Load Specifications
Load data in caliber .308 Win. Ackley Improved with .308 | 150gr | Norma ECO Strike bullet and 83 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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Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 84% | 54,244 psi | 90% | 2674 fps | 100% |
| Accurate 2015 | <<locked>> | 96% | 52,431 psi | 87% | 2730 fps | 100% |
| Accurate 2200 | <<locked>> | 86% | 51,155 psi | 85% | 2762 fps | 96.2% |
| Accurate 2230 | <<locked>> | 86% | 51,111 psi | 85% | 2766 fps | 96.6% |
| Accurate 2460 | <<locked>> | 92% | 51,242 psi | 85% | 2746 fps | 99.6% |
| Accurate 2495ᴾ | <<locked>> | 100% | 47,079 psi | 78% | 2717 fps | 100% |
| Accurate 2520 | <<locked>> | 96% | 52,040 psi | 86% | 2795 fps | 99.5% |
| Accurate 4064ᴾ | <<locked>> | 100% | 43,714 psi | 73% | 2694 fps | 99.4% |
| Accurate LT-30 | <<locked>> | 88% | 51,924 psi | 86% | 2651 fps | 100% |
| Accurate LT-32 | <<locked>> | 88% | 52,330 psi | 87% | 2667 fps | 99.5% |
| ADI AR 2206H | <<locked>> | 98% | 51,721 psi | 86% | 2789 fps | 97.3% |
| ADI AR 2207 | <<locked>> | 86% | 52,011 psi | 86% | 2680 fps | 100% |
| ADI AR 2219 | <<locked>> | 90% | 54,114 psi | 90% | 2808 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 96% | 51,561 psi | 86% | 2759 fps | 98.3% |
| Alliant AR-Comp | <<locked>> | 98% | 52,736 psi | 88% | 2808 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 92% | 52,272 psi | 87% | 2858 fps | 98.1% |
| Alliant Power Pro Varmint | <<locked>> | 98% | 52,214 psi | 87% | 2805 fps | 97.9% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 44,367 psi | 74% | 2694 fps | 96.8% |
| Alliant Reloder-10x | <<locked>> | 92% | 52,881 psi | 88% | 2749 fps | 100% |
| Alliant Reloder-15ᴾ | <<locked>> | 100% | 48,631 psi | 81% | 2759 fps | 96.1% |
| Alliant Reloder-7 | <<locked>> | 86% | 53,519 psi | 89% | 2697 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 90% | 53,911 psi | 90% | 2694 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 98% | 51,619 psi | 86% | 2795 fps | 95.9% |
| Bofors RP3ᴾ | <<locked>> | 100% | 43,700 psi | 73% | 2694 fps | 96.7% |
| Hodgdon Benchmark | <<locked>> | 96% | 54,433 psi | 90% | 2756 fps | 99.1% |
| Hodgdon BL-C2 | <<locked>> | 98% | 52,779 psi | 88% | 2835 fps | 99% |
| Hodgdon CFE223 | <<locked>> | 94% | 51,314 psi | 85% | 2858 fps | 96.6% |
| Hodgdon H322 | <<locked>> | 92% | 52,170 psi | 87% | 2779 fps | 100% |
| Hodgdon H335 | <<locked>> | 92% | 53,417 psi | 89% | 2805 fps | 99.9% |
| Hodgdon H4198 | <<locked>> | 86% | 53,824 psi | 89% | 2697 fps | 100% |
| Hodgdon H4895 | <<locked>> | 98% | 52,011 psi | 86% | 2802 fps | 97.9% |
| Hodgdon LEVERevolutionᴾ | <<locked>> | 100% | 50,053 psi | 83% | 2818 fps | 97.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,808 psi | 55% | 1647 fps | 100% |
| Hodgdon VARGETᴾ | <<locked>> | 100% | 54,201 psi | 90% | 2812 fps | 98.1% |
| IMR 3031ᴾ | <<locked>> | 100% | 53,287 psi | 89% | 2854 fps | 100% |
| IMR 4064ᴾ | <<locked>> | 100% | 49,008 psi | 81% | 2713 fps | 96.1% |
| IMR 4198 | <<locked>> | 92% | 54,346 psi | 90% | 2720 fps | 100% |
| IMR 4227 | <<locked>> | 82% | 53,737 psi | 89% | 2641 fps | 100% |
| IMR 4895ᴾ | <<locked>> | 100% | 49,748 psi | 83% | 2795 fps | 97% |
| IMR 8208 XBR | <<locked>> | 96% | 51,561 psi | 86% | 2759 fps | 98.3% |
| Lovex D073.4 | <<locked>> | 86% | 51,779 psi | 86% | 2762 fps | 99.4% |
| Lovex D073.5 | <<locked>> | 92% | 51,111 psi | 85% | 2749 fps | 99% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 52,910 psi | 88% | 2822 fps | 99.6% |
| Lovex S053 | <<locked>> | 82% | 52,330 psi | 87% | 2585 fps | 100% |
| Lovex S060 | <<locked>> | 98% | 53,287 psi | 89% | 2733 fps | 97.5% |
| Lovex S062ᴾ | <<locked>> | 100% | 47,645 psi | 79% | 2713 fps | 97.8% |
| Norma 200 | <<locked>> | 88% | 52,852 psi | 88% | 2726 fps | 100% |
| Norma 201ᴾ | <<locked>> | 100% | 53,417 psi | 89% | 2789 fps | 98.7% |
| Norma 202ᴾ | <<locked>> | 100% | 53,780 psi | 89% | 2808 fps | 99.9% |
| Norma 203Bᴾ | <<locked>> | 100% | 47,645 psi | 79% | 2749 fps | 96.5% |
| Ramshot Big Gameᴾ | <<locked>> | 100% | 48,602 psi | 81% | 2769 fps | 96.2% |
| Ramshot Wild Boar | <<locked>> | 98% | 54,259 psi | 90% | 2831 fps | 97.6% |
| Ramshot X-Terminator | <<locked>> | 94% | 53,882 psi | 90% | 2766 fps | 97.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,808 psi | 55% | 1686 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 82% | 54,099 psi | 90% | 2680 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 92% | 51,706 psi | 86% | 2759 fps | 99.3% |
| ReloadSwiss RS 52ᴾ | <<locked>> | 100% | 51,314 psi | 85% | 2871 fps | 96.6% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 42,525 psi | 71% | 2723 fps | 97.7% |
| Rottweil R 901 | <<locked>> | 98% | 54,331 psi | 90% | 2785 fps | 99.8% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 50,401 psi | 84% | 2733 fps | 98.2% |
| Shooters World AR Plus | <<locked>> | 86% | 51,779 psi | 86% | 2762 fps | 99.4% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 52,910 psi | 88% | 2822 fps | 99.6% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 47,645 psi | 79% | 2713 fps | 97.8% |
| Shooters World Tactical Rifle | <<locked>> | 90% | 52,243 psi | 87% | 2723 fps | 98.1% |
| SNPE Vectan BA6 1/2 | <<locked>> | 86% | 53,142 psi | 88% | 2441 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 88% | 50,966 psi | 85% | 2762 fps | 99.7% |
| SNPE Vectan SP 3 | <<locked>> | 92% | 54,172 psi | 90% | 2766 fps | 100% |
| SNPE Vectan SP 9ᴾ | <<locked>> | 100% | 53,635 psi | 89% | 2812 fps | 97.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 98% | 53,679 psi | 89% | 2713 fps | 99.8% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 45,890 psi | 76% | 2608 fps | 99.7% |
| Somchem S321 | <<locked>> | 94% | 52,620 psi | 87% | 2795 fps | 98.7% |
| Somchem S335 | <<locked>> | 98% | 51,779 psi | 86% | 2707 fps | 100% |
| Somchem S341 | <<locked>> | 98% | 52,837 psi | 88% | 2782 fps | 97.2% |
| Vihtavuori N120 | <<locked>> | 86% | 52,083 psi | 87% | 2631 fps | 100% |
| Vihtavuori N130 | <<locked>> | 94% | 53,534 psi | 89% | 2700 fps | 100% |
| Vihtavuori N133 | <<locked>> | 98% | 53,040 psi | 88% | 2707 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 48,124 psi | 80% | 2720 fps | 100% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 50,792 psi | 84% | 2736 fps | 99.8% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 40,495 psi | 67% | 2579 fps | 96.7% |
| Vihtavuori N530 | <<locked>> | 96% | 52,344 psi | 87% | 2762 fps | 98.5% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 49,182 psi | 82% | 2733 fps | 99.5% |
| Winchester 748 | <<locked>> | 98% | 53,853 psi | 89% | 2854 fps | 99.3% |
| Winchester StaBALL Matchᴾ | <<locked>> | 100% | 52,968 psi | 88% | 2822 fps | 98% |
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% | 47,471 psi | 79% | 2579 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 31,488 psi | 52% | 2359 fps | 98.5% |
| Accurate 2200 | <<locked>> | 84% | 47,877 psi | 80% | 2707 fps | 95.4% |
| Accurate 2230 | <<locked>> | 84% | 47,456 psi | 79% | 2707 fps | 95.8% |
| Accurate 2460 | <<locked>> | 80% | 33,808 psi | 56% | 2431 fps | 96.5% |
| Accurate 2495 | <<locked>> | 80% | 23,670 psi | 39% | 2221 fps | 96.1% |
| Accurate 2520 | <<locked>> | 82% | 31,575 psi | 52% | 2418 fps | 95.2% |
| Accurate 4064 | <<locked>> | 88% | 29,356 psi | 49% | 2388 fps | 95.8% |
| Accurate LT-30 | <<locked>> | 80% | 40,480 psi | 67% | 2464 fps | 99.2% |
| Accurate LT-32 | <<locked>> | 80% | 40,843 psi | 68% | 2474 fps | 97.9% |
| ADI AR 2206H | <<locked>> | 92% | 42,743 psi | 71% | 2635 fps | 95.2% |
| ADI AR 2207 | <<locked>> | 80% | 43,250 psi | 72% | 2552 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 38,232 psi | 64% | 2543 fps | 98.8% |
| ADI Benchmark 8208 | <<locked>> | 86% | 37,623 psi | 63% | 2507 fps | 95.1% |
| Alliant AR-Comp | <<locked>> | 80% | 28,935 psi | 48% | 2375 fps | 99.7% |
| Alliant Power Pro 1200-R | 38 gr | 84% | 40,074 psi | 67% | 2635 fps | 95.3% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 40,451 psi | 67% | 2598 fps | 95.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 38,943 psi | 65% | 2589 fps | 95.3% |
| Alliant Reloder-10x | <<locked>> | 80% | 36,318 psi | 60% | 2474 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 98% | 45,571 psi | 76% | 2707 fps | 95.3% |
| Alliant Reloder-7 | <<locked>> | 80% | 44,440 psi | 74% | 2562 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 38,899 psi | 65% | 2457 fps | 99.2% |
| Baschieri & Pellagri 107 | <<locked>> | 96% | 48,167 psi | 80% | 2740 fps | 95.1% |
| Bofors RP3 | <<locked>> | 96% | 38,101 psi | 63% | 2585 fps | 95.1% |
| Hodgdon Benchmark | <<locked>> | 82% | 35,476 psi | 59% | 2415 fps | 95.1% |
| Hodgdon BL-C2 | <<locked>> | 86% | 34,650 psi | 58% | 2503 fps | 95% |
| Hodgdon CFE223 | 44.4 gr | 90% | 44,875 psi | 75% | 2746 fps | 95% |
| Hodgdon H322 | <<locked>> | 80% | 34,983 psi | 58% | 2474 fps | 98.1% |
| Hodgdon H335 | <<locked>> | 80% | 35,288 psi | 59% | 2484 fps | 97.2% |
| Hodgdon H4198 | <<locked>> | 80% | 44,701 psi | 74% | 2556 fps | 99.4% |
| Hodgdon H4895 | <<locked>> | 90% | 40,292 psi | 67% | 2595 fps | 95.2% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 41,104 psi | 68% | 2654 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,265 psi | 40% | 1473 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 41,989 psi | 70% | 2605 fps | 95.5% |
| IMR 3031 | <<locked>> | 80% | 27,528 psi | 46% | 2343 fps | 96.4% |
| IMR 4064 | <<locked>> | 98% | 45,948 psi | 76% | 2661 fps | 95.4% |
| IMR 4198 | <<locked>> | 80% | 37,927 psi | 63% | 2461 fps | 100% |
| IMR 4227 | <<locked>> | 80% | 50,662 psi | 84% | 2598 fps | 100% |
| IMR 4895 | <<locked>> | 96% | 43,714 psi | 73% | 2690 fps | 95.6% |
| IMR 8208 XBR | <<locked>> | 86% | 37,623 psi | 63% | 2507 fps | 95.1% |
| Lovex D073.4 | <<locked>> | 80% | 41,771 psi | 69% | 2598 fps | 98% |
| Lovex D073.5 | <<locked>> | 82% | 36,013 psi | 60% | 2480 fps | 95.8% |
| Lovex D073.6 | <<locked>> | 86% | 32,474 psi | 54% | 2451 fps | 95.6% |
| Lovex S053 | <<locked>> | 80% | 49,414 psi | 82% | 2546 fps | 100% |
| Lovex S060 | <<locked>> | 92% | 44,512 psi | 74% | 2589 fps | 95.6% |
| Lovex S062 | <<locked>> | 92% | 37,028 psi | 62% | 2513 fps | 95.1% |
| Norma 200 | <<locked>> | 80% | 41,046 psi | 68% | 2543 fps | 100% |
| Norma 201 | <<locked>> | 90% | 38,943 psi | 65% | 2536 fps | 95.7% |
| Norma 202 | <<locked>> | 82% | 30,081 psi | 50% | 2362 fps | 95.4% |
| Norma 203B | <<locked>> | 96% | 41,843 psi | 70% | 2644 fps | 95% |
| Ramshot Big Game | <<locked>> | 98% | 45,339 psi | 75% | 2713 fps | 95.4% |
| Ramshot Wild Boar | <<locked>> | 92% | 44,266 psi | 74% | 2671 fps | 95.5% |
| Ramshot X-Terminator | <<locked>> | 88% | 44,222 psi | 73% | 2608 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,120 psi | 40% | 1506 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 50,778 psi | 84% | 2638 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 34,911 psi | 58% | 2448 fps | 95.9% |
| ReloadSwiss RS 52 | <<locked>> | 98% | 47,659 psi | 79% | 2808 fps | 95.8% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 37,260 psi | 62% | 2605 fps | 95.8% |
| Rottweil R 901 | <<locked>> | 80% | 31,473 psi | 52% | 2356 fps | 95.6% |
| Rottweil R 902 | <<locked>> | 90% | 36,782 psi | 61% | 2484 fps | 95% |
| Shooters World AR Plus | <<locked>> | 80% | 41,771 psi | 69% | 2598 fps | 98% |
| Shooters World Match Rifle | <<locked>> | 86% | 32,474 psi | 54% | 2451 fps | 95.6% |
| Shooters World Precision | <<locked>> | 92% | 37,028 psi | 62% | 2513 fps | 95.1% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 39,711 psi | 66% | 2510 fps | 95.3% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 45,440 psi | 75% | 2343 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 38,754 psi | 64% | 2549 fps | 98% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 37,072 psi | 62% | 2484 fps | 99.1% |
| SNPE Vectan SP 9 | <<locked>> | 94% | 44,077 psi | 73% | 2654 fps | 95.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 30,414 psi | 51% | 2287 fps | 95.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 27,789 psi | 46% | 2241 fps | 95.6% |
| Somchem S321 | <<locked>> | 84% | 37,449 psi | 62% | 2530 fps | 95.5% |
| Somchem S335 | <<locked>> | 80% | 29,689 psi | 49% | 2290 fps | 96.2% |
| Somchem S341 | <<locked>> | 92% | 42,975 psi | 71% | 2621 fps | 95% |
| Vihtavuori N120 | <<locked>> | 80% | 43,381 psi | 72% | 2510 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 34,780 psi | 58% | 2388 fps | 99.6% |
| Vihtavuori N133 | <<locked>> | 80% | 30,240 psi | 50% | 2300 fps | 98.1% |
| Vihtavuori N135 | <<locked>> | 80% | 25,179 psi | 42% | 2244 fps | 96.5% |
| Vihtavuori N140 | <<locked>> | 82% | 28,485 psi | 47% | 2300 fps | 95.1% |
| Vihtavuori N150 | <<locked>> | 96% | 35,476 psi | 59% | 2477 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 86% | 37,362 psi | 62% | 2497 fps | 95.2% |
| Vihtavuori N540 | <<locked>> | 86% | 30,951 psi | 51% | 2379 fps | 95.5% |
| Winchester 748 | 40.7 gr | 86% | 35,839 psi | 60% | 2530 fps | 95.6% |
| Winchester StaBALL Match | <<locked>> | 92% | 40,118 psi | 67% | 2598 fps | 95.1% |
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 83 powders for .308 Win. Ackley Improved loaded with the .308 | 150gr | Norma ECO Strike. ReloadSwiss RS 52 delivers the highest muzzle velocity at 2,871 fps; across all powders the maximum-charge window runs from 1,647 fps to 2,871 fps. Accurate 2495 gives the best case fill at 100 %, and 83 of the 83 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 150.0 gr projectile in 0.308" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. Accurate 2495, Accurate 4064, Alliant Reloder- TS 15.5 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 | 150gr | Norma ECO Strike 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.