Load Specifications
Load data in caliber .308 Win. Ackley Improved with .308 | 160gr | Warner Tool Co. Flat Line bullet and 84 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon CFE223, Alliant Power Pro 1200-R and Winchester 748.
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 1680 | <<locked>> | 82% | 52,750 psi | 88% | 2552 fps | 100% |
| Accurate 2015 | <<locked>> | 94% | 52,083 psi | 87% | 2618 fps | 100% |
| Accurate 2200 | <<locked>> | 86% | 53,214 psi | 88% | 2694 fps | 97.1% |
| Accurate 2230 | <<locked>> | 86% | 53,940 psi | 90% | 2707 fps | 97.6% |
| Accurate 2460 | <<locked>> | 92% | 54,012 psi | 90% | 2680 fps | 99.9% |
| Accurate 2495ᴾ | <<locked>> | 100% | 50,473 psi | 84% | 2657 fps | 100% |
| Accurate 2520 | <<locked>> | 94% | 51,126 psi | 85% | 2680 fps | 99.7% |
| Accurate 4064ᴾ | <<locked>> | 100% | 46,818 psi | 78% | 2638 fps | 99.8% |
| Accurate LT-30 | <<locked>> | 88% | 53,896 psi | 90% | 2579 fps | 100% |
| Accurate LT-32 | <<locked>> | 88% | 54,389 psi | 90% | 2595 fps | 99.8% |
| ADI AR 2206H | <<locked>> | 98% | 54,172 psi | 90% | 2726 fps | 98.1% |
| ADI AR 2207 | <<locked>> | 84% | 51,517 psi | 86% | 2566 fps | 100% |
| ADI AR 2208ᴾ | <<locked>> | 100% | 48,718 psi | 81% | 2615 fps | 96.3% |
| ADI AR 2219 | <<locked>> | 88% | 53,055 psi | 88% | 2687 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 96% | 53,853 psi | 89% | 2690 fps | 99% |
| Alliant AR-Comp | <<locked>> | 96% | 51,996 psi | 86% | 2690 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 90% | 51,430 psi | 85% | 2740 fps | 98.4% |
| Alliant Power Pro 2000-MRᴾ | <<locked>> | 100% | 53,737 psi | 89% | 2805 fps | 96.9% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 46,818 psi | 78% | 2635 fps | 97.8% |
| Alliant Reloder-10x | <<locked>> | 90% | 52,446 psi | 87% | 2635 fps | 100% |
| Alliant Reloder-15ᴾ | <<locked>> | 100% | 51,227 psi | 85% | 2703 fps | 97.2% |
| Alliant Reloder-7 | <<locked>> | 84% | 52,794 psi | 88% | 2579 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 88% | 52,649 psi | 87% | 2579 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 98% | 53,940 psi | 90% | 2733 fps | 97% |
| Bofors RP3ᴾ | <<locked>> | 100% | 46,572 psi | 77% | 2644 fps | 97.8% |
| Hodgdon Benchmark | <<locked>> | 94% | 53,447 psi | 89% | 2638 fps | 99.3% |
| Hodgdon BL-C2 | <<locked>> | 96% | 51,866 psi | 86% | 2717 fps | 99.2% |
| Hodgdon CFE223 | <<locked>> | 94% | 53,940 psi | 90% | 2799 fps | 97.6% |
| Hodgdon H322 | <<locked>> | 90% | 51,140 psi | 85% | 2661 fps | 100% |
| Hodgdon H335 | <<locked>> | 90% | 52,431 psi | 87% | 2687 fps | 99.9% |
| Hodgdon H4198 | <<locked>> | 84% | 52,634 psi | 87% | 2579 fps | 100% |
| Hodgdon H4895 | <<locked>> | 96% | 51,097 psi | 85% | 2687 fps | 98.2% |
| Hodgdon LEVERevolutionᴾ | <<locked>> | 100% | 52,388 psi | 87% | 2756 fps | 98.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,489 psi | 56% | 1588 fps | 100% |
| Hodgdon VARGET | <<locked>> | 98% | 53,084 psi | 88% | 2694 fps | 98.3% |
| IMR 3031 | <<locked>> | 98% | 52,663 psi | 87% | 2736 fps | 100% |
| IMR 4064ᴾ | <<locked>> | 100% | 51,271 psi | 85% | 2651 fps | 97.1% |
| IMR 4198 | <<locked>> | 90% | 53,258 psi | 88% | 2598 fps | 100% |
| IMR 4895ᴾ | <<locked>> | 100% | 52,402 psi | 87% | 2736 fps | 98% |
| IMR 8208 XBR | <<locked>> | 96% | 53,853 psi | 89% | 2690 fps | 99% |
| Lovex D073.4 | <<locked>> | 86% | 54,230 psi | 90% | 2690 fps | 99.8% |
| Lovex D073.5 | <<locked>> | 92% | 53,969 psi | 90% | 2684 fps | 99.5% |
| Lovex D073.6 | <<locked>> | 98% | 52,127 psi | 87% | 2707 fps | 99.7% |
| Lovex S060 | <<locked>> | 96% | 52,330 psi | 87% | 2621 fps | 97.8% |
| Lovex S062ᴾ | <<locked>> | 100% | 50,125 psi | 83% | 2651 fps | 98.6% |
| Norma 200 | <<locked>> | 86% | 52,330 psi | 87% | 2612 fps | 100% |
| Norma 201 | <<locked>> | 98% | 52,953 psi | 88% | 2677 fps | 98.9% |
| Norma 202 | <<locked>> | 98% | 52,881 psi | 88% | 2694 fps | 100% |
| Norma 203Bᴾ | <<locked>> | 100% | 50,212 psi | 83% | 2690 fps | 97.5% |
| Ramshot Big Gameᴾ | <<locked>> | 100% | 50,589 psi | 84% | 2707 fps | 97.2% |
| Ramshot Wild Boar | <<locked>> | 96% | 53,243 psi | 88% | 2717 fps | 97.9% |
| Ramshot X-Terminator | <<locked>> | 92% | 52,591 psi | 87% | 2648 fps | 97.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,605 psi | 56% | 1627 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 92% | 54,259 psi | 90% | 2694 fps | 99.7% |
| ReloadSwiss RS 52ᴾ | <<locked>> | 100% | 53,809 psi | 89% | 2808 fps | 97.6% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 44,614 psi | 74% | 2674 fps | 98.7% |
| Rottweil R 901 | <<locked>> | 96% | 53,882 psi | 90% | 2674 fps | 99.9% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 52,997 psi | 88% | 2671 fps | 98.9% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 43,004 psi | 71% | 2572 fps | 96.7% |
| Shooters World AR Plus | <<locked>> | 86% | 54,230 psi | 90% | 2690 fps | 99.8% |
| Shooters World Match Rifle | <<locked>> | 98% | 52,127 psi | 87% | 2707 fps | 99.7% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 50,125 psi | 83% | 2651 fps | 98.6% |
| Shooters World Tactical Rifle | <<locked>> | 88% | 51,010 psi | 85% | 2605 fps | 98.3% |
| SNPE Vectan BA6 1/2 | <<locked>> | 84% | 52,083 psi | 87% | 2326 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 88% | 53,534 psi | 89% | 2697 fps | 99.9% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 45,687 psi | 76% | 2635 fps | 96.3% |
| SNPE Vectan SP 3 | <<locked>> | 90% | 53,142 psi | 88% | 2644 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 98% | 52,547 psi | 87% | 2697 fps | 97.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 96% | 52,562 psi | 87% | 2595 fps | 99.9% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 48,298 psi | 80% | 2546 fps | 100% |
| Somchem S321 | <<locked>> | 92% | 51,532 psi | 86% | 2680 fps | 98.9% |
| Somchem S335 | <<locked>> | 98% | 54,462 psi | 90% | 2641 fps | 100% |
| Somchem S341 | <<locked>> | 96% | 51,430 psi | 85% | 2664 fps | 97.5% |
| Somchem S355ᴾ | <<locked>> | 100% | 44,367 psi | 74% | 2582 fps | 96.8% |
| Vihtavuori N120 | <<locked>> | 84% | 51,517 psi | 86% | 2516 fps | 100% |
| Vihtavuori N130 | <<locked>> | 92% | 52,692 psi | 88% | 2585 fps | 100% |
| Vihtavuori N133 | <<locked>> | 96% | 51,996 psi | 86% | 2589 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 51,053 psi | 85% | 2654 fps | 100% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 53,345 psi | 89% | 2671 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 42,830 psi | 71% | 2526 fps | 97.7% |
| Vihtavuori N530 | <<locked>> | 94% | 51,227 psi | 85% | 2644 fps | 98.7% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 51,416 psi | 85% | 2664 fps | 99.8% |
| Winchester 748 | <<locked>> | 96% | 52,692 psi | 88% | 2733 fps | 99.5% |
| Winchester StaBALL Match | <<locked>> | 98% | 51,634 psi | 86% | 2700 fps | 98.2% |
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 1680 | <<locked>> | 80% | 49,472 psi | 82% | 2510 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 33,692 psi | 56% | 2310 fps | 99.3% |
| Accurate 2200 | <<locked>> | 82% | 46,615 psi | 77% | 2585 fps | 95.7% |
| Accurate 2230 | <<locked>> | 80% | 43,424 psi | 72% | 2536 fps | 95.4% |
| Accurate 2460 | <<locked>> | 80% | 36,201 psi | 60% | 2385 fps | 97.7% |
| Accurate 2495 | <<locked>> | 80% | 26,034 psi | 43% | 2195 fps | 97.7% |
| Accurate 2520 | <<locked>> | 80% | 31,502 psi | 52% | 2323 fps | 95.8% |
| Accurate 4064 | <<locked>> | 82% | 26,397 psi | 44% | 2218 fps | 95.1% |
| Accurate LT-30 | <<locked>> | 80% | 42,308 psi | 70% | 2402 fps | 99.7% |
| Accurate LT-32 | <<locked>> | 80% | 42,641 psi | 71% | 2411 fps | 98.6% |
| ADI AR 2206H | <<locked>> | 90% | 42,264 psi | 70% | 2530 fps | 95.7% |
| ADI AR 2207 | <<locked>> | 80% | 45,440 psi | 75% | 2480 fps | 100% |
| ADI AR 2208 | <<locked>> | 98% | 45,716 psi | 76% | 2566 fps | 95.6% |
| ADI AR 2219 | <<locked>> | 80% | 40,263 psi | 67% | 2484 fps | 99.4% |
| ADI Benchmark 8208 | <<locked>> | 84% | 37,275 psi | 62% | 2405 fps | 95.6% |
| Alliant AR-Comp | <<locked>> | 80% | 30,937 psi | 51% | 2333 fps | 100% |
| Alliant Power Pro 1200-R | 36 gr | 82% | 39,653 psi | 66% | 2530 fps | 95.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 96% | 47,224 psi | 78% | 2697 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 36,289 psi | 60% | 2438 fps | 95% |
| Alliant Reloder-10x | <<locked>> | 80% | 38,464 psi | 64% | 2415 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 42,192 psi | 70% | 2549 fps | 95% |
| Alliant Reloder-7 | <<locked>> | 80% | 46,688 psi | 78% | 2493 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 40,770 psi | 68% | 2395 fps | 99.6% |
| Baschieri & Pellagri 107 | <<locked>> | 94% | 47,253 psi | 79% | 2628 fps | 95.5% |
| Bofors RP3 | <<locked>> | 94% | 37,913 psi | 63% | 2487 fps | 95.7% |
| Hodgdon Benchmark | <<locked>> | 80% | 35,230 psi | 59% | 2316 fps | 95.6% |
| Hodgdon BL-C2 | <<locked>> | 84% | 34,563 psi | 57% | 2408 fps | 95.6% |
| Hodgdon CFE223 | 42.1 gr | 88% | 43,903 psi | 73% | 2628 fps | 95.3% |
| Hodgdon H322 | <<locked>> | 80% | 37,086 psi | 62% | 2421 fps | 98.9% |
| Hodgdon H335 | <<locked>> | 80% | 37,405 psi | 62% | 2434 fps | 98.2% |
| Hodgdon H4198 | <<locked>> | 80% | 46,586 psi | 77% | 2487 fps | 99.8% |
| Hodgdon H4895 | <<locked>> | 88% | 39,813 psi | 66% | 2490 fps | 95.7% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 38,174 psi | 63% | 2500 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,656 psi | 41% | 1414 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 38,812 psi | 64% | 2451 fps | 95.2% |
| IMR 3031 | <<locked>> | 80% | 29,428 psi | 49% | 2303 fps | 97.7% |
| IMR 4064 | <<locked>> | 94% | 42,496 psi | 71% | 2503 fps | 95.1% |
| IMR 4198 | <<locked>> | 80% | 39,871 psi | 66% | 2398 fps | 100% |
| IMR 4895 | <<locked>> | 92% | 40,669 psi | 68% | 2536 fps | 95.4% |
| IMR 8208 XBR | <<locked>> | 84% | 37,275 psi | 62% | 2405 fps | 95.6% |
| Lovex D073.4 | <<locked>> | 80% | 44,019 psi | 73% | 2536 fps | 98.7% |
| Lovex D073.5 | <<locked>> | 80% | 35,926 psi | 60% | 2382 fps | 96.4% |
| Lovex D073.6 | <<locked>> | 82% | 30,371 psi | 50% | 2306 fps | 95.3% |
| Lovex S060 | <<locked>> | 88% | 41,307 psi | 69% | 2434 fps | 95.3% |
| Lovex S062 | <<locked>> | 90% | 36,753 psi | 61% | 2415 fps | 95.7% |
| Norma 200 | <<locked>> | 80% | 43,366 psi | 72% | 2477 fps | 100% |
| Norma 201 | <<locked>> | 86% | 36,448 psi | 61% | 2392 fps | 95.5% |
| Norma 202 | <<locked>> | 80% | 29,907 psi | 50% | 2264 fps | 96% |
| Norma 203B | <<locked>> | 94% | 41,292 psi | 69% | 2539 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 94% | 41,597 psi | 69% | 2549 fps | 95% |
| Ramshot Wild Boar | <<locked>> | 88% | 40,959 psi | 68% | 2513 fps | 95.2% |
| Ramshot X-Terminator | <<locked>> | 86% | 43,410 psi | 72% | 2500 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,903 psi | 41% | 1453 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 36,811 psi | 61% | 2395 fps | 97.1% |
| ReloadSwiss RS 52 | <<locked>> | 94% | 44,092 psi | 73% | 2648 fps | 95.4% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 34,447 psi | 57% | 2448 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 33,576 psi | 56% | 2310 fps | 96.9% |
| Rottweil R 902 | <<locked>> | 88% | 36,709 psi | 61% | 2388 fps | 95.6% |
| Rottweil R 903 | <<locked>> | 96% | 37,826 psi | 63% | 2477 fps | 95.3% |
| Shooters World AR Plus | <<locked>> | 80% | 44,019 psi | 73% | 2536 fps | 98.7% |
| Shooters World Match Rifle | <<locked>> | 82% | 30,371 psi | 50% | 2306 fps | 95.3% |
| Shooters World Precision | <<locked>> | 90% | 36,753 psi | 61% | 2415 fps | 95.7% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 39,015 psi | 65% | 2405 fps | 95.7% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 47,050 psi | 78% | 2264 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 40,959 psi | 68% | 2493 fps | 98.8% |
| SNPE Vectan SP 11 | <<locked>> | 98% | 42,873 psi | 71% | 2582 fps | 95.5% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 39,102 psi | 65% | 2425 fps | 99.6% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 40,785 psi | 68% | 2497 fps | 95.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 32,256 psi | 54% | 2238 fps | 96.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 26,092 psi | 43% | 2106 fps | 95.4% |
| Somchem S321 | <<locked>> | 80% | 34,606 psi | 57% | 2372 fps | 95.1% |
| Somchem S335 | <<locked>> | 80% | 31,502 psi | 52% | 2241 fps | 97.4% |
| Somchem S341 | <<locked>> | 90% | 42,105 psi | 70% | 2513 fps | 95.4% |
| Somchem S355 | <<locked>> | 96% | 39,262 psi | 65% | 2487 fps | 95.4% |
| Vihtavuori N120 | <<locked>> | 80% | 45,440 psi | 75% | 2434 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 36,695 psi | 61% | 2333 fps | 99.9% |
| Vihtavuori N133 | <<locked>> | 80% | 32,053 psi | 53% | 2251 fps | 98.9% |
| Vihtavuori N135 | <<locked>> | 80% | 27,064 psi | 45% | 2208 fps | 97.9% |
| Vihtavuori N140 | <<locked>> | 80% | 28,340 psi | 47% | 2208 fps | 95.7% |
| Vihtavuori N150 | <<locked>> | 94% | 35,317 psi | 59% | 2385 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 84% | 37,057 psi | 62% | 2398 fps | 95.7% |
| Vihtavuori N540 | <<locked>> | 82% | 29,066 psi | 48% | 2241 fps | 95.3% |
| Winchester 748 | 37.7 gr | 82% | 33,301 psi | 55% | 2375 fps | 95.3% |
| Winchester StaBALL Match | <<locked>> | 90% | 39,624 psi | 66% | 2497 fps | 95.6% |
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 84 powders for .308 Win. Ackley Improved loaded with the .308 | 160gr | Warner Tool Co. Flat Line. ReloadSwiss RS 52 delivers the highest muzzle velocity at 2,808 fps; across all powders the maximum-charge window runs from 1,588 fps to 2,808 fps. Accurate 2495 gives the best case fill at 100 %, and 84 of the 84 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (415 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 160.0 gr projectile in 0.308" calls for a 1:10.5 twist; slower twists will usually not stabilise this weight. Accurate 2495, Accurate 4064, ADI AR 2208 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. Hodgdon CFE223, Alliant Power Pro 1200-R, Winchester 748 rank at the top here: for .308 Win. Ackley Improved with the .308 | 160gr | Warner Tool Co. Flat Line 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.