Load Specifications
Load data in caliber .308 Win. Ackley Improved with .308 | 140gr | Barnes RRLP bullet and 68 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 1200-R, Hodgdon H322 and SNPE Vectan SP 10.
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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Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 84% | 52,315 psi | 87% | 2726 fps | 100% |
| Accurate 2015 | <<locked>> | 98% | 53,287 psi | 89% | 2822 fps | 100% |
| Accurate 2460 | <<locked>> | 94% | 52,098 psi | 87% | 2835 fps | 99.3% |
| Accurate 2495ᴾ | <<locked>> | 100% | 44,657 psi | 74% | 2759 fps | 100% |
| Accurate 2520 | <<locked>> | 98% | 52,663 psi | 87% | 2884 fps | 99.1% |
| Accurate 4064ᴾ | <<locked>> | 100% | 41,466 psi | 69% | 2726 fps | 98.4% |
| Accurate LT-30 | <<locked>> | 90% | 52,837 psi | 88% | 2743 fps | 99.9% |
| Accurate LT-32 | <<locked>> | 90% | 53,330 psi | 89% | 2753 fps | 99.1% |
| ADI AR 2206Hᴾ | <<locked>> | 100% | 52,431 psi | 87% | 2871 fps | 96.4% |
| ADI AR 2207 | <<locked>> | 88% | 53,229 psi | 88% | 2782 fps | 100% |
| ADI AR 2219 | <<locked>> | 90% | 51,271 psi | 85% | 2844 fps | 99.8% |
| ADI Benchmark 8208 | <<locked>> | 98% | 52,344 psi | 87% | 2841 fps | 97.6% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 52,750 psi | 88% | 2894 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 94% | 52,794 psi | 88% | 2943 fps | 97.3% |
| Alliant Reloder-10x | <<locked>> | 94% | 53,679 psi | 89% | 2841 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 86% | 51,517 psi | 86% | 2749 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 90% | 51,590 psi | 86% | 2736 fps | 99.9% |
| Hodgdon Benchmark | <<locked>> | 96% | 52,054 psi | 86% | 2792 fps | 98.1% |
| Hodgdon BL-C2ᴾ | <<locked>> | 100% | 53,461 psi | 89% | 2917 fps | 98.4% |
| Hodgdon H322 | <<locked>> | 94% | 53,200 psi | 88% | 2874 fps | 99.9% |
| Hodgdon H335 | <<locked>> | 94% | 54,462 psi | 90% | 2897 fps | 99.6% |
| Hodgdon H4198 | <<locked>> | 86% | 51,721 psi | 86% | 2743 fps | 99.6% |
| Hodgdon H4895ᴾ | <<locked>> | 100% | 52,721 psi | 88% | 2887 fps | 97.1% |
| Hodgdon LEVERevolutionᴾ | <<locked>> | 100% | 47,645 psi | 79% | 2844 fps | 96.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,692 psi | 54% | 1696 fps | 100% |
| Hodgdon VARGETᴾ | <<locked>> | 100% | 51,256 psi | 85% | 2838 fps | 96.6% |
| IMR 3031ᴾ | <<locked>> | 100% | 50,198 psi | 83% | 2894 fps | 100% |
| IMR 4198 | <<locked>> | 92% | 51,996 psi | 86% | 2772 fps | 100% |
| IMR 4227 | <<locked>> | 82% | 52,011 psi | 86% | 2700 fps | 100% |
| IMR 8208 XBR | <<locked>> | 98% | 52,344 psi | 87% | 2841 fps | 97.6% |
| Lovex D073.4 | <<locked>> | 88% | 52,576 psi | 87% | 2851 fps | 98.9% |
| Lovex D073.5 | <<locked>> | 94% | 52,373 psi | 87% | 2838 fps | 98.5% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 49,719 psi | 83% | 2851 fps | 98.8% |
| Lovex S053 | <<locked>> | 84% | 53,693 psi | 89% | 2687 fps | 100% |
| Lovex S060ᴾ | <<locked>> | 100% | 54,259 psi | 90% | 2815 fps | 96.7% |
| Lovex S062ᴾ | <<locked>> | 100% | 45,324 psi | 75% | 2743 fps | 96.4% |
| Norma 200 | <<locked>> | 90% | 53,838 psi | 89% | 2822 fps | 100% |
| Norma 201ᴾ | <<locked>> | 100% | 50,966 psi | 85% | 2822 fps | 97.5% |
| Norma 202ᴾ | <<locked>> | 100% | 51,111 psi | 85% | 2844 fps | 99.4% |
| Ramshot Wild Boar | <<locked>> | 98% | 51,605 psi | 86% | 2864 fps | 96.1% |
| Ramshot X-Terminator | <<locked>> | 94% | 51,198 psi | 85% | 2792 fps | 95.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,706 psi | 54% | 1736 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 82% | 51,953 psi | 86% | 2736 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 94% | 52,489 psi | 87% | 2844 fps | 98.8% |
| Rottweil R 901 | <<locked>> | 98% | 52,127 psi | 87% | 2828 fps | 99.3% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 48,153 psi | 80% | 2766 fps | 96.9% |
| Shooters World AR Plus | <<locked>> | 88% | 52,576 psi | 87% | 2851 fps | 98.9% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 49,719 psi | 83% | 2851 fps | 98.8% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 45,324 psi | 75% | 2743 fps | 96.4% |
| Shooters World Tactical Rifle | <<locked>> | 92% | 53,563 psi | 89% | 2815 fps | 97.4% |
| SNPE Vectan BA6 1/2 | <<locked>> | 88% | 54,244 psi | 90% | 2536 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 90% | 52,025 psi | 86% | 2854 fps | 99.4% |
| SNPE Vectan SP 3 | <<locked>> | 92% | 51,706 psi | 86% | 2812 fps | 100% |
| SNPE Vectan SP 9ᴾ | <<locked>> | 100% | 50,691 psi | 84% | 2838 fps | 96% |
| SNPE Vectan Tubal 3000 | <<locked>> | 98% | 51,242 psi | 85% | 2749 fps | 99.2% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 44,005 psi | 73% | 2648 fps | 99% |
| Somchem S321 | <<locked>> | 96% | 53,751 psi | 89% | 2887 fps | 98.2% |
| Somchem S335ᴾ | <<locked>> | 100% | 52,678 psi | 88% | 2795 fps | 99.8% |
| Somchem S341ᴾ | <<locked>> | 100% | 53,621 psi | 89% | 2864 fps | 96.3% |
| Vihtavuori N120 | <<locked>> | 88% | 53,243 psi | 88% | 2730 fps | 100% |
| Vihtavuori N130 | <<locked>> | 94% | 51,111 psi | 85% | 2746 fps | 100% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 53,809 psi | 89% | 2795 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 45,818 psi | 76% | 2762 fps | 100% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 48,269 psi | 80% | 2772 fps | 99.2% |
| Vihtavuori N530 | <<locked>> | 98% | 53,200 psi | 88% | 2844 fps | 97.8% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 46,470 psi | 77% | 2759 fps | 98.6% |
| Winchester 748 | <<locked>> | 98% | 50,720 psi | 84% | 2877 fps | 98.3% |
| Winchester StaBALL Matchᴾ | <<locked>> | 100% | 50,024 psi | 83% | 2844 fps | 96.5% |
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 1680 | <<locked>> | 80% | 45,788 psi | 76% | 2628 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 30,327 psi | 50% | 2395 fps | 97.4% |
| Accurate 2460 | <<locked>> | 82% | 34,751 psi | 58% | 2516 fps | 95.8% |
| Accurate 2495 | <<locked>> | 82% | 24,598 psi | 41% | 2310 fps | 95.5% |
| Accurate 2520 | <<locked>> | 86% | 34,548 psi | 57% | 2552 fps | 95.2% |
| Accurate 4064 | <<locked>> | 92% | 32,024 psi | 53% | 2523 fps | 95.8% |
| Accurate LT-30 | <<locked>> | 80% | 39,030 psi | 65% | 2503 fps | 98.3% |
| Accurate LT-32 | <<locked>> | 80% | 39,407 psi | 65% | 2510 fps | 96.6% |
| ADI AR 2206H | <<locked>> | 96% | 46,209 psi | 77% | 2766 fps | 95% |
| ADI AR 2207 | <<locked>> | 80% | 41,423 psi | 69% | 2602 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 36,622 psi | 61% | 2579 fps | 97.6% |
| ADI Benchmark 8208 | <<locked>> | 92% | 43,381 psi | 72% | 2687 fps | 95.7% |
| Alliant AR-Comp | <<locked>> | 80% | 27,804 psi | 46% | 2408 fps | 98.8% |
| Alliant Power Pro 1200-R | 39.2 gr | 88% | 43,323 psi | 72% | 2772 fps | 95.1% |
| Alliant Reloder-10x | <<locked>> | 80% | 34,867 psi | 58% | 2513 fps | 99.3% |
| Alliant Reloder-7 | <<locked>> | 80% | 42,830 psi | 71% | 2612 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 37,449 psi | 62% | 2493 fps | 98.2% |
| Hodgdon Benchmark | <<locked>> | 86% | 38,827 psi | 65% | 2549 fps | 95.1% |
| Hodgdon BL-C2 | <<locked>> | 92% | 40,553 psi | 67% | 2697 fps | 95.8% |
| Hodgdon H322 | 35.6 gr | 80% | 33,504 psi | 56% | 2507 fps | 96.7% |
| Hodgdon H335 | <<locked>> | 80% | 33,852 psi | 56% | 2516 fps | 95.7% |
| Hodgdon H4198 | <<locked>> | 80% | 42,975 psi | 71% | 2595 fps | 98.6% |
| Hodgdon H4895 | <<locked>> | 94% | 43,555 psi | 72% | 2726 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 98% | 44,440 psi | 74% | 2785 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,134 psi | 40% | 1516 fps | 100% |
| Hodgdon VARGET | <<locked>> | 96% | 45,455 psi | 76% | 2740 fps | 95.3% |
| IMR 3031 | <<locked>> | 82% | 28,282 psi | 47% | 2421 fps | 95.5% |
| IMR 4198 | <<locked>> | 80% | 36,608 psi | 61% | 2507 fps | 99.9% |
| IMR 4227 | <<locked>> | 80% | 48,646 psi | 81% | 2651 fps | 100% |
| IMR 8208 XBR | <<locked>> | 92% | 43,381 psi | 72% | 2687 fps | 95.7% |
| Lovex D073.4 | <<locked>> | 80% | 39,740 psi | 66% | 2625 fps | 96.5% |
| Lovex D073.5 | <<locked>> | 84% | 37,043 psi | 62% | 2566 fps | 95% |
| Lovex D073.6 | <<locked>> | 90% | 35,273 psi | 59% | 2582 fps | 95.5% |
| Lovex S053 | <<locked>> | 80% | 47,877 psi | 80% | 2605 fps | 100% |
| Lovex S060 | <<locked>> | 96% | 47,906 psi | 80% | 2713 fps | 95.3% |
| Lovex S062 | <<locked>> | 98% | 42,511 psi | 71% | 2690 fps | 95.7% |
| Norma 200 | <<locked>> | 80% | 39,581 psi | 66% | 2592 fps | 100% |
| Norma 201 | <<locked>> | 94% | 42,380 psi | 70% | 2671 fps | 95.6% |
| Norma 202 | <<locked>> | 86% | 32,692 psi | 54% | 2490 fps | 95.3% |
| Ramshot Wild Boar | <<locked>> | 96% | 48,109 psi | 80% | 2805 fps | 95.3% |
| Ramshot X-Terminator | <<locked>> | 92% | 48,138 psi | 80% | 2743 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,018 psi | 40% | 1549 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 48,733 psi | 81% | 2687 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 35,781 psi | 59% | 2533 fps | 95.1% |
| Rottweil R 901 | <<locked>> | 84% | 34,548 psi | 57% | 2493 fps | 95.7% |
| Rottweil R 902 | <<locked>> | 96% | 42,670 psi | 71% | 2667 fps | 95.6% |
| Shooters World AR Plus | <<locked>> | 80% | 39,740 psi | 66% | 2625 fps | 96.5% |
| Shooters World Match Rifle | <<locked>> | 90% | 35,273 psi | 59% | 2582 fps | 95.5% |
| Shooters World Precision | <<locked>> | 98% | 42,511 psi | 71% | 2690 fps | 95.7% |
| Shooters World Tactical Rifle | <<locked>> | 86% | 43,468 psi | 72% | 2644 fps | 95.2% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 44,106 psi | 73% | 2398 fps | 100% |
| SNPE Vectan SP 10 | 38.1 gr | 80% | 37,173 psi | 62% | 2582 fps | 96.7% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 35,418 psi | 59% | 2516 fps | 98.1% |
| SNPE Vectan SP 9 | <<locked>> | 98% | 47,616 psi | 79% | 2785 fps | 95.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 33,301 psi | 55% | 2415 fps | 95.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 30,356 psi | 50% | 2362 fps | 95.5% |
| Somchem S321 | <<locked>> | 88% | 40,828 psi | 68% | 2664 fps | 95.4% |
| Somchem S335 | <<locked>> | 82% | 30,618 psi | 51% | 2372 fps | 95.5% |
| Somchem S341 | <<locked>> | 98% | 49,864 psi | 83% | 2805 fps | 95.6% |
| Vihtavuori N120 | <<locked>> | 80% | 41,539 psi | 69% | 2559 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 33,460 psi | 56% | 2428 fps | 98.9% |
| Vihtavuori N133 | <<locked>> | 80% | 29,095 psi | 48% | 2333 fps | 96.8% |
| Vihtavuori N135 | <<locked>> | 82% | 25,962 psi | 43% | 2326 fps | 95.8% |
| Vihtavuori N140 | <<locked>> | 86% | 30,980 psi | 51% | 2425 fps | 95% |
| Vihtavuori N530 | <<locked>> | 90% | 40,872 psi | 68% | 2635 fps | 95.1% |
| Vihtavuori N540 | <<locked>> | 90% | 33,794 psi | 56% | 2510 fps | 95.5% |
| Winchester 748 | <<locked>> | 90% | 39,073 psi | 65% | 2664 fps | 95.5% |
| Winchester StaBALL Match | <<locked>> | 98% | 46,905 psi | 78% | 2792 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 68 powders for .308 Win. Ackley Improved loaded with the .308 | 140gr | Barnes RRLP. Alliant Power Pro 1200-R delivers the highest muzzle velocity at 2,943 fps; across all powders the maximum-charge window runs from 1,696 fps to 2,943 fps. Accurate 2495 gives the best case fill at 100 %, and 68 of the 68 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (415 MPa), the top charges use 54–90 %, leaving at least 10 % headroom. The 140.0 gr projectile in 0.308" calls for a 1:11.0 twist; slower twists will usually not stabilise this weight. Accurate 2495, Accurate 4064, ADI AR 2206H 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 1200-R, Hodgdon H322, SNPE Vectan SP 10 rank at the top here: for .308 Win. Ackley Improved with the .308 | 140gr | Barnes RRLP 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.