,839 psi | 84% | 2493 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 53,258 psi | 82% | 2516 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 80% | 33,025 psi | 51% | 2260 fps | 99.1% |
| ReloadSwiss RS 80 | <<locked>> | 84% | 34,708 psi | 53% | 2280 fps | 95.6% |
| Rottweil R 904 | <<locked>> | 80% | 46,601 psi | 72% | 2365 fps | 99.3% |
| Rottweil R 905 | <<locked>> | 80% | 45,150 psi | 69% | 2372 fps | 99.7% |
| Shooters World Long Rifle | <<locked>> | 80% | 54,897 psi | 84% | 2434 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 53,374 psi | 82% | 2441 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 53,621 psi | 82% | 2398 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 44,802 psi | 69% | 2369 fps | 99.7% |
| Somchem S361 | <<locked>> | 80% | 47,253 psi | 73% | 2359 fps | 98.9% |
| Somchem S365 | <<locked>> | 80% | 50,778 psi | 78% | 2411 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 45,614 psi | 70% | 2352 fps | 99.9% |
| Vihtavuori N160 | <<locked>> | 80% | 54,650 psi | 84% | 2444 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 39,798 psi | 61% | 2251 fps | 99.3% |
| Vihtavuori N170 | <<locked>> | 90% | 46,978 psi | 72% | 2402 fps | 95.5% |
| Vihtavuori N550 | <<locked>> | 80% | 53,896 psi | 83% | 2451 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 44,831 psi | 69% | 2352 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 43,671 psi | 67% | 2405 fps | 98.6% |
| Vihtavuori N565 | <<locked>> | 80% | 36,274 psi | 56% | 2251 fps | 96.9% |
| Vihtavuori N568 | <<locked>> | 84% | 36,129 psi | 56% | 2293 fps | 95.5% |
| Vihtavuori N570 | <<locked>> | 90% | 42,308 psi | 65% | 2451 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 53,693 psi | 83% | 2405 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 80% | 37,927 psi | 58% | 2346 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 41,814 psi | 64% | 2293 fps | 99.3% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 70 powders for .300 PRC loaded with the .308 | 250gr | Hornady A-TIP. Hodgdon Retumbo delivers the highest muzzle velocity at 2,707 fps; across all powders the maximum-charge window runs from 1,555 fps to 2,707 fps. ADI AR 2218 gives the best case fill at 100 %, and 70 of the 70 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 250.0 gr projectile in 0.308" calls for a 1:8.5 twist; slower twists will usually not stabilise this weight. ADI AR 2218, ADI AR 2225, Alliant Reloder-33 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. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.