Load Specifications
Load data in caliber .308 Win. Ackley Improved with .308 | 181gr | RWS H-Mantel bullet and 92 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 2000-MR, ReloadSwiss RS 52 and Hodgdon CFE223.
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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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>> | 90% | 53,388 psi | 89% | 2493 fps | 100% |
| Accurate 2200 | <<locked>> | 82% | 53,780 psi | 89% | 2575 fps | 98.8% |
| Accurate 2460 | <<locked>> | 86% | 51,982 psi | 86% | 2516 fps | 100% |
| Accurate 2495 | <<locked>> | 96% | 53,359 psi | 89% | 2546 fps | 100% |
| Accurate 2520 | <<locked>> | 90% | 53,098 psi | 88% | 2569 fps | 100% |
| Accurate 4064 | <<locked>> | 98% | 52,924 psi | 88% | 2579 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 41,727 psi | 69% | 2477 fps | 96.3% |
| Accurate LT-30 | <<locked>> | 84% | 53,838 psi | 89% | 2444 fps | 100% |
| Accurate LT-32 | <<locked>> | 84% | 54,244 psi | 90% | 2464 fps | 100% |
| ADI AR 2206H | <<locked>> | 92% | 52,185 psi | 87% | 2569 fps | 99.2% |
| ADI AR 2208 | <<locked>> | 98% | 53,272 psi | 89% | 2566 fps | 98.8% |
| ADI AR 2219 | <<locked>> | 84% | 53,853 psi | 89% | 2552 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 90% | 51,793 psi | 86% | 2533 fps | 99.7% |
| Alliant AR-Comp | <<locked>> | 90% | 51,126 psi | 85% | 2523 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 86% | 53,214 psi | 88% | 2628 fps | 99.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 94% | 51,517 psi | 86% | 2661 fps | 98.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 98% | 52,170 psi | 87% | 2585 fps | 99.7% |
| Alliant Reloder-10x | <<locked>> | 86% | 53,432 psi | 89% | 2500 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 96% | 53,127 psi | 88% | 2602 fps | 99% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 42,801 psi | 71% | 2487 fps | 96.4% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 49,153 psi | 82% | 2631 fps | 99.2% |
| Baschieri & Pellagri 106 | <<locked>> | 84% | 52,736 psi | 88% | 2448 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 92% | 51,866 psi | 86% | 2582 fps | 98.4% |
| Bofors RP3 | <<locked>> | 98% | 52,170 psi | 87% | 2595 fps | 99.7% |
| Hodgdon Benchmark | <<locked>> | 90% | 54,244 psi | 90% | 2523 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 92% | 53,548 psi | 89% | 2605 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 88% | 51,938 psi | 86% | 2641 fps | 98.9% |
| Hodgdon H322 | <<locked>> | 86% | 52,373 psi | 87% | 2536 fps | 100% |
| Hodgdon H335 | <<locked>> | 86% | 53,548 psi | 89% | 2562 fps | 100% |
| Hodgdon H380 | <<locked>> | 98% | 54,027 psi | 90% | 2605 fps | 98.1% |
| Hodgdon H4895 | <<locked>> | 92% | 52,576 psi | 87% | 2579 fps | 99.5% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 38,972 psi | 65% | 2385 fps | 97.1% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 50,981 psi | 85% | 2605 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,229 psi | 57% | 1519 fps | 100% |
| Hodgdon VARGET | <<locked>> | 94% | 54,186 psi | 90% | 2582 fps | 99.6% |
| IMR 3031 | <<locked>> | 92% | 51,590 psi | 86% | 2572 fps | 100% |
| IMR 4064 | <<locked>> | 96% | 52,765 psi | 88% | 2549 fps | 98.9% |
| IMR 4166 Enduron | <<locked>> | 94% | 53,867 psi | 89% | 2530 fps | 95.7% |
| IMR 4198 | <<locked>> | 86% | 54,259 psi | 90% | 2467 fps | 100% |
| IMR 4831ᴾ | <<locked>> | 100% | 40,350 psi | 67% | 2431 fps | 95.9% |
| IMR 4895 | <<locked>> | 96% | 54,389 psi | 90% | 2635 fps | 99.5% |
| IMR 8208 XBR | <<locked>> | 90% | 51,793 psi | 86% | 2533 fps | 99.7% |
| Lovex D073.5 | <<locked>> | 86% | 51,866 psi | 86% | 2523 fps | 100% |
| Lovex D073.6 | <<locked>> | 92% | 50,836 psi | 84% | 2549 fps | 100% |
| Lovex S060 | <<locked>> | 92% | 53,011 psi | 88% | 2510 fps | 99.2% |
| Lovex S062 | <<locked>> | 96% | 52,025 psi | 86% | 2549 fps | 99.8% |
| Lovex S065ᴾ | <<locked>> | 100% | 47,776 psi | 79% | 2484 fps | 96% |
| Norma 200 | <<locked>> | 82% | 53,461 psi | 89% | 2477 fps | 100% |
| Norma 201 | <<locked>> | 94% | 54,331 psi | 90% | 2569 fps | 99.9% |
| Norma 202 | <<locked>> | 92% | 51,547 psi | 86% | 2536 fps | 100% |
| Norma 203B | <<locked>> | 96% | 52,185 psi | 87% | 2592 fps | 99.2% |
| Norma URPᴾ | <<locked>> | 100% | 42,496 psi | 71% | 2477 fps | 96.2% |
| Ramshot Big Game | <<locked>> | 96% | 52,475 psi | 87% | 2615 fps | 99.1% |
| Ramshot TAC | <<locked>> | 90% | 52,475 psi | 87% | 2543 fps | 97.2% |
| Ramshot Wild Boar | <<locked>> | 90% | 51,271 psi | 85% | 2562 fps | 99% |
| Ramshot X-Terminator | <<locked>> | 88% | 53,127 psi | 88% | 2536 fps | 99.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,490 psi | 57% | 1558 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 51,822 psi | 86% | 2526 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 96% | 51,561 psi | 86% | 2539 fps | 96% |
| ReloadSwiss RS 52 | <<locked>> | 94% | 52,634 psi | 87% | 2661 fps | 99% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 52,547 psi | 87% | 2690 fps | 100% |
| Rottweil R 901 | <<locked>> | 90% | 52,243 psi | 87% | 2513 fps | 100% |
| Rottweil R 902 | <<locked>> | 94% | 51,474 psi | 86% | 2520 fps | 99.7% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 51,648 psi | 86% | 2582 fps | 99.5% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 47,776 psi | 79% | 2484 fps | 96% |
| Shooters World Match Rifle | <<locked>> | 92% | 50,836 psi | 84% | 2549 fps | 100% |
| Shooters World Precision | <<locked>> | 96% | 52,025 psi | 86% | 2549 fps | 99.8% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 51,677 psi | 86% | 2493 fps | 99.5% |
| SNPE Vectan SP 10 | <<locked>> | 84% | 54,244 psi | 90% | 2566 fps | 100% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 53,722 psi | 89% | 2641 fps | 99.3% |
| SNPE Vectan SP 3 | <<locked>> | 86% | 54,404 psi | 90% | 2516 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 92% | 53,476 psi | 89% | 2566 fps | 97.8% |
| SNPE Vectan SP 9 | <<locked>> | 94% | 54,070 psi | 90% | 2592 fps | 99.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 92% | 53,461 psi | 89% | 2477 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 98% | 52,968 psi | 88% | 2477 fps | 100% |
| Somchem S321 | <<locked>> | 88% | 52,924 psi | 88% | 2569 fps | 99.9% |
| Somchem S335 | <<locked>> | 92% | 52,388 psi | 87% | 2477 fps | 100% |
| Somchem S341 | <<locked>> | 92% | 53,127 psi | 88% | 2562 fps | 99.2% |
| Somchem S355ᴾ | <<locked>> | 100% | 52,605 psi | 87% | 2582 fps | 99.5% |
| Somchem S365ᴾ | <<locked>> | 100% | 37,898 psi | 63% | 2431 fps | 98.3% |
| Vihtavuori N130 | <<locked>> | 88% | 53,563 psi | 89% | 2454 fps | 100% |
| Vihtavuori N133 | <<locked>> | 92% | 53,258 psi | 88% | 2467 fps | 100% |
| Vihtavuori N135 | <<locked>> | 96% | 53,519 psi | 89% | 2536 fps | 100% |
| Vihtavuori N140 | <<locked>> | 94% | 51,808 psi | 86% | 2513 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 50,763 psi | 84% | 2523 fps | 99.8% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 44,831 psi | 74% | 2477 fps | 96.6% |
| Vihtavuori N530 | <<locked>> | 90% | 52,402 psi | 87% | 2536 fps | 99.8% |
| Vihtavuori N540 | <<locked>> | 96% | 53,403 psi | 89% | 2556 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 43,729 psi | 73% | 2484 fps | 96.3% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 46,499 psi | 77% | 2474 fps | 98.7% |
| Winchester 748 | <<locked>> | 90% | 51,256 psi | 85% | 2575 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 94% | 53,403 psi | 89% | 2598 fps | 99.6% |
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% | 39,291 psi | 65% | 2290 fps | 100% |
| Accurate 2200 | <<locked>> | 80% | 50,488 psi | 84% | 2526 fps | 98.3% |
| Accurate 2460 | <<locked>> | 80% | 42,612 psi | 71% | 2379 fps | 99.8% |
| Accurate 2495 | <<locked>> | 80% | 31,691 psi | 53% | 2205 fps | 99.9% |
| Accurate 2520 | <<locked>> | 80% | 37,710 psi | 63% | 2329 fps | 99.1% |
| Accurate 4064 | <<locked>> | 80% | 30,008 psi | 50% | 2185 fps | 98.3% |
| Accurate 4350 | <<locked>> | 98% | 38,972 psi | 65% | 2428 fps | 95.5% |
| Accurate LT-30 | <<locked>> | 80% | 47,645 psi | 79% | 2362 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 48,022 psi | 80% | 2379 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 35,998 psi | 60% | 2287 fps | 95.9% |
| ADI AR 2208 | <<locked>> | 86% | 36,970 psi | 61% | 2290 fps | 95.3% |
| ADI AR 2219 | <<locked>> | 80% | 47,152 psi | 78% | 2464 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 37,971 psi | 63% | 2303 fps | 97.8% |
| Alliant AR-Comp | <<locked>> | 80% | 36,593 psi | 61% | 2310 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 43,627 psi | 72% | 2474 fps | 98.5% |
| Alliant Power Pro 2000-MR | 42.3 gr | 86% | 39,566 psi | 66% | 2444 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 31,430 psi | 52% | 2211 fps | 95.4% |
| Alliant Reloder-10x | <<locked>> | 80% | 44,541 psi | 74% | 2379 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 36,535 psi | 61% | 2320 fps | 95.5% |
| Alliant Reloder-16 | <<locked>> | 98% | 40,292 psi | 67% | 2438 fps | 95.6% |
| Alliant Reloder-17 | <<locked>> | 90% | 35,578 psi | 59% | 2369 fps | 95.9% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 46,441 psi | 77% | 2362 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 39,711 psi | 66% | 2379 fps | 95.7% |
| Bofors RP3 | <<locked>> | 82% | 30,574 psi | 51% | 2208 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 40,045 psi | 67% | 2300 fps | 98.7% |
| Hodgdon BL-C2 | <<locked>> | 80% | 35,752 psi | 59% | 2313 fps | 97.8% |
| Hodgdon CFE223 | 40.2 gr | 80% | 39,233 psi | 65% | 2421 fps | 96.3% |
| Hodgdon H322 | <<locked>> | 80% | 43,323 psi | 72% | 2405 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 43,700 psi | 73% | 2418 fps | 99.9% |
| Hodgdon H380 | <<locked>> | 90% | 41,524 psi | 69% | 2405 fps | 95.5% |
| Hodgdon H4895 | <<locked>> | 80% | 36,187 psi | 60% | 2297 fps | 96.6% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 34,447 psi | 57% | 2290 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 32,401 psi | 54% | 2260 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,411 psi | 42% | 1355 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 34,983 psi | 58% | 2257 fps | 96.1% |
| IMR 3031 | <<locked>> | 80% | 34,983 psi | 58% | 2306 fps | 99.9% |
| IMR 4064 | <<locked>> | 84% | 36,434 psi | 61% | 2274 fps | 95.5% |
| IMR 4166 Enduron | <<locked>> | 92% | 50,749 psi | 84% | 2484 fps | 95% |
| IMR 4198 | <<locked>> | 80% | 45,455 psi | 76% | 2349 fps | 100% |
| IMR 4831 | <<locked>> | 98% | 37,884 psi | 63% | 2385 fps | 95.1% |
| IMR 4895 | <<locked>> | 82% | 34,824 psi | 58% | 2297 fps | 95.7% |
| IMR 8208 XBR | <<locked>> | 80% | 37,971 psi | 63% | 2303 fps | 97.8% |
| Lovex D073.5 | <<locked>> | 80% | 42,235 psi | 70% | 2379 fps | 99.3% |
| Lovex D073.6 | <<locked>> | 80% | 33,968 psi | 56% | 2267 fps | 98.4% |
| Lovex S060 | <<locked>> | 80% | 37,014 psi | 61% | 2241 fps | 96.2% |
| Lovex S062 | <<locked>> | 80% | 31,792 psi | 53% | 2188 fps | 96% |
| Lovex S065 | <<locked>> | 98% | 44,962 psi | 75% | 2438 fps | 95.3% |
| Norma 200 | <<locked>> | 80% | 50,285 psi | 84% | 2434 fps | 100% |
| Norma 201 | <<locked>> | 80% | 35,360 psi | 59% | 2251 fps | 97.2% |
| Norma 202 | <<locked>> | 80% | 35,244 psi | 59% | 2264 fps | 99.1% |
| Norma 203B | <<locked>> | 82% | 33,475 psi | 56% | 2257 fps | 95.1% |
| Norma URP | <<locked>> | 98% | 39,958 psi | 66% | 2428 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 84% | 35,331 psi | 59% | 2313 fps | 95.3% |
| Ramshot TAC | <<locked>> | 84% | 43,163 psi | 72% | 2395 fps | 95% |
| Ramshot Wild Boar | <<locked>> | 80% | 36,680 psi | 61% | 2313 fps | 96% |
| Ramshot X-Terminator | <<locked>> | 80% | 41,191 psi | 68% | 2343 fps | 97.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,744 psi | 43% | 1394 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 42,540 psi | 71% | 2382 fps | 99.5% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 48,211 psi | 80% | 2487 fps | 95.2% |
| ReloadSwiss RS 52 | 40 gr | 84% | 37,492 psi | 62% | 2398 fps | 95.7% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 29,327 psi | 49% | 2221 fps | 95.8% |
| Rottweil R 901 | <<locked>> | 80% | 39,117 psi | 65% | 2303 fps | 99.5% |
| Rottweil R 902 | <<locked>> | 80% | 33,707 psi | 56% | 2208 fps | 96.6% |
| Rottweil R 903 | <<locked>> | 86% | 32,808 psi | 55% | 2251 fps | 95.7% |
| Shooters World Long Rifle | <<locked>> | 98% | 44,962 psi | 75% | 2438 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 33,968 psi | 56% | 2267 fps | 98.4% |
| Shooters World Precision | <<locked>> | 80% | 31,792 psi | 53% | 2188 fps | 96% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 45,034 psi | 75% | 2395 fps | 98.8% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 47,485 psi | 79% | 2470 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 34,519 psi | 57% | 2300 fps | 95.1% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 45,266 psi | 75% | 2392 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 40,930 psi | 68% | 2365 fps | 95.1% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 34,534 psi | 57% | 2254 fps | 95.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 37,115 psi | 62% | 2224 fps | 99.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 30,327 psi | 50% | 2106 fps | 98.8% |
| Somchem S321 | <<locked>> | 80% | 40,451 psi | 67% | 2372 fps | 98.6% |
| Somchem S335 | <<locked>> | 80% | 36,535 psi | 61% | 2231 fps | 99.7% |
| Somchem S341 | <<locked>> | 80% | 35,317 psi | 59% | 2267 fps | 95.5% |
| Somchem S355 | <<locked>> | 84% | 32,053 psi | 53% | 2215 fps | 95.1% |
| Somchem S365 | <<locked>> | 92% | 29,530 psi | 49% | 2231 fps | 95.1% |
| Vihtavuori N130 | <<locked>> | 80% | 42,163 psi | 70% | 2297 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 37,115 psi | 62% | 2228 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 32,314 psi | 54% | 2205 fps | 99.9% |
| Vihtavuori N140 | <<locked>> | 80% | 33,272 psi | 55% | 2208 fps | 99% |
| Vihtavuori N150 | <<locked>> | 82% | 28,514 psi | 47% | 2116 fps | 95.3% |
| Vihtavuori N160 | <<locked>> | 96% | 39,639 psi | 66% | 2385 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 80% | 37,753 psi | 63% | 2297 fps | 97.8% |
| Vihtavuori N540 | <<locked>> | 80% | 31,937 psi | 53% | 2195 fps | 98.2% |
| Vihtavuori N550 | <<locked>> | 98% | 41,075 psi | 68% | 2434 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 33,547 psi | 56% | 2231 fps | 95.1% |
| Winchester 748 | <<locked>> | 80% | 36,463 psi | 61% | 2329 fps | 98.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 33,562 psi | 56% | 2257 fps | 95.8% |
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 109 powders for .308 Win. Ackley Improved loaded with the .308 | 181gr | RWS H-Mantel. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,690 fps; across all powders the maximum-charge window runs from 1,519 fps to 2,690 fps. Accurate 4350 gives the best case fill at 100 %, and 109 of the 109 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (415 MPa), the top charges use 50–90 %, leaving at least 10 % headroom. The 181.0 gr projectile in 0.308" calls for a 1:14.0 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Alliant Reloder-17 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. Alliant Power Pro 2000-MR, ReloadSwiss RS 52, Hodgdon CFE223 rank at the top here: for .308 Win. Ackley Improved with the .308 | 181gr | RWS H-Mantel they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2700, Alliant Reloder-23, Bofors RP7 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.