Load Specifications
Bullet Manufacturer:Peregrine
Bullet Weight:206 gr
Bullet Diameter:0.308"
Bullet Length:<<locked>>
Caliber:.300 RCM load data
Case Length (l3):2.09"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:75 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:24"
Max. allowed Pressure:63,817 psi
Recommended Twist Rate:1:12.5
Load data in caliber .300 RCM with .308 | 206gr | Peregrine Backup (VRG-2) bullet and 110 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% | 55,782 psi | 87% | 2451 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 54,592 psi | 86% | 2480 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 56,565 psi | 89% | 2546 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 57,305 psi | 90% | 2552 fps | 98.9% |
| Accurate 3100ᴾ | <<locked>> | 100% | 45,353 psi | 71% | 2474 fps | 98.7% |
| Accurate 4064 | <<locked>> | 88% | 55,042 psi | 86% | 2530 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 55,230 psi | 87% | 2628 fps | 100% |
| Accurate High Countryᴾ | <<locked>> | 100% | 49,922 psi | 78% | 2654 fps | 96.6% |
| ADI AR 2206H | <<locked>> | 84% | 55,230 psi | 87% | 2562 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 56,246 psi | 88% | 2566 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 53,301 psi | 84% | 2618 fps | 97.8% |
| ADI Benchmark 8208 | <<locked>> | 84% | 57,667 psi | 90% | 2559 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 55,274 psi | 87% | 2480 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 55,259 psi | 87% | 2684 fps | 100% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 52,968 psi | 83% | 2612 fps | 97.9% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 52,968 psi | 83% | 2612 fps | 97.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 56,550 psi | 89% | 2585 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 57,058 psi | 89% | 2608 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 98% | 56,492 psi | 89% | 2680 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 92% | 53,983 psi | 85% | 2657 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 52,185 psi | 82% | 2605 fps | 97.8% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 45,861 psi | 72% | 2549 fps | 96.7% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 43,178 psi | 68% | 2500 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 37,739 psi | 59% | 2418 fps | 97.6% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 48,747 psi | 76% | 2667 fps | 99.9% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 55,100 psi | 86% | 2585 fps | 100% |
| Bofors RP3 | <<locked>> | 90% | 57,188 psi | 90% | 2598 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 45,861 psi | 72% | 2549 fps | 96.7% |
| Bofors RP7 | <<locked>> | 94% | 56,782 psi | 89% | 2585 fps | 99.1% |
| Hodgdon Benchmark | <<locked>> | 82% | 55,593 psi | 87% | 2493 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 57,072 psi | 89% | 2589 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 54,346 psi | 85% | 2572 fps | 100% |
| Hodgdon H414 | <<locked>> | 94% | 54,462 psi | 85% | 2631 fps | 99.3% |
| Hodgdon H4350 | <<locked>> | 92% | 54,940 psi | 86% | 2595 fps | 98.4% |
| Hodgdon H4895 | <<locked>> | 84% | 55,854 psi | 88% | 2572 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 56,318 psi | 88% | 2605 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 55,463 psi | 87% | 2605 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 54,679 psi | 86% | 2671 fps | 99.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,969 psi | 56% | 1549 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 56,797 psi | 89% | 2569 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 56,130 psi | 88% | 2543 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 55,811 psi | 87% | 2549 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 86% | 55,317 psi | 87% | 2539 fps | 99.2% |
| IMR 4350 | <<locked>> | 98% | 57,624 psi | 90% | 2618 fps | 99.2% |
| IMR 4451 Enduron | <<locked>> | 92% | 55,506 psi | 87% | 2569 fps | 99.2% |
| IMR 4831 | <<locked>> | 98% | 55,767 psi | 87% | 2618 fps | 100% |
| IMR 4895 | <<locked>> | 86% | 54,853 psi | 86% | 2585 fps | 100% |
| IMR 4955 Enduronᴾ | <<locked>> | 100% | 53,026 psi | 83% | 2552 fps | 96.1% |
| IMR 8208 XBR | <<locked>> | 84% | 57,667 psi | 90% | 2559 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 54,911 psi | 86% | 2536 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 54,346 psi | 85% | 2493 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 55,608 psi | 87% | 2543 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 54,969 psi | 86% | 2562 fps | 99.8% |
| Lovex S070 | <<locked>> | 96% | 55,883 psi | 88% | 2595 fps | 99.4% |
| Lovex S071ᴾ | <<locked>> | 100% | 37,652 psi | 59% | 2339 fps | 97% |
| Norma 201 | <<locked>> | 86% | 57,087 psi | 89% | 2549 fps | 100% |
| Norma 202 | <<locked>> | 84% | 54,578 psi | 86% | 2510 fps | 100% |
| Norma 203B | <<locked>> | 88% | 56,246 psi | 88% | 2595 fps | 100% |
| Norma 204 | <<locked>> | 96% | 54,505 psi | 85% | 2615 fps | 97.9% |
| Norma MRPᴾ | <<locked>> | 100% | 48,428 psi | 76% | 2625 fps | 98.5% |
| Norma URP | <<locked>> | 96% | 54,259 psi | 85% | 2615 fps | 100% |
| Ramshot Big Game | <<locked>> | 88% | 57,000 psi | 89% | 2621 fps | 100% |
| Ramshot Hunter | <<locked>> | 98% | 56,579 psi | 89% | 2667 fps | 99.8% |
| Ramshot TAC | <<locked>> | 82% | 53,983 psi | 85% | 2539 fps | 99.8% |
| Ramshot Wild Boar | <<locked>> | 84% | 57,667 psi | 90% | 2602 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,318 psi | 57% | 1581 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 54,447 psi | 85% | 2556 fps | 99.5% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 54,056 psi | 85% | 2618 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 57,580 psi | 90% | 2700 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 55,172 psi | 86% | 2651 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 54,027 psi | 85% | 2680 fps | 100% |
| Rottweil R 901 | <<locked>> | 82% | 54,476 psi | 85% | 2484 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 57,624 psi | 90% | 2549 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 57,058 psi | 89% | 2592 fps | 100% |
| Rottweil R 904ᴾ | <<locked>> | 100% | 55,114 psi | 86% | 2592 fps | 97.1% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 51,184 psi | 80% | 2592 fps | 97.8% |
| Rottweil R 907 | <<locked>> | 94% | 56,782 psi | 89% | 2585 fps | 99.1% |
| Shooters World Long Rifle | <<locked>> | 94% | 54,969 psi | 86% | 2562 fps | 99.8% |
| Shooters World Match Rifle | <<locked>> | 84% | 54,911 psi | 86% | 2536 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 55,608 psi | 87% | 2543 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 55,883 psi | 88% | 2595 fps | 99.4% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 55,216 psi | 87% | 2605 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 56,275 psi | 88% | 2569 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 56,971 psi | 89% | 2582 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 55,100 psi | 86% | 2444 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 55,622 psi | 87% | 2448 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 54,955 psi | 86% | 2520 fps | 99.2% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 50,705 psi | 79% | 2585 fps | 97.7% |
| Somchem S335 | <<locked>> | 84% | 54,549 psi | 85% | 2444 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 56,115 psi | 88% | 2559 fps | 100% |
| Somchem S355 | <<locked>> | 92% | 57,130 psi | 90% | 2589 fps | 100% |
| Somchem S361ᴾ | <<locked>> | 100% | 57,000 psi | 89% | 2589 fps | 96.5% |
| Somchem S365ᴾ | <<locked>> | 100% | 56,333 psi | 88% | 2661 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 51,895 psi | 81% | 2572 fps | 98.5% |
| Vihtavuori N133 | <<locked>> | 84% | 55,535 psi | 87% | 2431 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 54,447 psi | 85% | 2470 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 55,100 psi | 86% | 2490 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 55,100 psi | 86% | 2523 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 56,695 psi | 89% | 2612 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 44,512 psi | 70% | 2444 fps | 96.7% |
| Vihtavuori N530 | <<locked>> | 82% | 54,360 psi | 85% | 2510 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 56,637 psi | 89% | 2533 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 55,579 psi | 87% | 2618 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 47,964 psi | 75% | 2569 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 56,811 psi | 89% | 2589 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 54,665 psi | 86% | 2556 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 54,462 psi | 85% | 2631 fps | 99.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 38,464 psi | 60% | 2533 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 86% | 57,072 psi | 89% | 2592 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 48,718 psi | 76% | 2513 fps | 96.9% |
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% | 52,446 psi | 82% | 2411 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 44,817 psi | 70% | 2352 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 52,895 psi | 83% | 2500 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 43,859 psi | 69% | 2352 fps | 96.7% |
| Accurate 3100 | <<locked>> | 90% | 32,024 psi | 50% | 2224 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 42,482 psi | 67% | 2356 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 31,531 psi | 49% | 2221 fps | 96.8% |
| Accurate High Country | <<locked>> | 98% | 46,340 psi | 73% | 2595 fps | 95.7% |
| ADI AR 2206H | <<locked>> | 80% | 48,457 psi | 76% | 2467 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 41,336 psi | 65% | 2339 fps | 99.4% |
| ADI AR 2209 | <<locked>> | 94% | 43,976 psi | 69% | 2464 fps | 95.7% |
| ADI Benchmark 8208 | <<locked>> | 80% | 50,618 psi | 79% | 2467 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 51,837 psi | 81% | 2438 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 44,759 psi | 70% | 2523 fps | 99.8% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 41,002 psi | 64% | 2411 fps | 95% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 41,002 psi | 64% | 2411 fps | 95% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 41,205 psi | 65% | 2359 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 80% | 44,034 psi | 69% | 2415 fps | 99.8% |
| Alliant Reloder-16 | <<locked>> | 80% | 31,836 psi | 50% | 2238 fps | 97.1% |
| Alliant Reloder-17 | 48.7 gr | 80% | 35,650 psi | 56% | 2349 fps | 99.4% |
| Alliant Reloder-19 | <<locked>> | 94% | 43,265 psi | 68% | 2457 fps | 95.7% |
| Alliant Reloder-22 | <<locked>> | 98% | 42,859 psi | 67% | 2497 fps | 95.8% |
| Alliant Reloder-23 | <<locked>> | 84% | 25,962 psi | 41% | 2110 fps | 96% |
| Alliant Reloder-25 | <<locked>> | 96% | 33,301 psi | 52% | 2313 fps | 95.9% |
| Alliant Reloder-26 | <<locked>> | 86% | 29,559 psi | 46% | 2264 fps | 95.2% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 48,138 psi | 75% | 2484 fps | 99.9% |
| Bofors RP3 | <<locked>> | 80% | 40,799 psi | 64% | 2362 fps | 100% |
| Bofors RP5 | <<locked>> | 98% | 42,859 psi | 67% | 2497 fps | 95.8% |
| Bofors RP7 | <<locked>> | 82% | 39,001 psi | 61% | 2297 fps | 95.6% |
| Hodgdon Benchmark | <<locked>> | 80% | 52,156 psi | 82% | 2448 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 50,009 psi | 78% | 2493 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 41,524 psi | 65% | 2372 fps | 98.8% |
| Hodgdon H414 | <<locked>> | 82% | 36,274 psi | 57% | 2320 fps | 95.5% |
| Hodgdon H4350 | <<locked>> | 82% | 39,682 psi | 62% | 2343 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 48,965 psi | 77% | 2477 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 29,225 psi | 46% | 2146 fps | 97.7% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 45,353 psi | 71% | 2461 fps | 100% |
| Hodgdon Superformance | 54 gr | 84% | 38,000 psi | 60% | 2382 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,614 psi | 42% | 1378 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 47,108 psi | 74% | 2434 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 49,400 psi | 77% | 2461 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 43,453 psi | 68% | 2369 fps | 99.7% |
| IMR 4166 Enduron | <<locked>> | 80% | 45,788 psi | 72% | 2392 fps | 97.9% |
| IMR 4350 | <<locked>> | 84% | 37,028 psi | 58% | 2280 fps | 95% |
| IMR 4451 Enduron | <<locked>> | 80% | 38,232 psi | 60% | 2280 fps | 95.9% |
| IMR 4831 | <<locked>> | 80% | 30,705 psi | 48% | 2185 fps | 96.5% |
| IMR 4895 | <<locked>> | 80% | 45,179 psi | 71% | 2441 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 49,951 psi | 78% | 2507 fps | 95.4% |
| IMR 8208 XBR | <<locked>> | 80% | 50,618 psi | 79% | 2467 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 47,935 psi | 75% | 2444 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 48,269 psi | 76% | 2408 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 43,381 psi | 68% | 2365 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 35,462 psi | 56% | 2231 fps | 96.6% |
| Lovex S070 | <<locked>> | 82% | 35,969 psi | 56% | 2260 fps | 95.5% |
| Lovex S071 | <<locked>> | 96% | 33,011 psi | 52% | 2244 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 47,326 psi | 74% | 2418 fps | 100% |
| Norma 202 | <<locked>> | 80% | 48,051 psi | 75% | 2421 fps | 100% |
| Norma 203B | <<locked>> | 80% | 43,381 psi | 68% | 2405 fps | 99.9% |
| Norma 204 | <<locked>> | 90% | 44,454 psi | 70% | 2457 fps | 95.8% |
| Norma MRP | <<locked>> | 92% | 36,724 psi | 58% | 2405 fps | 95.3% |
| Norma URP | <<locked>> | 80% | 31,952 psi | 50% | 2224 fps | 96.8% |
| Ramshot Big Game | <<locked>> | 80% | 43,468 psi | 68% | 2428 fps | 99.8% |
| Ramshot Hunter | <<locked>> | 82% | 33,199 psi | 52% | 2260 fps | 95.3% |
| Ramshot TAC | <<locked>> | 80% | 50,691 psi | 79% | 2490 fps | 99.5% |
| Ramshot Wild Boar | <<locked>> | 80% | 50,357 psi | 79% | 2503 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,992 psi | 42% | 1411 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 41,945 psi | 66% | 2359 fps | 97.6% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 47,036 psi | 74% | 2516 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 37,971 psi | 60% | 2405 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 31,256 psi | 49% | 2234 fps | 96.3% |
| ReloadSwiss RS 70 | 49.5 gr | 80% | 31,299 psi | 49% | 2244 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 51,329 psi | 80% | 2441 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 45,179 psi | 71% | 2379 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 38,392 psi | 60% | 2313 fps | 99.7% |
| Rottweil R 904 | <<locked>> | 96% | 48,428 psi | 76% | 2490 fps | 95.7% |
| Rottweil R 905 | <<locked>> | 94% | 41,771 psi | 65% | 2434 fps | 95.6% |
| Rottweil R 907 | <<locked>> | 82% | 39,001 psi | 61% | 2297 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 35,462 psi | 56% | 2231 fps | 96.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 47,935 psi | 75% | 2444 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 43,381 psi | 68% | 2365 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 35,969 psi | 56% | 2260 fps | 95.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 39,537 psi | 62% | 2362 fps | 99.5% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 49,008 psi | 77% | 2467 fps | 99.6% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 46,891 psi | 73% | 2441 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 48,646 psi | 76% | 2362 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 40,727 psi | 64% | 2247 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 37,086 psi | 58% | 2231 fps | 95.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 41,379 psi | 65% | 2431 fps | 95.4% |
| Somchem S335 | <<locked>> | 80% | 48,196 psi | 76% | 2362 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 48,965 psi | 77% | 2464 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 39,117 psi | 61% | 2316 fps | 99.7% |
| Somchem S361 | <<locked>> | 96% | 49,748 psi | 78% | 2484 fps | 95% |
| Somchem S365 | <<locked>> | 80% | 28,631 psi | 45% | 2185 fps | 98.8% |
| Somchem S385 | <<locked>> | 90% | 37,173 psi | 58% | 2323 fps | 95% |
| Vihtavuori N133 | <<locked>> | 80% | 49,153 psi | 77% | 2349 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 45,020 psi | 71% | 2349 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 45,411 psi | 71% | 2359 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 37,275 psi | 58% | 2257 fps | 99.9% |
| Vihtavuori N160 | <<locked>> | 80% | 33,315 psi | 52% | 2224 fps | 97.2% |
| Vihtavuori N165 | <<locked>> | 96% | 39,073 psi | 61% | 2346 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 80% | 50,836 psi | 80% | 2464 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 43,642 psi | 68% | 2356 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 32,721 psi | 51% | 2224 fps | 96.8% |
| Vihtavuori N555 | <<locked>> | 82% | 26,223 psi | 41% | 2129 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,938 psi | 52% | 2208 fps | 98.9% |
| Winchester 748 | <<locked>> | 80% | 51,126 psi | 80% | 2510 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 36,492 psi | 57% | 2323 fps | 95.6% |
| Winchester StaBALL HD | <<locked>> | 86% | 24,221 psi | 38% | 2126 fps | 95.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 46,847 psi | 73% | 2451 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 42,308 psi | 66% | 2408 fps | 95.3% |
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 110 powders for .300 RCM loaded with the .308 | 206gr | Peregrine Backup (VRG-2). ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,700 fps; across all powders the maximum-charge window runs from 1,549 fps to 2,700 fps. Accurate 3100 gives the best case fill at 100 %, and 110 of the 110 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 206.0 gr projectile in 0.308" calls for a 1:12.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate High Country, ADI AR 2209 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 | 206gr | Peregrine Backup (VRG-2) 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.