Load Specifications
Load data in caliber .308 Win. Ackley Improved with .308 | 170gr | Prvi Partizan FSP bullet and 89 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, Hodgdon CFE223 and Ramshot Big Game.
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% | 53,621 psi | 89% | 2602 fps | 100% |
| Accurate 2200 | <<locked>> | 82% | 53,838 psi | 89% | 2684 fps | 98.6% |
| Accurate 2460 | <<locked>> | 86% | 52,156 psi | 87% | 2625 fps | 100% |
| Accurate 2495 | <<locked>> | 96% | 53,635 psi | 89% | 2654 fps | 100% |
| Accurate 2520 | <<locked>> | 90% | 53,272 psi | 89% | 2677 fps | 100% |
| Accurate 4064 | <<locked>> | 98% | 53,403 psi | 89% | 2694 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 42,148 psi | 70% | 2579 fps | 96% |
| Accurate LT-30 | <<locked>> | 84% | 54,114 psi | 90% | 2552 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 51,097 psi | 85% | 2526 fps | 100% |
| ADI AR 2206H | <<locked>> | 92% | 52,605 psi | 87% | 2680 fps | 99.1% |
| ADI AR 2208 | <<locked>> | 98% | 53,374 psi | 89% | 2671 fps | 98.6% |
| ADI AR 2219 | <<locked>> | 84% | 54,056 psi | 90% | 2664 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 90% | 51,996 psi | 86% | 2638 fps | 99.6% |
| Alliant AR-Comp | <<locked>> | 90% | 51,256 psi | 85% | 2628 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 86% | 53,432 psi | 89% | 2740 fps | 99.5% |
| Alliant Power Pro 2000-MR | <<locked>> | 94% | 51,895 psi | 86% | 2772 fps | 98.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 98% | 52,504 psi | 87% | 2694 fps | 99.6% |
| Alliant Reloder-10x | <<locked>> | 86% | 53,722 psi | 89% | 2612 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 96% | 53,505 psi | 89% | 2713 fps | 98.8% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 43,018 psi | 71% | 2589 fps | 96.1% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 49,458 psi | 82% | 2736 fps | 99.1% |
| Baschieri & Pellagri 106 | <<locked>> | 84% | 52,895 psi | 88% | 2552 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 92% | 52,011 psi | 86% | 2687 fps | 98.2% |
| Bofors RP3 | <<locked>> | 98% | 52,663 psi | 87% | 2707 fps | 99.6% |
| Hodgdon Benchmark | <<locked>> | 88% | 51,300 psi | 85% | 2585 fps | 99.8% |
| Hodgdon BL-C2 | <<locked>> | 92% | 53,853 psi | 89% | 2713 fps | 99.9% |
| Hodgdon CFE223 | <<locked>> | 88% | 51,938 psi | 86% | 2746 fps | 98.7% |
| Hodgdon H322 | <<locked>> | 86% | 52,620 psi | 87% | 2644 fps | 100% |
| Hodgdon H335 | <<locked>> | 86% | 53,940 psi | 90% | 2674 fps | 100% |
| Hodgdon H380 | <<locked>> | 96% | 50,995 psi | 85% | 2664 fps | 97.3% |
| Hodgdon H4895 | <<locked>> | 92% | 52,997 psi | 88% | 2690 fps | 99.4% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 39,189 psi | 65% | 2480 fps | 96.8% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 51,169 psi | 85% | 2713 fps | 99.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,229 psi | 57% | 1594 fps | 100% |
| Hodgdon VARGET | <<locked>> | 94% | 54,433 psi | 90% | 2694 fps | 99.5% |
| IMR 3031 | <<locked>> | 92% | 51,938 psi | 86% | 2684 fps | 100% |
| IMR 4064 | <<locked>> | 96% | 53,026 psi | 88% | 2657 fps | 98.8% |
| IMR 4198 | <<locked>> | 86% | 54,128 psi | 90% | 2572 fps | 100% |
| IMR 4895 | <<locked>> | 94% | 51,387 psi | 85% | 2694 fps | 99% |
| IMR 8208 XBR | <<locked>> | 90% | 51,996 psi | 86% | 2638 fps | 99.6% |
| Lovex D073.5 | <<locked>> | 86% | 51,880 psi | 86% | 2628 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 92% | 51,372 psi | 85% | 2661 fps | 100% |
| Lovex S060 | <<locked>> | 92% | 53,229 psi | 88% | 2615 fps | 99.1% |
| Lovex S062 | <<locked>> | 96% | 52,315 psi | 87% | 2657 fps | 99.7% |
| Lovex S065ᴾ | <<locked>> | 100% | 47,979 psi | 80% | 2585 fps | 95.7% |
| Norma 200 | <<locked>> | 82% | 53,838 psi | 89% | 2585 fps | 100% |
| Norma 201 | <<locked>> | 92% | 51,271 psi | 85% | 2628 fps | 99.6% |
| Norma 202 | <<locked>> | 92% | 51,721 psi | 86% | 2641 fps | 100% |
| Norma 203B | <<locked>> | 96% | 52,605 psi | 87% | 2700 fps | 99.1% |
| Norma URPᴾ | <<locked>> | 100% | 42,917 psi | 71% | 2582 fps | 95.9% |
| Ramshot Big Game | <<locked>> | 96% | 52,692 psi | 88% | 2720 fps | 99% |
| Ramshot TAC | <<locked>> | 90% | 52,721 psi | 88% | 2651 fps | 96.9% |
| Ramshot Wild Boar | <<locked>> | 90% | 51,329 psi | 85% | 2664 fps | 98.9% |
| Ramshot X-Terminator | <<locked>> | 88% | 53,330 psi | 89% | 2641 fps | 99% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,722 psi | 58% | 1637 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 51,851 psi | 86% | 2631 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 94% | 52,982 psi | 88% | 2772 fps | 98.8% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 52,881 psi | 88% | 2802 fps | 100% |
| Rottweil R 901 | <<locked>> | 90% | 52,475 psi | 87% | 2621 fps | 100% |
| Rottweil R 902 | <<locked>> | 94% | 51,590 psi | 86% | 2625 fps | 99.6% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 52,228 psi | 87% | 2690 fps | 99.4% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 47,979 psi | 80% | 2585 fps | 95.7% |
| Shooters World Match Rifle | <<locked>> | 92% | 51,372 psi | 85% | 2661 fps | 100% |
| Shooters World Precision | <<locked>> | 96% | 52,315 psi | 87% | 2657 fps | 99.7% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 51,895 psi | 86% | 2598 fps | 99.4% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 51,198 psi | 85% | 2628 fps | 100% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 54,201 psi | 90% | 2749 fps | 99.2% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 51,503 psi | 86% | 2585 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 92% | 54,027 psi | 90% | 2674 fps | 97.7% |
| SNPE Vectan SP 9 | <<locked>> | 94% | 54,389 psi | 90% | 2700 fps | 99.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 92% | 53,940 psi | 90% | 2589 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 98% | 52,924 psi | 88% | 2579 fps | 100% |
| Somchem S321 | <<locked>> | 88% | 53,084 psi | 88% | 2674 fps | 99.8% |
| Somchem S335 | <<locked>> | 92% | 52,591 psi | 87% | 2585 fps | 100% |
| Somchem S341 | <<locked>> | 92% | 53,229 psi | 88% | 2667 fps | 99% |
| Somchem S355ᴾ | <<locked>> | 100% | 52,852 psi | 88% | 2690 fps | 99.4% |
| Somchem S365ᴾ | <<locked>> | 100% | 37,956 psi | 63% | 2526 fps | 98% |
| Vihtavuori N130 | <<locked>> | 88% | 53,664 psi | 89% | 2562 fps | 100% |
| Vihtavuori N133 | <<locked>> | 92% | 53,737 psi | 89% | 2579 fps | 100% |
| Vihtavuori N135 | <<locked>> | 96% | 53,693 psi | 89% | 2644 fps | 100% |
| Vihtavuori N140 | <<locked>> | 94% | 52,156 psi | 87% | 2621 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 51,256 psi | 85% | 2631 fps | 99.8% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 45,194 psi | 75% | 2582 fps | 96.4% |
| Vihtavuori N530 | <<locked>> | 90% | 52,547 psi | 87% | 2641 fps | 99.7% |
| Vihtavuori N540 | <<locked>> | 96% | 53,679 psi | 89% | 2664 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 44,237 psi | 73% | 2589 fps | 96% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 46,572 psi | 77% | 2575 fps | 98.5% |
| Winchester 748 | <<locked>> | 90% | 51,445 psi | 85% | 2684 fps | 99.9% |
| Winchester StaBALL Match | <<locked>> | 94% | 53,954 psi | 90% | 2710 fps | 99.5% |
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% | 39,305 psi | 65% | 2385 fps | 100% |
| Accurate 2200 | <<locked>> | 80% | 50,415 psi | 84% | 2628 fps | 98.1% |
| Accurate 2460 | <<locked>> | 80% | 42,656 psi | 71% | 2477 fps | 99.7% |
| Accurate 2495 | <<locked>> | 80% | 31,865 psi | 53% | 2297 fps | 99.8% |
| Accurate 2520 | <<locked>> | 80% | 37,985 psi | 63% | 2428 fps | 99% |
| Accurate 4064 | <<locked>> | 80% | 30,168 psi | 50% | 2277 fps | 98% |
| Accurate 4350 | <<locked>> | 98% | 39,204 psi | 65% | 2523 fps | 95.1% |
| Accurate LT-30 | <<locked>> | 80% | 47,892 psi | 80% | 2467 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 48,240 psi | 80% | 2484 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 80% | 36,042 psi | 60% | 2379 fps | 95.5% |
| ADI AR 2208 | <<locked>> | 88% | 39,494 psi | 66% | 2431 fps | 95.7% |
| ADI AR 2219 | <<locked>> | 80% | 47,297 psi | 79% | 2569 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 37,971 psi | 63% | 2395 fps | 97.4% |
| Alliant AR-Comp | <<locked>> | 80% | 36,767 psi | 61% | 2411 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 43,671 psi | 73% | 2575 fps | 98.2% |
| Alliant Power Pro 2000-MR | 44.7 gr | 86% | 39,653 psi | 66% | 2539 fps | 95.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 31,662 psi | 53% | 2306 fps | 95.1% |
| Alliant Reloder-10x | <<locked>> | 80% | 44,628 psi | 74% | 2480 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 36,535 psi | 61% | 2411 fps | 95% |
| Alliant Reloder-16 | <<locked>> | 98% | 40,611 psi | 67% | 2539 fps | 95.3% |
| Alliant Reloder-17 | <<locked>> | 90% | 35,737 psi | 59% | 2464 fps | 95.5% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 46,572 psi | 77% | 2464 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 39,900 psi | 66% | 2477 fps | 95.4% |
| Bofors RP3 | <<locked>> | 84% | 32,822 psi | 55% | 2346 fps | 95.7% |
| Hodgdon Benchmark | <<locked>> | 80% | 40,393 psi | 67% | 2402 fps | 98.5% |
| Hodgdon BL-C2 | <<locked>> | 80% | 35,955 psi | 60% | 2408 fps | 97.6% |
| Hodgdon CFE223 | 42.6 gr | 80% | 39,566 psi | 66% | 2526 fps | 96% |
| Hodgdon H322 | <<locked>> | 80% | 43,337 psi | 72% | 2503 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 43,888 psi | 73% | 2523 fps | 99.9% |
| Hodgdon H380 | <<locked>> | 90% | 41,843 psi | 70% | 2507 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 36,260 psi | 60% | 2388 fps | 96.3% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 34,693 psi | 58% | 2385 fps | 95.2% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 32,460 psi | 54% | 2349 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,599 psi | 43% | 1427 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 35,041 psi | 58% | 2349 fps | 95.7% |
| IMR 3031 | <<locked>> | 80% | 34,983 psi | 58% | 2402 fps | 99.8% |
| IMR 4064 | <<locked>> | 84% | 36,593 psi | 61% | 2369 fps | 95.1% |
| IMR 4198 | <<locked>> | 80% | 45,527 psi | 76% | 2451 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 35,012 psi | 58% | 2388 fps | 95.3% |
| IMR 8208 XBR | <<locked>> | 80% | 37,971 psi | 63% | 2395 fps | 97.4% |
| Lovex D073.5 | <<locked>> | 80% | 42,380 psi | 70% | 2477 fps | 99.1% |
| Lovex D073.6 | <<locked>> | 80% | 34,113 psi | 57% | 2359 fps | 98.1% |
| Lovex S060 | <<locked>> | 80% | 37,173 psi | 62% | 2336 fps | 95.9% |
| Lovex S062 | <<locked>> | 80% | 31,923 psi | 53% | 2280 fps | 95.7% |
| Lovex S065 | <<locked>> | 98% | 45,339 psi | 75% | 2539 fps | 95% |
| Norma 200 | <<locked>> | 80% | 50,488 psi | 84% | 2543 fps | 100% |
| Norma 201 | <<locked>> | 80% | 35,462 psi | 59% | 2343 fps | 96.8% |
| Norma 202 | <<locked>> | 80% | 35,360 psi | 59% | 2359 fps | 98.9% |
| Norma 203B | <<locked>> | 84% | 35,868 psi | 60% | 2402 fps | 95.5% |
| Norma URP | <<locked>> | 98% | 40,161 psi | 67% | 2530 fps | 95.1% |
| Ramshot Big Game | 44.7 gr | 86% | 37,840 psi | 63% | 2461 fps | 95.8% |
| Ramshot TAC | <<locked>> | 86% | 46,325 psi | 77% | 2546 fps | 95.5% |
| Ramshot Wild Boar | <<locked>> | 80% | 36,869 psi | 61% | 2405 fps | 95.7% |
| Ramshot X-Terminator | <<locked>> | 80% | 41,394 psi | 69% | 2441 fps | 96.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,643 psi | 43% | 1460 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 42,786 psi | 71% | 2484 fps | 99.4% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 37,594 psi | 62% | 2497 fps | 95.3% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 29,457 psi | 49% | 2310 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 39,175 psi | 65% | 2398 fps | 99.3% |
| Rottweil R 902 | <<locked>> | 80% | 33,649 psi | 56% | 2297 fps | 96.2% |
| Rottweil R 903 | <<locked>> | 86% | 32,996 psi | 55% | 2343 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 98% | 45,339 psi | 75% | 2539 fps | 95% |
| Shooters World Match Rifle | <<locked>> | 80% | 34,113 psi | 57% | 2359 fps | 98.1% |
| Shooters World Precision | <<locked>> | 80% | 31,923 psi | 53% | 2280 fps | 95.7% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 45,281 psi | 75% | 2497 fps | 98.6% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 47,718 psi | 79% | 2575 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 36,985 psi | 61% | 2448 fps | 95.6% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 45,324 psi | 75% | 2493 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 43,874 psi | 73% | 2513 fps | 95.5% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 36,927 psi | 61% | 2398 fps | 95.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 37,159 psi | 62% | 2320 fps | 99.1% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 30,342 psi | 50% | 2192 fps | 98.5% |
| Somchem S321 | <<locked>> | 80% | 40,625 psi | 67% | 2470 fps | 98.4% |
| Somchem S335 | <<locked>> | 80% | 36,680 psi | 61% | 2326 fps | 99.5% |
| Somchem S341 | <<locked>> | 80% | 35,462 psi | 59% | 2359 fps | 95.1% |
| Somchem S355 | <<locked>> | 86% | 34,360 psi | 57% | 2356 fps | 95.6% |
| Somchem S365 | <<locked>> | 94% | 31,560 psi | 52% | 2372 fps | 95.6% |
| Vihtavuori N130 | <<locked>> | 80% | 42,192 psi | 70% | 2395 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 37,188 psi | 62% | 2323 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 32,387 psi | 54% | 2297 fps | 99.8% |
| Vihtavuori N140 | <<locked>> | 80% | 33,388 psi | 55% | 2300 fps | 98.7% |
| Vihtavuori N150 | <<locked>> | 84% | 30,647 psi | 51% | 2254 fps | 95.8% |
| Vihtavuori N160 | <<locked>> | 98% | 42,322 psi | 70% | 2530 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 80% | 38,000 psi | 63% | 2395 fps | 97.6% |
| Vihtavuori N540 | <<locked>> | 80% | 32,126 psi | 53% | 2287 fps | 98% |
| Vihtavuori N550 | <<locked>> | 98% | 41,437 psi | 69% | 2536 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 35,853 psi | 60% | 2369 fps | 95.6% |
| Winchester 748 | <<locked>> | 80% | 36,709 psi | 61% | 2428 fps | 98% |
| Winchester StaBALL Match | <<locked>> | 80% | 33,794 psi | 56% | 2349 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 89 powders for .308 Win. Ackley Improved loaded with the .308 | 170gr | Prvi Partizan FSP. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,802 fps; across all powders the maximum-charge window runs from 1,594 fps to 2,802 fps. Accurate 4350 gives the best case fill at 100 %, and 89 of the 89 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 170.0 gr projectile in 0.308" calls for a 1:16.0 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, Hodgdon CFE223, Ramshot Big Game rank at the top here: for .308 Win. Ackley Improved with the .308 | 170gr | Prvi Partizan FSP 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.