Load Specifications
Load data in caliber .300 PRC with .308 | 212gr | Barnes LRX BT Bore Rider bullet and 75 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Winchester StaBALL HD, Vihtavuori N560 and Norma MRP.
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% | 56,072 psi | 86% | 2690 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 57,566 psi | 89% | 2717 fps | 100% |
| Accurate MAGPRO | <<locked>> | 94% | 58,508 psi | 90% | 2841 fps | 99% |
| ADI AR 2208 | <<locked>> | 82% | 58,189 psi | 90% | 2667 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 58,262 psi | 90% | 2776 fps | 99.9% |
| ADI AR 2213 | <<locked>> | 94% | 55,869 psi | 86% | 2782 fps | 99.3% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 50,227 psi | 77% | 2694 fps | 98.8% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 44,701 psi | 69% | 2657 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 88% | 58,523 psi | 90% | 2766 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 55,767 psi | 86% | 2726 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 57,725 psi | 89% | 2766 fps | 99.9% |
| Alliant Reloder-22 | <<locked>> | 94% | 55,927 psi | 86% | 2779 fps | 99.8% |
| Alliant Reloder-23 | <<locked>> | 96% | 57,305 psi | 88% | 2746 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 56,565 psi | 87% | 2808 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 57,754 psi | 89% | 2838 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 96% | 57,334 psi | 88% | 2746 fps | 97.3% |
| Bofors RP15 | <<locked>> | 98% | 58,624 psi | 90% | 2818 fps | 99.9% |
| Bofors RP30ᴾ | <<locked>> | 100% | 52,475 psi | 81% | 2759 fps | 99.3% |
| Bofors RP5 | <<locked>> | 94% | 55,927 psi | 86% | 2779 fps | 99.8% |
| Bofors RP7 | <<locked>> | 84% | 56,028 psi | 86% | 2664 fps | 100% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 55,347 psi | 85% | 2772 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 84% | 55,564 psi | 85% | 2720 fps | 100% |
| Hodgdon H4350 | <<locked>> | 84% | 58,160 psi | 89% | 2730 fps | 99.9% |
| Hodgdon H4831 | <<locked>> | 92% | 55,767 psi | 86% | 2723 fps | 98.8% |
| Hodgdon H4831 SC | <<locked>> | 94% | 58,436 psi | 90% | 2762 fps | 99.1% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 58,566 psi | 90% | 2690 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 55,361 psi | 85% | 2884 fps | 100% |
| Hodgdon Superformance | <<locked>> | 84% | 55,869 psi | 86% | 2756 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,188 psi | 57% | 1667 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 57,711 psi | 89% | 2707 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 84% | 57,595 psi | 89% | 2687 fps | 100% |
| IMR 4831 | <<locked>> | 88% | 57,754 psi | 89% | 2707 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 56,855 psi | 87% | 2707 fps | 99% |
| IMR 7828 SSC | <<locked>> | 96% | 57,609 psi | 89% | 2822 fps | 99.5% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 40,306 psi | 62% | 2566 fps | 96.8% |
| Lovex S065 | <<locked>> | 86% | 58,320 psi | 90% | 2684 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 56,463 psi | 87% | 2684 fps | 100% |
| Lovex S071ᴾ | <<locked>> | 100% | 57,276 psi | 88% | 2707 fps | 100% |
| Norma 204 | <<locked>> | 86% | 55,100 psi | 85% | 2707 fps | 99.6% |
| Norma 217ᴾ | <<locked>> | 100% | 40,364 psi | 62% | 2589 fps | 98.8% |
| Norma MRP | <<locked>> | 92% | 55,912 psi | 86% | 2802 fps | 100% |
| Norma URP | <<locked>> | 86% | 55,956 psi | 86% | 2700 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 58,668 psi | 90% | 2844 fps | 99.8% |
| Ramshot Hunter | <<locked>> | 88% | 58,334 psi | 90% | 2759 fps | 100% |
| Ramshot Magnum | <<locked>> | 98% | 56,840 psi | 87% | 2776 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,029 psi | 59% | 1706 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 57,551 psi | 89% | 2740 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 55,883 psi | 86% | 2769 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 56,028 psi | 86% | 2881 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 50,908 psi | 78% | 2776 fps | 98.1% |
| Rottweil R 903 | <<locked>> | 82% | 57,595 psi | 89% | 2661 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 55,680 psi | 86% | 2694 fps | 99.2% |
| Rottweil R 905 | <<locked>> | 92% | 57,203 psi | 88% | 2756 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 84% | 56,028 psi | 86% | 2664 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 86% | 58,320 psi | 90% | 2684 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 56,463 psi | 87% | 2684 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 57,116 psi | 88% | 2530 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 57,551 psi | 89% | 2644 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 56,768 psi | 87% | 2749 fps | 99.9% |
| Somchem S355 | <<locked>> | 82% | 57,145 psi | 88% | 2654 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 57,232 psi | 88% | 2690 fps | 98.9% |
| Somchem S365 | <<locked>> | 88% | 56,434 psi | 87% | 2703 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 57,827 psi | 89% | 2730 fps | 100% |
| Vihtavuori N150 | <<locked>> | 84% | 58,262 psi | 90% | 2625 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 57,653 psi | 89% | 2690 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 57,261 psi | 88% | 2713 fps | 100% |
| Vihtavuori N550 | <<locked>> | 86% | 56,840 psi | 87% | 2697 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 55,985 psi | 86% | 2723 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 55,666 psi | 86% | 2799 fps | 99% |
| Vihtavuori N565 | <<locked>> | 98% | 55,405 psi | 85% | 2779 fps | 99.1% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 52,083 psi | 80% | 2779 fps | 97.8% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 57,058 psi | 88% | 2651 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 55,564 psi | 85% | 2720 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 96% | 55,056 psi | 85% | 2828 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 57,696 psi | 89% | 2726 fps | 99.8% |
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% | 35,172 psi | 54% | 2333 fps | 98.3% |
| Accurate 4350 | <<locked>> | 80% | 46,992 psi | 72% | 2562 fps | 100% |
| Accurate MAGPRO | <<locked>> | 84% | 41,394 psi | 64% | 2549 fps | 95.3% |
| ADI AR 2208 | <<locked>> | 80% | 54,781 psi | 84% | 2621 fps | 100% |
| ADI AR 2209 | <<locked>> | 80% | 39,204 psi | 60% | 2451 fps | 97.1% |
| ADI AR 2213 | <<locked>> | 82% | 37,405 psi | 58% | 2441 fps | 95.1% |
| ADI AR 2217 | <<locked>> | 92% | 38,493 psi | 59% | 2467 fps | 95.8% |
| ADI AR 2225 | <<locked>> | 88% | 30,414 psi | 47% | 2320 fps | 95.6% |
| Alliant Reloder-16 | <<locked>> | 80% | 45,049 psi | 69% | 2569 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 52,098 psi | 80% | 2677 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 39,175 psi | 60% | 2448 fps | 97.2% |
| Alliant Reloder-22 | <<locked>> | 80% | 35,056 psi | 54% | 2395 fps | 95.9% |
| Alliant Reloder-23 | <<locked>> | 80% | 33,852 psi | 52% | 2362 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 29,414 psi | 45% | 2280 fps | 97.1% |
| Alliant Reloder-26 | <<locked>> | 80% | 36,985 psi | 57% | 2493 fps | 99.7% |
| Baschieri & Pellagri 109 | <<locked>> | 90% | 47,732 psi | 73% | 2585 fps | 95.1% |
| Bofors RP15 | <<locked>> | 82% | 34,925 psi | 54% | 2388 fps | 95.7% |
| Bofors RP30 | <<locked>> | 88% | 35,070 psi | 54% | 2428 fps | 95% |
| Bofors RP5 | <<locked>> | 80% | 35,056 psi | 54% | 2395 fps | 95.9% |
| Bofors RP7 | <<locked>> | 80% | 49,588 psi | 76% | 2566 fps | 99.6% |
| Hodgdon H1000 | <<locked>> | 88% | 36,767 psi | 57% | 2431 fps | 95.9% |
| Hodgdon H414 | <<locked>> | 80% | 48,704 psi | 75% | 2615 fps | 99.8% |
| Hodgdon H4350 | <<locked>> | 80% | 51,082 psi | 79% | 2625 fps | 99.5% |
| Hodgdon H4831 | <<locked>> | 82% | 39,914 psi | 61% | 2448 fps | 95.3% |
| Hodgdon H4831 SC | <<locked>> | 82% | 39,218 psi | 60% | 2434 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 42,554 psi | 65% | 2461 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 84% | 32,692 psi | 50% | 2411 fps | 95.4% |
| Hodgdon Superformance | <<locked>> | 80% | 48,196 psi | 74% | 2641 fps | 99.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,949 psi | 43% | 1490 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 44,976 psi | 69% | 2503 fps | 99.1% |
| IMR 4451 Enduron | <<locked>> | 80% | 50,894 psi | 78% | 2589 fps | 99.9% |
| IMR 4831 | <<locked>> | 80% | 44,672 psi | 69% | 2513 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 39,059 psi | 60% | 2395 fps | 95.3% |
| IMR 7828 SSC | <<locked>> | 84% | 38,421 psi | 59% | 2477 fps | 95.6% |
| IMR 8133 Enduron | <<locked>> | 98% | 37,768 psi | 58% | 2510 fps | 95.9% |
| Lovex S065 | <<locked>> | 80% | 48,501 psi | 75% | 2539 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 46,891 psi | 72% | 2536 fps | 99.7% |
| Lovex S071 | <<locked>> | 80% | 30,458 psi | 47% | 2224 fps | 96.8% |
| Norma 204 | <<locked>> | 80% | 45,092 psi | 69% | 2546 fps | 98.4% |
| Norma 217 | <<locked>> | 92% | 31,096 psi | 48% | 2369 fps | 95.5% |
| Norma MRP | 64.9 gr | 80% | 36,593 psi | 56% | 2457 fps | 97.9% |
| Norma URP | <<locked>> | 80% | 46,166 psi | 71% | 2552 fps | 100% |
| Ramshot Grand | <<locked>> | 84% | 38,072 psi | 59% | 2484 fps | 95.9% |
| Ramshot Hunter | <<locked>> | 80% | 44,962 psi | 69% | 2552 fps | 99.8% |
| Ramshot Magnum | <<locked>> | 82% | 31,589 psi | 49% | 2313 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,587 psi | 44% | 1526 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 46,920 psi | 72% | 2585 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 45,107 psi | 69% | 2605 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 84% | 31,662 psi | 49% | 2385 fps | 96.2% |
| ReloadSwiss RS 80 | <<locked>> | 94% | 40,669 psi | 63% | 2585 fps | 95.3% |
| Rottweil R 903 | <<locked>> | 80% | 54,143 psi | 83% | 2615 fps | 100% |
| Rottweil R 904 | <<locked>> | 80% | 40,625 psi | 63% | 2434 fps | 96.4% |
| Rottweil R 905 | <<locked>> | 80% | 38,667 psi | 59% | 2434 fps | 97.2% |
| Rottweil R 907 | <<locked>> | 80% | 49,588 psi | 76% | 2566 fps | 99.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 48,501 psi | 75% | 2539 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 46,891 psi | 72% | 2536 fps | 99.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 53,925 psi | 83% | 2490 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 47,471 psi | 73% | 2493 fps | 99.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 38,334 psi | 59% | 2431 fps | 97.1% |
| Somchem S355 | <<locked>> | 80% | 53,780 psi | 83% | 2608 fps | 100% |
| Somchem S361 | <<locked>> | 80% | 41,162 psi | 63% | 2425 fps | 95.7% |
| Somchem S365 | <<locked>> | 80% | 43,178 psi | 66% | 2510 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 39,146 psi | 60% | 2418 fps | 98% |
| Vihtavuori N150 | <<locked>> | 80% | 51,517 psi | 79% | 2536 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 47,427 psi | 73% | 2543 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 33,881 psi | 52% | 2300 fps | 96.1% |
| Vihtavuori N550 | <<locked>> | 80% | 46,862 psi | 72% | 2549 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 37,956 psi | 58% | 2431 fps | 99.9% |
| Vihtavuori N560 | 66.6 gr | 82% | 39,552 psi | 61% | 2507 fps | 95.5% |
| Vihtavuori N565 | <<locked>> | 88% | 39,581 psi | 61% | 2500 fps | 95.8% |
| Vihtavuori N568 | <<locked>> | 94% | 42,192 psi | 65% | 2598 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 46,543 psi | 72% | 2507 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 48,704 psi | 75% | 2615 fps | 99.8% |
| Winchester StaBALL HD | 64.3 gr | 80% | 30,081 psi | 46% | 2385 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 35,795 psi | 55% | 2349 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 80 powders for .300 PRC loaded with the .308 | 212gr | Barnes LRX BT Bore Rider. Hodgdon Retumbo delivers the highest muzzle velocity at 2,884 fps; across all powders the maximum-charge window runs from 1,667 fps to 2,884 fps. ADI AR 2217 gives the best case fill at 100 %, and 80 of the 80 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 212.0 gr projectile in 0.308" calls for a 1:8.5 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2218, ADI AR 2225 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. Winchester StaBALL HD, Vihtavuori N560, Norma MRP rank at the top here: for .300 PRC with the .308 | 212gr | Barnes LRX BT Bore Rider they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2218, Alliant Reloder-33, IMR 7977 Enduron burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.