Load Specifications
Load data in caliber .308 Win. Ackley Improved with .308 | 180gr | Swift A-Frame 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% | 53,316 psi | 89% | 2500 fps | 100% |
| Accurate 2200 | <<locked>> | 82% | 53,751 psi | 89% | 2582 fps | 98.8% |
| Accurate 2230 | <<locked>> | 82% | 54,288 psi | 90% | 2592 fps | 99.1% |
| Accurate 2460 | <<locked>> | 86% | 51,561 psi | 86% | 2520 fps | 100% |
| Accurate 2495 | <<locked>> | 96% | 53,272 psi | 89% | 2552 fps | 100% |
| Accurate 2520 | <<locked>> | 90% | 52,997 psi | 88% | 2575 fps | 100% |
| Accurate 4064 | <<locked>> | 98% | 52,808 psi | 88% | 2589 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 41,597 psi | 69% | 2480 fps | 96.2% |
| Accurate LT-30 | <<locked>> | 84% | 53,809 psi | 89% | 2454 fps | 100% |
| Accurate LT-32 | <<locked>> | 84% | 54,201 psi | 90% | 2474 fps | 100% |
| ADI AR 2206H | <<locked>> | 92% | 52,112 psi | 87% | 2575 fps | 99.1% |
| ADI AR 2208 | <<locked>> | 98% | 53,156 psi | 88% | 2569 fps | 98.8% |
| ADI AR 2219 | <<locked>> | 84% | 53,838 psi | 89% | 2562 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 90% | 51,735 psi | 86% | 2539 fps | 99.7% |
| Alliant AR-Comp | <<locked>> | 92% | 54,157 psi | 90% | 2566 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 86% | 53,156 psi | 88% | 2635 fps | 99.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 94% | 51,401 psi | 85% | 2667 fps | 98.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 98% | 52,025 psi | 86% | 2589 fps | 99.6% |
| Alliant Reloder-10x | <<locked>> | 86% | 53,388 psi | 89% | 2507 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 96% | 52,982 psi | 88% | 2608 fps | 98.9% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 42,714 psi | 71% | 2490 fps | 96.3% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 49,052 psi | 81% | 2638 fps | 99.2% |
| Baschieri & Pellagri 106 | <<locked>> | 84% | 52,678 psi | 88% | 2454 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 92% | 51,779 psi | 86% | 2589 fps | 98.3% |
| Bofors RP3 | <<locked>> | 98% | 52,040 psi | 86% | 2602 fps | 99.7% |
| Hodgdon Benchmark | <<locked>> | 90% | 54,230 psi | 90% | 2530 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 92% | 53,461 psi | 89% | 2612 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 88% | 51,474 psi | 86% | 2641 fps | 98.8% |
| Hodgdon H322 | <<locked>> | 86% | 52,373 psi | 87% | 2543 fps | 100% |
| Hodgdon H335 | <<locked>> | 86% | 53,432 psi | 89% | 2569 fps | 100% |
| Hodgdon H380 | <<locked>> | 98% | 53,940 psi | 90% | 2612 fps | 98% |
| Hodgdon H4895 | <<locked>> | 92% | 52,533 psi | 87% | 2585 fps | 99.5% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 38,856 psi | 65% | 2388 fps | 97% |
| Hodgdon LEVERevolution | <<locked>> | 96% | 54,418 psi | 90% | 2661 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,432 psi | 57% | 1529 fps | 100% |
| Hodgdon VARGET | <<locked>> | 94% | 54,070 psi | 90% | 2589 fps | 99.6% |
| IMR 3031 | <<locked>> | 92% | 51,517 psi | 86% | 2579 fps | 100% |
| IMR 4064 | <<locked>> | 96% | 52,692 psi | 88% | 2556 fps | 98.9% |
| IMR 4198 | <<locked>> | 86% | 53,824 psi | 89% | 2470 fps | 100% |
| IMR 4831ᴾ | <<locked>> | 100% | 40,234 psi | 67% | 2438 fps | 95.8% |
| IMR 4895 | <<locked>> | 96% | 54,317 psi | 90% | 2638 fps | 99.4% |
| IMR 8208 XBR | <<locked>> | 90% | 51,735 psi | 86% | 2539 fps | 99.7% |
| Lovex D073.5 | <<locked>> | 86% | 51,430 psi | 85% | 2526 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 94% | 54,360 psi | 90% | 2605 fps | 100% |
| Lovex S060 | <<locked>> | 92% | 52,968 psi | 88% | 2516 fps | 99.2% |
| Lovex S062 | <<locked>> | 96% | 51,953 psi | 86% | 2556 fps | 99.8% |
| Lovex S065ᴾ | <<locked>> | 100% | 47,718 psi | 79% | 2490 fps | 95.9% |
| Norma 200 | <<locked>> | 82% | 53,461 psi | 89% | 2484 fps | 100% |
| Norma 201 | <<locked>> | 94% | 54,215 psi | 90% | 2572 fps | 99.9% |
| Norma 202 | <<locked>> | 94% | 54,360 psi | 90% | 2579 fps | 100% |
| Norma 203B | <<locked>> | 96% | 52,083 psi | 87% | 2598 fps | 99.2% |
| Norma URPᴾ | <<locked>> | 100% | 42,366 psi | 70% | 2484 fps | 96.1% |
| Ramshot Big Game | <<locked>> | 96% | 52,388 psi | 87% | 2621 fps | 99.1% |
| Ramshot TAC | <<locked>> | 90% | 52,373 psi | 87% | 2549 fps | 97.1% |
| Ramshot Wild Boar | <<locked>> | 92% | 54,360 psi | 90% | 2612 fps | 99.3% |
| Ramshot X-Terminator | <<locked>> | 88% | 53,040 psi | 88% | 2543 fps | 99.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,679 psi | 58% | 1565 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 51,430 psi | 85% | 2526 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 96% | 51,488 psi | 86% | 2546 fps | 95.9% |
| ReloadSwiss RS 52 | <<locked>> | 94% | 52,547 psi | 87% | 2667 fps | 98.9% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 52,446 psi | 87% | 2697 fps | 100% |
| Rottweil R 901 | <<locked>> | 90% | 52,185 psi | 87% | 2520 fps | 100% |
| Rottweil R 902 | <<locked>> | 94% | 51,372 psi | 85% | 2526 fps | 99.7% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 51,576 psi | 86% | 2585 fps | 99.5% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 47,718 psi | 79% | 2490 fps | 95.9% |
| Shooters World Match Rifle | <<locked>> | 94% | 54,360 psi | 90% | 2605 fps | 100% |
| Shooters World Precision | <<locked>> | 96% | 51,953 psi | 86% | 2556 fps | 99.8% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 51,619 psi | 86% | 2500 fps | 99.5% |
| SNPE Vectan SP 10 | <<locked>> | 84% | 54,215 psi | 90% | 2572 fps | 100% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 53,577 psi | 89% | 2644 fps | 99.3% |
| SNPE Vectan SP 3 | <<locked>> | 86% | 54,375 psi | 90% | 2526 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 92% | 53,403 psi | 89% | 2569 fps | 97.8% |
| SNPE Vectan SP 9 | <<locked>> | 94% | 54,012 psi | 90% | 2598 fps | 99.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 92% | 53,388 psi | 89% | 2484 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 98% | 52,504 psi | 87% | 2477 fps | 100% |
| Somchem S321 | <<locked>> | 88% | 52,794 psi | 88% | 2575 fps | 99.9% |
| Somchem S335 | <<locked>> | 92% | 52,286 psi | 87% | 2484 fps | 100% |
| Somchem S341 | <<locked>> | 92% | 52,968 psi | 88% | 2569 fps | 99.1% |
| Somchem S355ᴾ | <<locked>> | 100% | 52,446 psi | 87% | 2589 fps | 99.5% |
| Somchem S365ᴾ | <<locked>> | 100% | 37,797 psi | 63% | 2434 fps | 98.2% |
| Vihtavuori N130 | <<locked>> | 88% | 53,548 psi | 89% | 2464 fps | 100% |
| Vihtavuori N133 | <<locked>> | 92% | 53,185 psi | 88% | 2474 fps | 100% |
| Vihtavuori N135 | <<locked>> | 96% | 53,490 psi | 89% | 2546 fps | 100% |
| Vihtavuori N140 | <<locked>> | 94% | 51,779 psi | 86% | 2520 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 50,647 psi | 84% | 2530 fps | 99.8% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 44,759 psi | 74% | 2484 fps | 96.6% |
| Vihtavuori N530 | <<locked>> | 90% | 52,330 psi | 87% | 2543 fps | 99.8% |
| Vihtavuori N540 | <<locked>> | 96% | 52,939 psi | 88% | 2556 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 43,569 psi | 72% | 2487 fps | 96.2% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 46,050 psi | 77% | 2477 fps | 98.6% |
| Winchester 748 | <<locked>> | 92% | 54,418 psi | 90% | 2628 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 94% | 53,330 psi | 89% | 2605 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% | 39,276 psi | 65% | 2297 fps | 100% |
| Accurate 2200 | <<locked>> | 80% | 50,111 psi | 83% | 2530 fps | 98.2% |
| Accurate 2230 | <<locked>> | 80% | 50,647 psi | 84% | 2539 fps | 98.6% |
| Accurate 2460 | <<locked>> | 80% | 42,264 psi | 70% | 2379 fps | 99.8% |
| Accurate 2495 | <<locked>> | 80% | 31,705 psi | 53% | 2211 fps | 99.9% |
| Accurate 2520 | <<locked>> | 80% | 37,623 psi | 63% | 2336 fps | 99.1% |
| Accurate 4064 | <<locked>> | 80% | 29,994 psi | 50% | 2192 fps | 98.3% |
| Accurate 4350 | <<locked>> | 98% | 38,899 psi | 65% | 2434 fps | 95.4% |
| Accurate LT-30 | <<locked>> | 80% | 47,616 psi | 79% | 2369 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 48,008 psi | 80% | 2385 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 80% | 35,998 psi | 60% | 2290 fps | 95.8% |
| ADI AR 2208 | <<locked>> | 86% | 36,956 psi | 61% | 2297 fps | 95.2% |
| ADI AR 2219 | <<locked>> | 80% | 47,094 psi | 78% | 2470 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 37,927 psi | 63% | 2310 fps | 97.7% |
| Alliant AR-Comp | <<locked>> | 80% | 36,521 psi | 61% | 2316 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 43,613 psi | 72% | 2484 fps | 98.4% |
| Alliant Power Pro 2000-MR | 42.3 gr | 86% | 39,262 psi | 65% | 2444 fps | 95.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 31,386 psi | 52% | 2218 fps | 95.3% |
| Alliant Reloder-10x | <<locked>> | 80% | 44,556 psi | 74% | 2385 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 36,216 psi | 60% | 2320 fps | 95.3% |
| Alliant Reloder-16 | <<locked>> | 98% | 40,234 psi | 67% | 2441 fps | 95.5% |
| Alliant Reloder-17 | <<locked>> | 90% | 35,317 psi | 59% | 2369 fps | 95.7% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 46,398 psi | 77% | 2369 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 39,682 psi | 66% | 2385 fps | 95.7% |
| Bofors RP3 | <<locked>> | 82% | 30,560 psi | 51% | 2215 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 40,016 psi | 66% | 2306 fps | 98.6% |
| Hodgdon BL-C2 | <<locked>> | 80% | 35,694 psi | 59% | 2316 fps | 97.8% |
| Hodgdon CFE223 | 40.3 gr | 80% | 39,189 psi | 65% | 2428 fps | 96.2% |
| Hodgdon H322 | <<locked>> | 80% | 42,975 psi | 71% | 2405 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 43,627 psi | 72% | 2425 fps | 99.9% |
| Hodgdon H380 | <<locked>> | 90% | 41,437 psi | 69% | 2411 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 80% | 36,187 psi | 60% | 2303 fps | 96.6% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 34,418 psi | 57% | 2297 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 32,155 psi | 53% | 2260 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,599 psi | 43% | 1365 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 34,983 psi | 58% | 2264 fps | 96% |
| IMR 3031 | <<locked>> | 80% | 34,737 psi | 58% | 2310 fps | 99.9% |
| IMR 4064 | <<locked>> | 84% | 36,405 psi | 60% | 2280 fps | 95.4% |
| IMR 4198 | <<locked>> | 80% | 45,484 psi | 76% | 2356 fps | 100% |
| IMR 4831 | <<locked>> | 98% | 37,797 psi | 63% | 2388 fps | 95% |
| IMR 4895 | <<locked>> | 82% | 34,780 psi | 58% | 2300 fps | 95.6% |
| IMR 8208 XBR | <<locked>> | 80% | 37,927 psi | 63% | 2310 fps | 97.7% |
| Lovex D073.5 | <<locked>> | 80% | 42,177 psi | 70% | 2385 fps | 99.2% |
| Lovex D073.6 | <<locked>> | 80% | 33,939 psi | 56% | 2274 fps | 98.3% |
| Lovex S060 | <<locked>> | 80% | 37,028 psi | 62% | 2247 fps | 96.1% |
| Lovex S062 | <<locked>> | 80% | 31,778 psi | 53% | 2195 fps | 96% |
| Lovex S065 | <<locked>> | 98% | 44,904 psi | 75% | 2444 fps | 95.2% |
| Norma 200 | <<locked>> | 80% | 50,270 psi | 84% | 2441 fps | 100% |
| Norma 201 | <<locked>> | 80% | 35,317 psi | 59% | 2257 fps | 97.1% |
| Norma 202 | <<locked>> | 80% | 35,230 psi | 59% | 2270 fps | 99.1% |
| Norma 203B | <<locked>> | 82% | 33,431 psi | 56% | 2264 fps | 95% |
| Norma URP | <<locked>> | 98% | 39,827 psi | 66% | 2434 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 84% | 35,317 psi | 59% | 2320 fps | 95.2% |
| Ramshot TAC | <<locked>> | 86% | 46,006 psi | 76% | 2451 fps | 95.7% |
| Ramshot Wild Boar | <<locked>> | 80% | 36,651 psi | 61% | 2316 fps | 96% |
| Ramshot X-Terminator | <<locked>> | 80% | 41,162 psi | 68% | 2349 fps | 97.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,672 psi | 43% | 1398 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 42,496 psi | 71% | 2388 fps | 99.5% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 48,124 psi | 80% | 2493 fps | 95.1% |
| ReloadSwiss RS 52 | 40.1 gr | 84% | 37,420 psi | 62% | 2405 fps | 95.6% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 29,283 psi | 49% | 2224 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 80% | 38,870 psi | 65% | 2306 fps | 99.4% |
| Rottweil R 902 | <<locked>> | 80% | 33,663 psi | 56% | 2215 fps | 96.6% |
| Rottweil R 903 | <<locked>> | 86% | 32,721 psi | 54% | 2257 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 98% | 44,904 psi | 75% | 2444 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 33,939 psi | 56% | 2274 fps | 98.3% |
| Shooters World Precision | <<locked>> | 80% | 31,778 psi | 53% | 2195 fps | 96% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 45,005 psi | 75% | 2402 fps | 98.8% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 47,442 psi | 79% | 2477 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 34,447 psi | 57% | 2306 fps | 95% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 45,252 psi | 75% | 2398 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 40,872 psi | 68% | 2372 fps | 95% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 34,490 psi | 57% | 2260 fps | 95.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 37,115 psi | 62% | 2231 fps | 99.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 30,298 psi | 50% | 2110 fps | 98.7% |
| Somchem S321 | <<locked>> | 80% | 40,393 psi | 67% | 2379 fps | 98.5% |
| Somchem S335 | <<locked>> | 80% | 36,521 psi | 61% | 2238 fps | 99.6% |
| Somchem S341 | <<locked>> | 80% | 35,273 psi | 59% | 2274 fps | 95.4% |
| Somchem S355 | <<locked>> | 84% | 32,010 psi | 53% | 2221 fps | 95% |
| Somchem S365 | <<locked>> | 92% | 29,515 psi | 49% | 2238 fps | 95% |
| Vihtavuori N130 | <<locked>> | 80% | 42,134 psi | 70% | 2303 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 37,130 psi | 62% | 2238 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 32,271 psi | 54% | 2211 fps | 99.9% |
| Vihtavuori N140 | <<locked>> | 80% | 33,272 psi | 55% | 2215 fps | 98.9% |
| Vihtavuori N150 | <<locked>> | 82% | 28,456 psi | 47% | 2123 fps | 95.2% |
| Vihtavuori N160 | <<locked>> | 96% | 39,595 psi | 66% | 2392 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 80% | 37,724 psi | 63% | 2303 fps | 97.7% |
| Vihtavuori N540 | <<locked>> | 80% | 31,908 psi | 53% | 2201 fps | 98.2% |
| Vihtavuori N550 | <<locked>> | 98% | 41,002 psi | 68% | 2441 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 33,489 psi | 56% | 2234 fps | 95% |
| Winchester 748 | <<locked>> | 80% | 36,405 psi | 60% | 2336 fps | 98.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 33,518 psi | 56% | 2260 fps | 95.7% |
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 92 powders for .308 Win. Ackley Improved loaded with the .308 | 180gr | Swift A-Frame. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,697 fps; across all powders the maximum-charge window runs from 1,529 fps to 2,697 fps. Accurate 4350 gives the best case fill at 100 %, and 92 of the 92 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (415 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 180.0 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 | 180gr | Swift A-Frame 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.