Load Specifications
Load data in caliber .308 Win. Ackley Improved with .308 | 158gr | MRR Green Sport bullet and 85 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% | 52,359 psi | 87% | 2579 fps | 100% |
| Accurate 2015 | <<locked>> | 96% | 54,360 psi | 90% | 2684 fps | 100% |
| Accurate 2200 | <<locked>> | 86% | 52,808 psi | 88% | 2720 fps | 97.1% |
| Accurate 2230 | <<locked>> | 86% | 53,156 psi | 88% | 2730 fps | 97.5% |
| Accurate 2460 | <<locked>> | 92% | 53,316 psi | 89% | 2707 fps | 99.9% |
| Accurate 2495ᴾ | <<locked>> | 100% | 49,385 psi | 82% | 2677 fps | 100% |
| Accurate 2520 | <<locked>> | 96% | 53,940 psi | 90% | 2753 fps | 99.9% |
| Accurate 4064ᴾ | <<locked>> | 100% | 45,759 psi | 76% | 2657 fps | 99.8% |
| Accurate LT-30 | <<locked>> | 88% | 53,316 psi | 89% | 2602 fps | 100% |
| Accurate LT-32 | <<locked>> | 88% | 53,795 psi | 89% | 2621 fps | 99.8% |
| ADI AR 2206H | <<locked>> | 98% | 53,635 psi | 89% | 2749 fps | 98.1% |
| ADI AR 2207 | <<locked>> | 86% | 54,041 psi | 90% | 2631 fps | 100% |
| ADI AR 2208ᴾ | <<locked>> | 100% | 48,341 psi | 80% | 2641 fps | 96.3% |
| ADI AR 2219 | <<locked>> | 88% | 52,533 psi | 87% | 2713 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 96% | 53,432 psi | 89% | 2717 fps | 99% |
| Alliant AR-Comp | <<locked>> | 96% | 51,343 psi | 85% | 2713 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 92% | 54,360 psi | 90% | 2815 fps | 98.8% |
| Alliant Power Pro 2000-MRᴾ | <<locked>> | 100% | 53,447 psi | 89% | 2835 fps | 97% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 46,296 psi | 77% | 2657 fps | 97.7% |
| Alliant Reloder-10x | <<locked>> | 90% | 51,576 psi | 86% | 2657 fps | 100% |
| Alliant Reloder-15ᴾ | <<locked>> | 100% | 50,589 psi | 84% | 2726 fps | 97.1% |
| Alliant Reloder-7 | <<locked>> | 84% | 52,040 psi | 86% | 2602 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 88% | 52,098 psi | 87% | 2602 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 98% | 53,316 psi | 89% | 2759 fps | 96.9% |
| Bofors RP3ᴾ | <<locked>> | 100% | 45,745 psi | 76% | 2664 fps | 97.7% |
| Hodgdon Benchmark | <<locked>> | 94% | 53,185 psi | 88% | 2667 fps | 99.3% |
| Hodgdon BL-C2 | <<locked>> | 96% | 51,242 psi | 85% | 2740 fps | 99.2% |
| Hodgdon CFE223 | <<locked>> | 94% | 53,388 psi | 89% | 2825 fps | 97.6% |
| Hodgdon H322 | <<locked>> | 90% | 51,010 psi | 85% | 2690 fps | 100% |
| Hodgdon H335 | <<locked>> | 90% | 52,069 psi | 87% | 2713 fps | 99.9% |
| Hodgdon H4198 | <<locked>> | 84% | 52,185 psi | 87% | 2605 fps | 100% |
| Hodgdon H4895 | <<locked>> | 98% | 54,041 psi | 90% | 2766 fps | 98.6% |
| Hodgdon LEVERevolutionᴾ | <<locked>> | 100% | 52,127 psi | 87% | 2785 fps | 98.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,098 psi | 55% | 1604 fps | 100% |
| Hodgdon VARGET | <<locked>> | 98% | 52,736 psi | 88% | 2723 fps | 98.3% |
| IMR 3031 | <<locked>> | 98% | 51,924 psi | 86% | 2759 fps | 100% |
| IMR 4064ᴾ | <<locked>> | 100% | 50,865 psi | 85% | 2677 fps | 97.1% |
| IMR 4198 | <<locked>> | 90% | 52,837 psi | 88% | 2625 fps | 100% |
| IMR 4895ᴾ | <<locked>> | 100% | 51,808 psi | 86% | 2759 fps | 97.9% |
| IMR 8208 XBR | <<locked>> | 96% | 53,432 psi | 89% | 2717 fps | 99% |
| Lovex D073.4 | <<locked>> | 86% | 53,751 psi | 89% | 2720 fps | 99.8% |
| Lovex D073.5 | <<locked>> | 92% | 53,243 psi | 88% | 2710 fps | 99.5% |
| Lovex D073.6 | <<locked>> | 98% | 51,343 psi | 85% | 2730 fps | 99.7% |
| Lovex S053 | <<locked>> | 82% | 53,983 psi | 90% | 2533 fps | 100% |
| Lovex S060 | <<locked>> | 96% | 51,721 psi | 86% | 2644 fps | 97.7% |
| Lovex S062ᴾ | <<locked>> | 100% | 49,501 psi | 82% | 2674 fps | 98.6% |
| Norma 200 | <<locked>> | 86% | 51,619 psi | 86% | 2635 fps | 100% |
| Norma 201 | <<locked>> | 98% | 51,924 psi | 86% | 2697 fps | 98.9% |
| Norma 202 | <<locked>> | 98% | 52,446 psi | 87% | 2720 fps | 99.9% |
| Norma 203Bᴾ | <<locked>> | 100% | 49,588 psi | 82% | 2713 fps | 97.5% |
| Ramshot Big Gameᴾ | <<locked>> | 100% | 50,227 psi | 83% | 2733 fps | 97.2% |
| Ramshot Wild Boar | <<locked>> | 96% | 52,678 psi | 88% | 2740 fps | 97.9% |
| Ramshot X-Terminator | <<locked>> | 92% | 52,083 psi | 87% | 2674 fps | 97.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,141 psi | 55% | 1644 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 92% | 53,548 psi | 89% | 2717 fps | 99.7% |
| ReloadSwiss RS 52ᴾ | <<locked>> | 100% | 53,577 psi | 89% | 2838 fps | 97.6% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 44,266 psi | 74% | 2700 fps | 98.7% |
| Rottweil R 901 | <<locked>> | 96% | 52,852 psi | 88% | 2694 fps | 99.9% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 52,330 psi | 87% | 2694 fps | 98.9% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 42,308 psi | 70% | 2592 fps | 96.6% |
| Shooters World AR Plus | <<locked>> | 86% | 53,751 psi | 89% | 2720 fps | 99.8% |
| Shooters World Match Rifle | <<locked>> | 98% | 51,343 psi | 85% | 2730 fps | 99.7% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 49,501 psi | 82% | 2674 fps | 98.6% |
| Shooters World Tactical Rifle | <<locked>> | 90% | 54,114 psi | 90% | 2684 fps | 98.7% |
| SNPE Vectan BA6 1/2 | <<locked>> | 84% | 51,576 psi | 86% | 2352 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 88% | 52,823 psi | 88% | 2720 fps | 99.9% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 45,368 psi | 75% | 2661 fps | 96.2% |
| SNPE Vectan SP 3 | <<locked>> | 90% | 52,823 psi | 88% | 2674 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 98% | 51,982 psi | 86% | 2720 fps | 97.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 96% | 52,330 psi | 87% | 2625 fps | 99.9% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 47,993 psi | 80% | 2572 fps | 100% |
| Somchem S321 | <<locked>> | 92% | 50,995 psi | 85% | 2703 fps | 98.9% |
| Somchem S335 | <<locked>> | 98% | 53,635 psi | 89% | 2661 fps | 100% |
| Somchem S341 | <<locked>> | 96% | 51,242 psi | 85% | 2694 fps | 97.5% |
| Somchem S355ᴾ | <<locked>> | 100% | 43,758 psi | 73% | 2605 fps | 96.7% |
| Vihtavuori N120 | <<locked>> | 86% | 53,998 psi | 90% | 2582 fps | 100% |
| Vihtavuori N130 | <<locked>> | 92% | 52,257 psi | 87% | 2612 fps | 100% |
| Vihtavuori N133 | <<locked>> | 96% | 51,822 psi | 86% | 2618 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 50,618 psi | 84% | 2680 fps | 100% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 52,852 psi | 88% | 2694 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 42,250 psi | 70% | 2549 fps | 97.7% |
| Vihtavuori N530 | <<locked>> | 96% | 54,331 psi | 90% | 2723 fps | 99.1% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 51,155 psi | 85% | 2694 fps | 99.8% |
| Winchester 748 | <<locked>> | 96% | 52,228 psi | 87% | 2759 fps | 99.5% |
| Winchester StaBALL Match | <<locked>> | 98% | 51,372 psi | 85% | 2730 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% | 49,139 psi | 82% | 2536 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 32,895 psi | 55% | 2326 fps | 99.2% |
| Accurate 2200 | <<locked>> | 82% | 46,311 psi | 77% | 2612 fps | 95.7% |
| Accurate 2230 | <<locked>> | 80% | 42,772 psi | 71% | 2559 fps | 95.2% |
| Accurate 2460 | <<locked>> | 80% | 35,128 psi | 58% | 2398 fps | 97.5% |
| Accurate 2495 | <<locked>> | 80% | 24,801 psi | 41% | 2195 fps | 97.3% |
| Accurate 2520 | <<locked>> | 80% | 30,792 psi | 51% | 2336 fps | 95.6% |
| Accurate 4064 | <<locked>> | 84% | 27,035 psi | 45% | 2267 fps | 95.4% |
| Accurate LT-30 | <<locked>> | 80% | 41,872 psi | 70% | 2425 fps | 99.6% |
| Accurate LT-32 | <<locked>> | 80% | 42,235 psi | 70% | 2438 fps | 98.6% |
| ADI AR 2206H | <<locked>> | 90% | 41,597 psi | 69% | 2549 fps | 95.5% |
| ADI AR 2207 | <<locked>> | 80% | 44,889 psi | 75% | 2503 fps | 100% |
| ADI AR 2208 | <<locked>> | 98% | 45,339 psi | 75% | 2592 fps | 95.6% |
| ADI AR 2219 | <<locked>> | 80% | 39,885 psi | 66% | 2510 fps | 99.4% |
| ADI Benchmark 8208 | <<locked>> | 84% | 36,506 psi | 61% | 2421 fps | 95.4% |
| Alliant AR-Comp | <<locked>> | 80% | 29,994 psi | 50% | 2343 fps | 100% |
| Alliant Power Pro 1200-R | 36.8 gr | 82% | 38,885 psi | 65% | 2546 fps | 95.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 96% | 46,673 psi | 78% | 2720 fps | 95.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 37,985 psi | 63% | 2507 fps | 95.7% |
| Alliant Reloder-10x | <<locked>> | 80% | 37,797 psi | 63% | 2434 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 96% | 44,469 psi | 74% | 2625 fps | 95.7% |
| Alliant Reloder-7 | <<locked>> | 80% | 45,730 psi | 76% | 2513 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 40,103 psi | 67% | 2415 fps | 99.6% |
| Baschieri & Pellagri 107 | <<locked>> | 94% | 46,717 psi | 78% | 2651 fps | 95.5% |
| Bofors RP3 | <<locked>> | 94% | 37,260 psi | 62% | 2507 fps | 95.6% |
| Hodgdon Benchmark | <<locked>> | 80% | 34,577 psi | 57% | 2336 fps | 95.5% |
| Hodgdon BL-C2 | <<locked>> | 84% | 33,823 psi | 56% | 2421 fps | 95.3% |
| Hodgdon CFE223 | 43.1 gr | 88% | 43,497 psi | 72% | 2654 fps | 95.3% |
| Hodgdon H322 | <<locked>> | 80% | 36,448 psi | 61% | 2441 fps | 98.8% |
| Hodgdon H335 | <<locked>> | 80% | 36,869 psi | 61% | 2454 fps | 98.1% |
| Hodgdon H4198 | <<locked>> | 80% | 46,195 psi | 77% | 2513 fps | 99.8% |
| Hodgdon H4895 | <<locked>> | 88% | 39,218 psi | 65% | 2510 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 37,405 psi | 62% | 2516 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,439 psi | 41% | 1434 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 38,276 psi | 64% | 2470 fps | 95% |
| IMR 3031 | <<locked>> | 80% | 28,747 psi | 48% | 2316 fps | 97.5% |
| IMR 4064 | <<locked>> | 94% | 42,177 psi | 70% | 2530 fps | 95% |
| IMR 4198 | <<locked>> | 80% | 39,291 psi | 65% | 2418 fps | 100% |
| IMR 4895 | <<locked>> | 92% | 39,929 psi | 66% | 2552 fps | 95.2% |
| IMR 8208 XBR | <<locked>> | 84% | 36,506 psi | 61% | 2421 fps | 95.4% |
| Lovex D073.4 | <<locked>> | 80% | 43,366 psi | 72% | 2559 fps | 98.7% |
| Lovex D073.5 | <<locked>> | 80% | 34,838 psi | 58% | 2392 fps | 96.1% |
| Lovex D073.6 | <<locked>> | 82% | 29,385 psi | 49% | 2313 fps | 95% |
| Lovex S053 | <<locked>> | 80% | 50,966 psi | 85% | 2493 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 40,553 psi | 67% | 2451 fps | 95.1% |
| Lovex S062 | <<locked>> | 90% | 36,056 psi | 60% | 2431 fps | 95.5% |
| Norma 200 | <<locked>> | 80% | 42,424 psi | 70% | 2497 fps | 100% |
| Norma 201 | <<locked>> | 86% | 35,737 psi | 59% | 2408 fps | 95.3% |
| Norma 202 | <<locked>> | 80% | 29,196 psi | 49% | 2277 fps | 95.7% |
| Norma 203B | <<locked>> | 94% | 40,857 psi | 68% | 2559 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 96% | 43,976 psi | 73% | 2628 fps | 95.8% |
| Ramshot Wild Boar | <<locked>> | 88% | 40,234 psi | 67% | 2530 fps | 95% |
| Ramshot X-Terminator | <<locked>> | 86% | 42,757 psi | 71% | 2520 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,337 psi | 40% | 1467 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 36,085 psi | 60% | 2411 fps | 96.9% |
| ReloadSwiss RS 52 | <<locked>> | 94% | 43,613 psi | 72% | 2671 fps | 95.4% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 33,895 psi | 56% | 2467 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 32,547 psi | 54% | 2323 fps | 96.6% |
| Rottweil R 902 | <<locked>> | 88% | 35,998 psi | 60% | 2405 fps | 95.4% |
| Rottweil R 903 | <<locked>> | 96% | 36,912 psi | 61% | 2490 fps | 95% |
| Shooters World AR Plus | <<locked>> | 80% | 43,366 psi | 72% | 2559 fps | 98.7% |
| Shooters World Match Rifle | <<locked>> | 82% | 29,385 psi | 49% | 2313 fps | 95% |
| Shooters World Precision | <<locked>> | 90% | 36,056 psi | 60% | 2431 fps | 95.5% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 38,479 psi | 64% | 2425 fps | 95.6% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 46,630 psi | 77% | 2290 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 40,422 psi | 67% | 2516 fps | 98.7% |
| SNPE Vectan SP 11 | <<locked>> | 98% | 42,264 psi | 70% | 2602 fps | 95.4% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 38,609 psi | 64% | 2448 fps | 99.6% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 40,103 psi | 67% | 2516 fps | 95% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 31,589 psi | 52% | 2257 fps | 96.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 25,483 psi | 42% | 2119 fps | 95.1% |
| Somchem S321 | <<locked>> | 82% | 36,201 psi | 60% | 2438 fps | 95.8% |
| Somchem S335 | <<locked>> | 80% | 30,676 psi | 51% | 2254 fps | 97.1% |
| Somchem S341 | <<locked>> | 90% | 41,626 psi | 69% | 2533 fps | 95.3% |
| Somchem S355 | <<locked>> | 96% | 38,653 psi | 64% | 2507 fps | 95.3% |
| Vihtavuori N120 | <<locked>> | 80% | 45,020 psi | 75% | 2461 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 36,100 psi | 60% | 2352 fps | 99.9% |
| Vihtavuori N133 | <<locked>> | 80% | 31,459 psi | 52% | 2270 fps | 98.8% |
| Vihtavuori N135 | <<locked>> | 80% | 26,339 psi | 44% | 2221 fps | 97.7% |
| Vihtavuori N140 | <<locked>> | 80% | 27,615 psi | 46% | 2218 fps | 95.4% |
| Vihtavuori N150 | <<locked>> | 94% | 34,563 psi | 57% | 2398 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 84% | 36,260 psi | 60% | 2415 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 82% | 28,239 psi | 47% | 2251 fps | 95% |
| Winchester 748 | 38.5 gr | 82% | 32,474 psi | 54% | 2388 fps | 95% |
| Winchester StaBALL Match | <<locked>> | 90% | 39,117 psi | 65% | 2520 fps | 95.5% |
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 85 powders for .308 Win. Ackley Improved loaded with the .308 | 158gr | MRR Green Sport. ReloadSwiss RS 52 delivers the highest muzzle velocity at 2,838 fps; across all powders the maximum-charge window runs from 1,604 fps to 2,838 fps. Accurate 2495 gives the best case fill at 100 %, and 85 of the 85 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (415 MPa), the top charges use 55–90 %, leaving at least 10 % headroom. The 158.0 gr projectile in 0.308" calls for a 1:12.0 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 | 158gr | MRR Green Sport 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.