
Load Specifications
Load data in caliber .300 RCM with .308 | 200gr | Peregrine Bushmaster (VRG-3) bullet and 111 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Hodgdon Superformance and Alliant Reloder-17.
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.
A valid access license is required to use the Personalized Load Calculator.
You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 82% | 54,621 psi | 86% | 2477 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 57,043 psi | 89% | 2546 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 55,216 psi | 87% | 2569 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 56,072 psi | 88% | 2572 fps | 98.6% |
| Accurate 3100ᴾ | <<locked>> | 100% | 43,932 psi | 69% | 2487 fps | 98.2% |
| Accurate 4064 | <<locked>> | 90% | 57,043 psi | 89% | 2595 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 57,609 psi | 90% | 2697 fps | 100% |
| ADI AR 2206H | <<locked>> | 86% | 57,392 psi | 90% | 2631 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 55,042 psi | 86% | 2589 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 51,967 psi | 81% | 2631 fps | 97.2% |
| ADI Benchmark 8208 | <<locked>> | 84% | 56,463 psi | 88% | 2582 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 53,940 psi | 85% | 2503 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 57,609 psi | 90% | 2756 fps | 100% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 51,605 psi | 81% | 2628 fps | 97.3% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 51,605 psi | 81% | 2628 fps | 97.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 55,230 psi | 87% | 2608 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 55,753 psi | 87% | 2628 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 98% | 55,042 psi | 86% | 2700 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 94% | 56,246 psi | 88% | 2726 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 50,836 psi | 80% | 2618 fps | 97.2% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 44,585 psi | 70% | 2559 fps | 95.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 41,945 psi | 66% | 2516 fps | 99.9% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 36,738 psi | 58% | 2425 fps | 96.8% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 47,210 psi | 74% | 2680 fps | 99.7% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 57,392 psi | 90% | 2651 fps | 100% |
| Bofors RP3 | <<locked>> | 90% | 55,753 psi | 87% | 2621 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 44,585 psi | 70% | 2559 fps | 95.9% |
| Bofors RP7 | <<locked>> | 94% | 55,521 psi | 87% | 2602 fps | 98.7% |
| Hodgdon Benchmark | <<locked>> | 82% | 54,534 psi | 85% | 2516 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 55,738 psi | 87% | 2608 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 56,724 psi | 89% | 2641 fps | 100% |
| Hodgdon H414 | <<locked>> | 96% | 56,724 psi | 89% | 2697 fps | 99.3% |
| Hodgdon H4350 | <<locked>> | 94% | 56,942 psi | 89% | 2657 fps | 98.4% |
| Hodgdon H4895 | <<locked>> | 84% | 54,636 psi | 86% | 2595 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 54,766 psi | 86% | 2625 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 54,070 psi | 85% | 2625 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 57,290 psi | 90% | 2740 fps | 99.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,853 psi | 56% | 1568 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 55,593 psi | 87% | 2592 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 54,781 psi | 86% | 2569 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 54,607 psi | 86% | 2572 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 86% | 54,215 psi | 85% | 2556 fps | 98.9% |
| IMR 4350 | <<locked>> | 98% | 56,275 psi | 88% | 2635 fps | 98.8% |
| IMR 4451 Enduron | <<locked>> | 94% | 57,624 psi | 90% | 2631 fps | 99.2% |
| IMR 4831 | <<locked>> | 98% | 54,259 psi | 85% | 2638 fps | 100% |
| IMR 4895 | <<locked>> | 88% | 57,203 psi | 90% | 2654 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 56,463 psi | 88% | 2582 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 57,276 psi | 90% | 2602 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 56,840 psi | 89% | 2562 fps | 100% |
| Lovex S062 | <<locked>> | 90% | 57,725 psi | 90% | 2608 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 56,971 psi | 89% | 2625 fps | 99.8% |
| Lovex S070 | <<locked>> | 96% | 54,534 psi | 85% | 2615 fps | 99.1% |
| Lovex S071ᴾ | <<locked>> | 100% | 36,448 psi | 57% | 2349 fps | 96.3% |
| Norma 201 | <<locked>> | 86% | 55,854 psi | 88% | 2572 fps | 100% |
| Norma 202 | <<locked>> | 86% | 56,710 psi | 89% | 2572 fps | 100% |
| Norma 203B | <<locked>> | 88% | 54,940 psi | 86% | 2615 fps | 100% |
| Norma 204 | <<locked>> | 98% | 56,913 psi | 89% | 2684 fps | 98% |
| Norma MRPᴾ | <<locked>> | 100% | 47,021 psi | 74% | 2638 fps | 97.9% |
| Norma URP | <<locked>> | 98% | 56,550 psi | 89% | 2684 fps | 100% |
| Ramshot Big Game | <<locked>> | 88% | 55,579 psi | 87% | 2641 fps | 100% |
| Ramshot Hunter | <<locked>> | 98% | 55,056 psi | 86% | 2684 fps | 99.6% |
| Ramshot TAC | <<locked>> | 84% | 56,565 psi | 89% | 2612 fps | 99.8% |
| Ramshot Wild Boar | <<locked>> | 84% | 56,376 psi | 88% | 2621 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 57,029 psi | 89% | 2585 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,172 psi | 57% | 1604 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 56,739 psi | 89% | 2625 fps | 99.5% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 56,405 psi | 88% | 2690 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 56,014 psi | 88% | 2723 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 57,334 psi | 90% | 2720 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 56,623 psi | 89% | 2753 fps | 100% |
| Rottweil R 901 | <<locked>> | 84% | 56,666 psi | 89% | 2549 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 56,391 psi | 88% | 2572 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 55,622 psi | 87% | 2615 fps | 100% |
| Rottweil R 904ᴾ | <<locked>> | 100% | 53,766 psi | 84% | 2605 fps | 96.5% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 49,734 psi | 78% | 2602 fps | 97.2% |
| Rottweil R 907 | <<locked>> | 94% | 55,521 psi | 87% | 2602 fps | 98.7% |
| Shooters World Long Rifle | <<locked>> | 96% | 56,971 psi | 89% | 2625 fps | 99.8% |
| Shooters World Match Rifle | <<locked>> | 86% | 57,276 psi | 90% | 2602 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 57,725 psi | 90% | 2608 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 54,534 psi | 85% | 2615 fps | 99.1% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 57,508 psi | 90% | 2674 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 54,969 psi | 86% | 2589 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 55,724 psi | 87% | 2605 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 57,464 psi | 90% | 2513 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 54,462 psi | 85% | 2474 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 57,116 psi | 90% | 2582 fps | 99.2% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 49,255 psi | 77% | 2598 fps | 97% |
| Somchem S321 | <<locked>> | 82% | 57,508 psi | 90% | 2612 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 56,681 psi | 89% | 2510 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 54,824 psi | 86% | 2579 fps | 100% |
| Somchem S355 | <<locked>> | 92% | 55,796 psi | 87% | 2608 fps | 100% |
| Somchem S361ᴾ | <<locked>> | 100% | 55,608 psi | 87% | 2602 fps | 95.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 54,592 psi | 86% | 2680 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 50,459 psi | 79% | 2585 fps | 98% |
| Vihtavuori N130 | <<locked>> | 82% | 57,072 psi | 89% | 2470 fps | 100% |
| Vihtavuori N133 | <<locked>> | 84% | 54,418 psi | 85% | 2454 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 56,623 psi | 89% | 2533 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 57,246 psi | 90% | 2552 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 57,551 psi | 90% | 2592 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 55,230 psi | 87% | 2628 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 43,279 psi | 68% | 2454 fps | 95.9% |
| Vihtavuori N530 | <<locked>> | 84% | 56,855 psi | 89% | 2579 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 55,390 psi | 87% | 2556 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 54,143 psi | 85% | 2635 fps | 99.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 46,441 psi | 73% | 2582 fps | 99.9% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 55,390 psi | 87% | 2608 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 57,029 psi | 89% | 2625 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 56,724 psi | 89% | 2697 fps | 99.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 37,333 psi | 59% | 2539 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 86% | 55,738 psi | 87% | 2615 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 47,384 psi | 74% | 2526 fps | 96.2% |
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 2015 | <<locked>> | 80% | 51,329 psi | 80% | 2434 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 43,656 psi | 68% | 2372 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 51,634 psi | 81% | 2523 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 42,902 psi | 67% | 2365 fps | 96% |
| Accurate 3100 | <<locked>> | 92% | 33,315 psi | 52% | 2283 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 41,365 psi | 65% | 2375 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 30,560 psi | 48% | 2231 fps | 96% |
| ADI AR 2206H | <<locked>> | 80% | 47,398 psi | 74% | 2487 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 40,437 psi | 63% | 2356 fps | 99.1% |
| ADI AR 2209 | <<locked>> | 96% | 45,629 psi | 72% | 2526 fps | 95.7% |
| ADI Benchmark 8208 | <<locked>> | 80% | 49,545 psi | 78% | 2487 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 50,560 psi | 79% | 2464 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 43,627 psi | 68% | 2539 fps | 99.6% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 42,699 psi | 67% | 2477 fps | 95.1% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 42,699 psi | 67% | 2477 fps | 95.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 40,219 psi | 63% | 2375 fps | 99.8% |
| Alliant Reloder-15 | <<locked>> | 80% | 42,989 psi | 67% | 2434 fps | 99.5% |
| Alliant Reloder-16 | <<locked>> | 80% | 31,053 psi | 49% | 2247 fps | 96.3% |
| Alliant Reloder-17 | 48.7 gr | 80% | 34,708 psi | 54% | 2362 fps | 99% |
| Alliant Reloder-19 | <<locked>> | 94% | 42,163 psi | 66% | 2467 fps | 95% |
| Alliant Reloder-22 | <<locked>> | 98% | 41,669 psi | 65% | 2507 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 84% | 25,280 psi | 40% | 2116 fps | 95% |
| Alliant Reloder-25 | <<locked>> | 98% | 34,592 psi | 54% | 2372 fps | 95.9% |
| Alliant Reloder-26 | <<locked>> | 88% | 30,676 psi | 48% | 2323 fps | 95.2% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 47,007 psi | 74% | 2503 fps | 99.7% |
| Bofors RP3 | <<locked>> | 80% | 39,726 psi | 62% | 2379 fps | 99.8% |
| Bofors RP5 | <<locked>> | 98% | 41,669 psi | 65% | 2507 fps | 95% |
| Bofors RP7 | <<locked>> | 84% | 40,524 psi | 64% | 2359 fps | 95.7% |
| Hodgdon Benchmark | <<locked>> | 80% | 51,140 psi | 80% | 2470 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 48,820 psi | 77% | 2516 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 40,509 psi | 63% | 2385 fps | 98.4% |
| Hodgdon H414 | <<locked>> | 84% | 37,811 psi | 59% | 2385 fps | 95.6% |
| Hodgdon H4350 | <<locked>> | 84% | 41,394 psi | 65% | 2408 fps | 95.1% |
| Hodgdon H4895 | <<locked>> | 80% | 47,877 psi | 75% | 2497 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 28,456 psi | 45% | 2156 fps | 97% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 44,193 psi | 69% | 2480 fps | 100% |
| Hodgdon Superformance | 55.3 gr | 86% | 39,755 psi | 62% | 2448 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,513 psi | 42% | 1398 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 46,079 psi | 72% | 2454 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 48,182 psi | 76% | 2480 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 42,496 psi | 67% | 2385 fps | 99.5% |
| IMR 4166 Enduron | <<locked>> | 80% | 44,860 psi | 70% | 2408 fps | 97.3% |
| IMR 4350 | <<locked>> | 86% | 38,406 psi | 60% | 2339 fps | 95% |
| IMR 4451 Enduron | <<locked>> | 80% | 37,405 psi | 59% | 2293 fps | 95.2% |
| IMR 4831 | <<locked>> | 80% | 29,820 psi | 47% | 2195 fps | 95.8% |
| IMR 4895 | <<locked>> | 80% | 44,106 psi | 69% | 2461 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 80% | 49,545 psi | 78% | 2487 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 46,746 psi | 73% | 2464 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 47,326 psi | 74% | 2428 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 42,380 psi | 66% | 2385 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 34,621 psi | 54% | 2244 fps | 95.9% |
| Lovex S070 | <<locked>> | 84% | 37,275 psi | 58% | 2320 fps | 95.6% |
| Lovex S071 | <<locked>> | 98% | 34,113 psi | 53% | 2300 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 46,296 psi | 73% | 2438 fps | 100% |
| Norma 202 | <<locked>> | 80% | 46,978 psi | 74% | 2444 fps | 100% |
| Norma 203B | <<locked>> | 80% | 42,351 psi | 66% | 2425 fps | 99.7% |
| Norma 204 | <<locked>> | 90% | 43,323 psi | 68% | 2470 fps | 95.1% |
| Norma MRP | <<locked>> | 94% | 38,145 psi | 60% | 2467 fps | 95.4% |
| Norma URP | <<locked>> | 80% | 31,053 psi | 49% | 2234 fps | 96% |
| Ramshot Big Game | <<locked>> | 80% | 42,351 psi | 66% | 2444 fps | 99.6% |
| Ramshot Hunter | <<locked>> | 84% | 34,577 psi | 54% | 2323 fps | 95.4% |
| Ramshot TAC | <<locked>> | 80% | 49,617 psi | 78% | 2510 fps | 99.3% |
| Ramshot Wild Boar | <<locked>> | 80% | 49,211 psi | 77% | 2523 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 80% | 53,505 psi | 84% | 2539 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,876 psi | 42% | 1430 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 40,973 psi | 64% | 2372 fps | 97.1% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 45,788 psi | 72% | 2536 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 36,970 psi | 58% | 2418 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 30,327 psi | 48% | 2244 fps | 95.5% |
| ReloadSwiss RS 70 | 50.7 gr | 82% | 32,590 psi | 51% | 2306 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 80% | 50,270 psi | 79% | 2464 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 44,179 psi | 69% | 2398 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 37,376 psi | 59% | 2329 fps | 99.5% |
| Rottweil R 904 | <<locked>> | 98% | 50,531 psi | 79% | 2556 fps | 95.8% |
| Rottweil R 905 | <<locked>> | 96% | 43,511 psi | 68% | 2500 fps | 95.6% |
| Rottweil R 907 | <<locked>> | 84% | 40,524 psi | 64% | 2359 fps | 95.7% |
| Shooters World Long Rifle | <<locked>> | 80% | 34,621 psi | 54% | 2244 fps | 95.9% |
| Shooters World Match Rifle | <<locked>> | 80% | 46,746 psi | 73% | 2464 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 42,380 psi | 66% | 2385 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 37,275 psi | 58% | 2320 fps | 95.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 38,508 psi | 60% | 2379 fps | 99.2% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 47,863 psi | 75% | 2484 fps | 99.4% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 45,847 psi | 72% | 2461 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 47,659 psi | 75% | 2385 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 39,842 psi | 62% | 2267 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 36,187 psi | 57% | 2244 fps | 95% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 43,105 psi | 68% | 2493 fps | 95.5% |
| Somchem S321 | <<locked>> | 80% | 53,925 psi | 85% | 2566 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 47,195 psi | 74% | 2385 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 47,819 psi | 75% | 2480 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 38,159 psi | 60% | 2333 fps | 99.4% |
| Somchem S361 | <<locked>> | 98% | 52,054 psi | 82% | 2552 fps | 95.1% |
| Somchem S365 | <<locked>> | 80% | 27,818 psi | 44% | 2195 fps | 98.2% |
| Somchem S385 | <<locked>> | 92% | 38,696 psi | 61% | 2382 fps | 95.1% |
| Vihtavuori N130 | <<locked>> | 80% | 53,737 psi | 84% | 2431 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 48,153 psi | 75% | 2375 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 43,932 psi | 69% | 2369 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 44,382 psi | 70% | 2382 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 36,347 psi | 57% | 2274 fps | 99.8% |
| Vihtavuori N160 | <<locked>> | 80% | 32,416 psi | 51% | 2238 fps | 96.5% |
| Vihtavuori N165 | <<locked>> | 98% | 40,683 psi | 64% | 2408 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 80% | 49,719 psi | 78% | 2487 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 42,641 psi | 67% | 2375 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 31,836 psi | 50% | 2238 fps | 96.1% |
| Vihtavuori N555 | <<locked>> | 84% | 27,108 psi | 42% | 2182 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,140 psi | 50% | 2218 fps | 98.4% |
| Winchester 748 | <<locked>> | 80% | 49,893 psi | 78% | 2533 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 38,014 psi | 60% | 2388 fps | 95.7% |
| Winchester StaBALL HD | <<locked>> | 88% | 25,135 psi | 39% | 2182 fps | 95.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 45,716 psi | 72% | 2470 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 44,150 psi | 69% | 2470 fps | 95.4% |
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 111 powders for .300 RCM loaded with the .308 | 200gr | Peregrine Bushmaster (VRG-3). Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,756 fps; across all powders the maximum-charge window runs from 1,568 fps to 2,756 fps. Accurate 3100 gives the best case fill at 100 %, and 111 of the 111 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 200.0 gr projectile in 0.308" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, Alliant Power Pro Varmint 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. ReloadSwiss RS 70, Hodgdon Superformance, Alliant Reloder-17 rank at the top here: for .300 RCM with the .308 | 200gr | Peregrine Bushmaster (VRG-3) 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.