Load Specifications
Load data in caliber .308 Win. Ackley Improved with .308 | 178gr | Remington SP Extended-Range 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 60 and ReloadSwiss RS 52.
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>> | 88% | 52,649 psi | 87% | 2530 fps | 100% |
| Accurate 2460 | <<locked>> | 86% | 54,404 psi | 90% | 2595 fps | 100% |
| Accurate 2495 | <<locked>> | 94% | 52,997 psi | 88% | 2585 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 52,141 psi | 87% | 2602 fps | 100% |
| Accurate 4064 | <<locked>> | 96% | 52,808 psi | 88% | 2625 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 44,875 psi | 75% | 2575 fps | 97.3% |
| Accurate LT-30 | <<locked>> | 82% | 52,475 psi | 87% | 2477 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 52,866 psi | 88% | 2497 fps | 100% |
| ADI AR 2206H | <<locked>> | 90% | 51,416 psi | 85% | 2605 fps | 99.3% |
| ADI AR 2208 | <<locked>> | 96% | 52,359 psi | 87% | 2602 fps | 98.9% |
| ADI AR 2219 | <<locked>> | 82% | 52,721 psi | 88% | 2585 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 90% | 54,027 psi | 90% | 2612 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 90% | 53,766 psi | 89% | 2595 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 52,214 psi | 87% | 2664 fps | 99.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 94% | 54,056 psi | 90% | 2756 fps | 99.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 51,416 psi | 85% | 2621 fps | 99.7% |
| Alliant Reloder-10x | <<locked>> | 84% | 52,678 psi | 88% | 2536 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 52,373 psi | 87% | 2641 fps | 99.1% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 45,078 psi | 75% | 2579 fps | 97.4% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 51,996 psi | 86% | 2726 fps | 99.7% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 51,576 psi | 86% | 2477 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 50,966 psi | 85% | 2618 fps | 98.5% |
| Bofors RP3 | <<locked>> | 96% | 51,605 psi | 86% | 2635 fps | 99.8% |
| Hodgdon Benchmark | <<locked>> | 88% | 53,156 psi | 88% | 2556 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 90% | 52,721 psi | 88% | 2641 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 86% | 50,908 psi | 85% | 2674 fps | 98.9% |
| Hodgdon H322 | <<locked>> | 84% | 51,677 psi | 86% | 2572 fps | 100% |
| Hodgdon H335 | <<locked>> | 84% | 52,373 psi | 87% | 2595 fps | 100% |
| Hodgdon H380 | <<locked>> | 96% | 53,272 psi | 89% | 2641 fps | 98.2% |
| Hodgdon H4895 | <<locked>> | 90% | 51,808 psi | 86% | 2618 fps | 99.6% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 41,234 psi | 69% | 2474 fps | 98% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 53,882 psi | 90% | 2694 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,548 psi | 57% | 1565 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 53,403 psi | 89% | 2621 fps | 99.7% |
| IMR 3031 | <<locked>> | 92% | 54,404 psi | 90% | 2654 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 52,098 psi | 87% | 2589 fps | 99% |
| IMR 4166 Enduron | <<locked>> | 92% | 52,866 psi | 88% | 2566 fps | 95.9% |
| IMR 4198 | <<locked>> | 84% | 52,910 psi | 88% | 2497 fps | 100% |
| IMR 4831ᴾ | <<locked>> | 100% | 42,772 psi | 71% | 2520 fps | 96.9% |
| IMR 4895 | <<locked>> | 94% | 53,635 psi | 89% | 2671 fps | 99.5% |
| IMR 8208 XBR | <<locked>> | 90% | 54,027 psi | 90% | 2612 fps | 99.9% |
| Lovex D073.5 | <<locked>> | 84% | 50,778 psi | 84% | 2556 fps | 100% |
| Lovex D073.6 | <<locked>> | 92% | 53,751 psi | 89% | 2635 fps | 100% |
| Lovex S060 | <<locked>> | 90% | 51,837 psi | 86% | 2543 fps | 99.3% |
| Lovex S062 | <<locked>> | 94% | 51,503 psi | 86% | 2589 fps | 99.8% |
| Lovex S065ᴾ | <<locked>> | 100% | 50,357 psi | 84% | 2572 fps | 96.9% |
| Norma 201 | <<locked>> | 92% | 53,417 psi | 89% | 2605 fps | 99.9% |
| Norma 202 | <<locked>> | 92% | 53,896 psi | 90% | 2612 fps | 100% |
| Norma 203B | <<locked>> | 94% | 51,488 psi | 86% | 2631 fps | 99.3% |
| Norma URPᴾ | <<locked>> | 100% | 44,889 psi | 75% | 2569 fps | 97.1% |
| Ramshot Big Game | <<locked>> | 94% | 51,619 psi | 86% | 2651 fps | 99.2% |
| Ramshot TAC | <<locked>> | 88% | 51,169 psi | 85% | 2575 fps | 97.2% |
| Ramshot Wild Boar | <<locked>> | 90% | 53,809 psi | 89% | 2648 fps | 99.5% |
| Ramshot X-Terminator | <<locked>> | 86% | 52,025 psi | 86% | 2569 fps | 99.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,780 psi | 58% | 1601 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 53,969 psi | 90% | 2602 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 96% | 54,070 psi | 90% | 2628 fps | 96.8% |
| ReloadSwiss RS 52 | <<locked>> | 92% | 51,938 psi | 86% | 2700 fps | 99.1% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 51,692 psi | 86% | 2730 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 44,599 psi | 74% | 2592 fps | 96.8% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 46,093 psi | 77% | 2608 fps | 96.2% |
| Rottweil R 901 | <<locked>> | 88% | 51,561 psi | 86% | 2549 fps | 100% |
| Rottweil R 902 | <<locked>> | 94% | 54,099 psi | 90% | 2605 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 98% | 51,184 psi | 85% | 2621 fps | 99.6% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 50,357 psi | 84% | 2572 fps | 96.9% |
| Shooters World Match Rifle | <<locked>> | 92% | 53,751 psi | 89% | 2635 fps | 100% |
| Shooters World Precision | <<locked>> | 94% | 51,503 psi | 86% | 2589 fps | 99.8% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 53,940 psi | 90% | 2575 fps | 99.8% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 53,258 psi | 88% | 2598 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 98% | 53,084 psi | 88% | 2680 fps | 99.4% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 53,621 psi | 89% | 2556 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 90% | 52,794 psi | 88% | 2605 fps | 98% |
| SNPE Vectan SP 9 | <<locked>> | 92% | 53,185 psi | 88% | 2628 fps | 99.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 52,446 psi | 87% | 2513 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 51,866 psi | 86% | 2510 fps | 100% |
| Somchem S321 | <<locked>> | 86% | 51,880 psi | 86% | 2602 fps | 99.9% |
| Somchem S335 | <<locked>> | 90% | 51,648 psi | 86% | 2513 fps | 100% |
| Somchem S341 | <<locked>> | 90% | 52,054 psi | 86% | 2598 fps | 99.2% |
| Somchem S355 | <<locked>> | 98% | 52,069 psi | 87% | 2621 fps | 99.6% |
| Somchem S365ᴾ | <<locked>> | 100% | 40,059 psi | 67% | 2520 fps | 99% |
| Vihtavuori N130 | <<locked>> | 86% | 52,562 psi | 87% | 2490 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 52,359 psi | 87% | 2503 fps | 100% |
| Vihtavuori N135 | <<locked>> | 94% | 52,910 psi | 88% | 2575 fps | 100% |
| Vihtavuori N140 | <<locked>> | 94% | 54,317 psi | 90% | 2592 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 53,563 psi | 89% | 2608 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 47,587 psi | 79% | 2572 fps | 97.6% |
| Vihtavuori N530 | <<locked>> | 88% | 51,227 psi | 85% | 2566 fps | 99.8% |
| Vihtavuori N540 | <<locked>> | 94% | 52,446 psi | 87% | 2589 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 46,325 psi | 77% | 2572 fps | 97.2% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 48,733 psi | 81% | 2562 fps | 99.3% |
| Winchester 748 | <<locked>> | 90% | 53,780 psi | 89% | 2657 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 92% | 52,765 psi | 88% | 2638 fps | 99.7% |
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% | 41,002 psi | 68% | 2359 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 44,570 psi | 74% | 2454 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 33,605 psi | 56% | 2280 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 39,842 psi | 66% | 2411 fps | 99.5% |
| Accurate 4064 | <<locked>> | 80% | 31,778 psi | 53% | 2260 fps | 98.9% |
| Accurate 4350 | <<locked>> | 96% | 38,885 psi | 65% | 2467 fps | 95.7% |
| Accurate LT-30 | <<locked>> | 80% | 49,530 psi | 82% | 2438 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 49,922 psi | 83% | 2454 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 37,623 psi | 63% | 2362 fps | 96.7% |
| ADI AR 2208 | <<locked>> | 84% | 36,405 psi | 60% | 2320 fps | 95.4% |
| ADI AR 2219 | <<locked>> | 80% | 49,313 psi | 82% | 2539 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 39,581 psi | 66% | 2375 fps | 98.3% |
| Alliant AR-Comp | <<locked>> | 80% | 38,725 psi | 64% | 2385 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 45,716 psi | 76% | 2559 fps | 99% |
| Alliant Power Pro 2000-MR | 43.9 gr | 84% | 38,769 psi | 64% | 2474 fps | 95.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 31,067 psi | 52% | 2241 fps | 95.5% |
| Alliant Reloder-10x | <<locked>> | 80% | 46,485 psi | 77% | 2451 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 35,853 psi | 60% | 2346 fps | 95.5% |
| Alliant Reloder-16 | <<locked>> | 94% | 37,594 psi | 62% | 2428 fps | 95% |
| Alliant Reloder-17 | <<locked>> | 86% | 32,692 psi | 54% | 2346 fps | 95% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 48,283 psi | 80% | 2434 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 36,463 psi | 61% | 2356 fps | 95% |
| Bofors RP3 | <<locked>> | 80% | 30,443 psi | 51% | 2241 fps | 95.4% |
| Hodgdon Benchmark | <<locked>> | 80% | 41,698 psi | 69% | 2375 fps | 99.1% |
| Hodgdon BL-C2 | <<locked>> | 80% | 37,666 psi | 63% | 2392 fps | 98.5% |
| Hodgdon CFE223 | <<locked>> | 80% | 41,408 psi | 69% | 2510 fps | 97.2% |
| Hodgdon H322 | <<locked>> | 80% | 45,237 psi | 75% | 2480 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 45,774 psi | 76% | 2497 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 41,002 psi | 68% | 2441 fps | 95.6% |
| Hodgdon H4895 | <<locked>> | 80% | 37,840 psi | 63% | 2372 fps | 97.3% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 32,271 psi | 54% | 2283 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 33,924 psi | 56% | 2339 fps | 96.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,643 psi | 43% | 1394 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 36,564 psi | 61% | 2333 fps | 96.9% |
| IMR 3031 | <<locked>> | 80% | 36,753 psi | 61% | 2382 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 35,766 psi | 59% | 2303 fps | 95.5% |
| IMR 4166 Enduron | <<locked>> | 90% | 49,676 psi | 83% | 2516 fps | 95.2% |
| IMR 4198 | <<locked>> | 80% | 47,268 psi | 79% | 2418 fps | 100% |
| IMR 4831 | <<locked>> | 96% | 37,710 psi | 63% | 2425 fps | 95.4% |
| IMR 4895 | <<locked>> | 80% | 34,330 psi | 57% | 2326 fps | 95.7% |
| IMR 8208 XBR | <<locked>> | 80% | 39,581 psi | 66% | 2375 fps | 98.3% |
| Lovex D073.5 | <<locked>> | 80% | 44,338 psi | 74% | 2457 fps | 99.6% |
| Lovex D073.6 | <<locked>> | 80% | 35,853 psi | 60% | 2346 fps | 98.9% |
| Lovex S060 | <<locked>> | 80% | 38,609 psi | 64% | 2316 fps | 96.9% |
| Lovex S062 | <<locked>> | 80% | 33,431 psi | 56% | 2264 fps | 96.8% |
| Lovex S065 | <<locked>> | 96% | 44,672 psi | 74% | 2480 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 37,043 psi | 62% | 2326 fps | 97.8% |
| Norma 202 | <<locked>> | 80% | 36,999 psi | 61% | 2343 fps | 99.5% |
| Norma 203B | <<locked>> | 80% | 32,967 psi | 55% | 2287 fps | 95.1% |
| Norma URP | <<locked>> | 96% | 39,682 psi | 66% | 2470 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 82% | 34,621 psi | 58% | 2339 fps | 95.3% |
| Ramshot TAC | <<locked>> | 82% | 42,322 psi | 70% | 2425 fps | 95.1% |
| Ramshot Wild Boar | <<locked>> | 80% | 38,508 psi | 64% | 2392 fps | 96.9% |
| Ramshot X-Terminator | <<locked>> | 80% | 43,047 psi | 72% | 2421 fps | 97.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,976 psi | 43% | 1430 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 44,498 psi | 74% | 2461 fps | 99.8% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 47,398 psi | 79% | 2523 fps | 95.4% |
| ReloadSwiss RS 52 | 41.5 gr | 82% | 36,912 psi | 61% | 2431 fps | 95.8% |
| ReloadSwiss RS 60 | 41.2 gr | 80% | 28,877 psi | 48% | 2251 fps | 95.9% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 38,899 psi | 65% | 2480 fps | 95.1% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 42,960 psi | 71% | 2549 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 40,799 psi | 68% | 2375 fps | 99.7% |
| Rottweil R 902 | <<locked>> | 80% | 35,157 psi | 58% | 2280 fps | 97.3% |
| Rottweil R 903 | <<locked>> | 82% | 30,560 psi | 51% | 2238 fps | 95.1% |
| Shooters World Long Rifle | <<locked>> | 96% | 44,672 psi | 74% | 2480 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 35,853 psi | 60% | 2346 fps | 98.9% |
| Shooters World Precision | <<locked>> | 80% | 33,431 psi | 56% | 2264 fps | 96.8% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 47,079 psi | 78% | 2474 fps | 99.2% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 49,676 psi | 83% | 2549 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 33,837 psi | 56% | 2329 fps | 95.1% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 47,224 psi | 78% | 2467 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 40,263 psi | 67% | 2398 fps | 95.2% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 36,187 psi | 60% | 2333 fps | 96.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 38,667 psi | 64% | 2297 fps | 99.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 31,720 psi | 53% | 2175 fps | 99.2% |
| Somchem S321 | <<locked>> | 80% | 42,395 psi | 70% | 2451 fps | 99.1% |
| Somchem S335 | <<locked>> | 80% | 38,174 psi | 63% | 2303 fps | 99.9% |
| Somchem S341 | <<locked>> | 80% | 37,072 psi | 62% | 2343 fps | 96.4% |
| Somchem S355 | <<locked>> | 82% | 31,589 psi | 52% | 2244 fps | 95.2% |
| Somchem S365 | <<locked>> | 90% | 29,269 psi | 49% | 2267 fps | 95.3% |
| Vihtavuori N130 | <<locked>> | 80% | 43,888 psi | 73% | 2365 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 38,740 psi | 64% | 2300 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 34,026 psi | 57% | 2280 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 34,940 psi | 58% | 2283 fps | 99.4% |
| Vihtavuori N150 | <<locked>> | 80% | 28,137 psi | 47% | 2146 fps | 95.4% |
| Vihtavuori N160 | <<locked>> | 94% | 39,117 psi | 65% | 2421 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 80% | 39,653 psi | 66% | 2375 fps | 98.4% |
| Vihtavuori N540 | <<locked>> | 80% | 33,605 psi | 56% | 2270 fps | 98.8% |
| Vihtavuori N550 | <<locked>> | 96% | 40,712 psi | 68% | 2474 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 32,808 psi | 55% | 2257 fps | 95.2% |
| Winchester 748 | <<locked>> | 80% | 38,479 psi | 64% | 2411 fps | 98.9% |
| Winchester StaBALL Match | <<locked>> | 80% | 35,375 psi | 59% | 2336 fps | 96.6% |
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 | 178gr | Remington SP Extended-Range. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,756 fps; across all powders the maximum-charge window runs from 1,565 fps to 2,756 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 178.0 gr projectile in 0.308" calls for a 1:6.0 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 60, ReloadSwiss RS 52 rank at the top here: for .308 Win. Ackley Improved with the .308 | 178gr | Remington SP Extended-Range 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.