Load Specifications
Load data in caliber .308 Win. Ackley Improved with .308 | 125gr | Sierra Pro-Hunter bullet and 65 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, SNPE Vectan SP 10 and ADI AR 2219.
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% | 52,547 psi | 87% | 2927 fps | 100% |
| Accurate 2015 | <<locked>> | 98% | 53,708 psi | 89% | 3028 fps | 100% |
| Accurate 2460 | <<locked>> | 94% | 52,576 psi | 87% | 3038 fps | 99% |
| Accurate 2495ᴾ | <<locked>> | 100% | 45,295 psi | 75% | 2956 fps | 99.9% |
| Accurate 2520 | <<locked>> | 98% | 53,258 psi | 88% | 3087 fps | 98.9% |
| Accurate 4064ᴾ | <<locked>> | 100% | 42,018 psi | 70% | 2920 fps | 98% |
| Accurate LT-30 | <<locked>> | 90% | 53,229 psi | 88% | 2943 fps | 99.8% |
| Accurate LT-32 | <<locked>> | 90% | 53,635 psi | 89% | 2956 fps | 98.8% |
| ADI AR 2206Hᴾ | <<locked>> | 100% | 53,055 psi | 88% | 3077 fps | 96% |
| ADI AR 2207 | <<locked>> | 88% | 53,577 psi | 89% | 2992 fps | 100% |
| ADI AR 2219 | <<locked>> | 90% | 51,808 psi | 86% | 3054 fps | 99.6% |
| ADI Benchmark 8208 | <<locked>> | 98% | 52,866 psi | 88% | 3045 fps | 97.3% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 53,577 psi | 89% | 3110 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 94% | 53,200 psi | 88% | 3150 fps | 96.8% |
| Alliant Reloder-10x | <<locked>> | 94% | 54,128 psi | 90% | 3054 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 86% | 51,692 psi | 86% | 2953 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 90% | 51,895 psi | 86% | 2933 fps | 99.8% |
| Hodgdon Benchmark | <<locked>> | 96% | 52,649 psi | 87% | 2995 fps | 97.8% |
| Hodgdon BL-C2ᴾ | <<locked>> | 100% | 54,201 psi | 90% | 3127 fps | 98.1% |
| Hodgdon H322 | <<locked>> | 94% | 53,606 psi | 89% | 3081 fps | 99.8% |
| Hodgdon H335 | <<locked>> | 92% | 51,213 psi | 85% | 3045 fps | 99% |
| Hodgdon H4198 | <<locked>> | 86% | 51,924 psi | 86% | 2943 fps | 99.4% |
| Hodgdon H4895ᴾ | <<locked>> | 100% | 53,301 psi | 89% | 3091 fps | 96.7% |
| Hodgdon LEVERevolutionᴾ | <<locked>> | 100% | 47,935 psi | 80% | 3038 fps | 95.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,648 psi | 54% | 1841 fps | 100% |
| Hodgdon VARGETᴾ | <<locked>> | 100% | 51,837 psi | 86% | 3041 fps | 96.2% |
| IMR 3031ᴾ | <<locked>> | 100% | 50,604 psi | 84% | 3097 fps | 99.9% |
| IMR 4198 | <<locked>> | 92% | 52,272 psi | 87% | 2979 fps | 100% |
| IMR 4227 | <<locked>> | 82% | 51,895 psi | 86% | 2900 fps | 100% |
| IMR 8208 XBR | <<locked>> | 98% | 52,866 psi | 88% | 3045 fps | 97.3% |
| Lovex D073.4 | <<locked>> | 88% | 53,330 psi | 89% | 3061 fps | 98.7% |
| Lovex D073.5 | <<locked>> | 94% | 52,837 psi | 88% | 3041 fps | 98.1% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 50,285 psi | 84% | 3051 fps | 98.5% |
| Lovex S053 | <<locked>> | 84% | 53,606 psi | 89% | 2887 fps | 100% |
| Lovex S060ᴾ | <<locked>> | 100% | 54,447 psi | 90% | 3012 fps | 96.2% |
| Lovex S062ᴾ | <<locked>> | 100% | 45,585 psi | 76% | 2933 fps | 95.8% |
| Norma 200 | <<locked>> | 90% | 54,418 psi | 90% | 3031 fps | 100% |
| Norma 201ᴾ | <<locked>> | 100% | 51,561 psi | 86% | 3025 fps | 97.1% |
| Norma 202ᴾ | <<locked>> | 100% | 51,576 psi | 86% | 3048 fps | 99.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,547 psi | 54% | 1883 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 82% | 51,924 psi | 86% | 2936 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 94% | 52,953 psi | 88% | 3048 fps | 98.5% |
| Rottweil R 901 | <<locked>> | 98% | 52,634 psi | 87% | 3035 fps | 99% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 48,501 psi | 81% | 2959 fps | 96.5% |
| Shooters World AR Plus | <<locked>> | 88% | 53,330 psi | 89% | 3061 fps | 98.7% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 50,285 psi | 84% | 3051 fps | 98.5% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 45,585 psi | 76% | 2933 fps | 95.8% |
| Shooters World Tactical Rifle | <<locked>> | 92% | 54,099 psi | 90% | 3015 fps | 97% |
| SNPE Vectan BA6 1/2 | <<locked>> | 88% | 54,244 psi | 90% | 2730 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 90% | 52,446 psi | 87% | 3058 fps | 99.1% |
| SNPE Vectan SP 3 | <<locked>> | 92% | 52,025 psi | 86% | 3018 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 98% | 51,793 psi | 86% | 2953 fps | 99% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 44,251 psi | 74% | 2835 fps | 98.7% |
| Somchem S321 | <<locked>> | 96% | 54,244 psi | 90% | 3091 fps | 97.8% |
| Somchem S335ᴾ | <<locked>> | 100% | 53,214 psi | 88% | 2995 fps | 99.6% |
| Somchem S341ᴾ | <<locked>> | 100% | 54,143 psi | 90% | 3061 fps | 95.9% |
| Vihtavuori N120 | <<locked>> | 88% | 53,490 psi | 89% | 2936 fps | 100% |
| Vihtavuori N130 | <<locked>> | 94% | 51,474 psi | 86% | 2949 fps | 100% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 54,099 psi | 90% | 2999 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 46,064 psi | 77% | 2959 fps | 99.9% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 48,617 psi | 81% | 2969 fps | 99% |
| Vihtavuori N530 | <<locked>> | 98% | 53,563 psi | 89% | 3048 fps | 97.4% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 47,050 psi | 78% | 2956 fps | 98.3% |
| Winchester 748 | <<locked>> | 98% | 51,314 psi | 85% | 3084 fps | 97.9% |
| Winchester StaBALL Matchᴾ | <<locked>> | 100% | 50,517 psi | 84% | 3045 fps | 96.1% |
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% | 45,861 psi | 76% | 2818 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 30,400 psi | 51% | 2562 fps | 96.8% |
| Accurate 2460 | <<locked>> | 82% | 34,867 psi | 58% | 2690 fps | 95.1% |
| Accurate 2495 | <<locked>> | 84% | 26,353 psi | 44% | 2520 fps | 95.6% |
| Accurate 2520 | <<locked>> | 88% | 37,362 psi | 62% | 2789 fps | 95.5% |
| Accurate 4064 | <<locked>> | 92% | 32,242 psi | 54% | 2694 fps | 95.1% |
| Accurate LT-30 | <<locked>> | 80% | 39,276 psi | 65% | 2687 fps | 97.9% |
| Accurate LT-32 | <<locked>> | 80% | 39,653 psi | 66% | 2697 fps | 96.1% |
| ADI AR 2206H | <<locked>> | 98% | 49,719 psi | 83% | 3018 fps | 95.2% |
| ADI AR 2207 | <<locked>> | 80% | 41,742 psi | 69% | 2799 fps | 100% |
| ADI AR 2219 | 40.5 gr | 80% | 36,811 psi | 61% | 2759 fps | 97.1% |
| ADI Benchmark 8208 | <<locked>> | 92% | 43,642 psi | 73% | 2877 fps | 95.1% |
| Alliant AR-Comp | <<locked>> | 80% | 28,007 psi | 47% | 2579 fps | 98.4% |
| Alliant Power Pro 1200-R | 44.1 gr | 90% | 46,528 psi | 77% | 3028 fps | 95.3% |
| Alliant Reloder-10x | <<locked>> | 80% | 35,041 psi | 58% | 2694 fps | 99% |
| Alliant Reloder-7 | <<locked>> | 80% | 43,105 psi | 72% | 2805 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 37,550 psi | 62% | 2667 fps | 97.8% |
| Hodgdon Benchmark | <<locked>> | 88% | 41,278 psi | 69% | 2782 fps | 95.2% |
| Hodgdon BL-C2 | <<locked>> | 92% | 41,031 psi | 68% | 2884 fps | 95.2% |
| Hodgdon H322 | <<locked>> | 80% | 33,750 psi | 56% | 2684 fps | 96.1% |
| Hodgdon H335 | <<locked>> | 80% | 33,997 psi | 56% | 2690 fps | 95% |
| Hodgdon H4198 | <<locked>> | 80% | 43,308 psi | 72% | 2789 fps | 98.2% |
| Hodgdon H4895 | <<locked>> | 96% | 46,818 psi | 78% | 2976 fps | 95.2% |
| Hodgdon LEVERevolution | <<locked>> | 98% | 44,991 psi | 75% | 2979 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,062 psi | 40% | 1644 fps | 100% |
| Hodgdon VARGET | <<locked>> | 98% | 48,631 psi | 81% | 2982 fps | 95.5% |
| IMR 3031 | <<locked>> | 84% | 30,313 psi | 50% | 2651 fps | 95.7% |
| IMR 4198 | <<locked>> | 80% | 36,651 psi | 61% | 2690 fps | 99.7% |
| IMR 4227 | <<locked>> | 80% | 48,849 psi | 81% | 2854 fps | 100% |
| IMR 8208 XBR | <<locked>> | 92% | 43,642 psi | 73% | 2877 fps | 95.1% |
| Lovex D073.4 | <<locked>> | 80% | 40,147 psi | 67% | 2815 fps | 96% |
| Lovex D073.5 | <<locked>> | 86% | 40,059 psi | 67% | 2805 fps | 95.3% |
| Lovex D073.6 | <<locked>> | 92% | 38,203 psi | 63% | 2818 fps | 95.7% |
| Lovex S053 | <<locked>> | 80% | 47,935 psi | 80% | 2802 fps | 100% |
| Lovex S060 | <<locked>> | 98% | 51,459 psi | 85% | 2963 fps | 95.6% |
| Lovex S062 | <<locked>> | 98% | 42,960 psi | 71% | 2881 fps | 95.1% |
| Norma 200 | <<locked>> | 80% | 39,726 psi | 66% | 2779 fps | 99.9% |
| Norma 201 | <<locked>> | 94% | 42,641 psi | 71% | 2858 fps | 95% |
| Norma 202 | <<locked>> | 88% | 35,172 psi | 58% | 2723 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,134 psi | 40% | 1686 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 48,979 psi | 81% | 2890 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 38,290 psi | 64% | 2766 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 86% | 36,840 psi | 61% | 2720 fps | 95.7% |
| Rottweil R 902 | <<locked>> | 96% | 42,873 psi | 71% | 2854 fps | 95% |
| Shooters World AR Plus | <<locked>> | 80% | 40,147 psi | 67% | 2815 fps | 96% |
| Shooters World Match Rifle | <<locked>> | 92% | 38,203 psi | 63% | 2818 fps | 95.7% |
| Shooters World Precision | <<locked>> | 98% | 42,960 psi | 71% | 2881 fps | 95.1% |
| Shooters World Tactical Rifle | <<locked>> | 88% | 47,065 psi | 78% | 2897 fps | 95.5% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 44,034 psi | 73% | 2585 fps | 100% |
| SNPE Vectan SP 10 | 41.9 gr | 80% | 37,304 psi | 62% | 2762 fps | 96% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 35,563 psi | 59% | 2697 fps | 97.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 35,607 psi | 59% | 2641 fps | 95.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 32,358 psi | 54% | 2579 fps | 95.6% |
| Somchem S321 | <<locked>> | 90% | 44,106 psi | 73% | 2910 fps | 95.7% |
| Somchem S335 | <<locked>> | 84% | 32,590 psi | 54% | 2589 fps | 95.5% |
| Somchem S341 | <<locked>> | 98% | 50,430 psi | 84% | 3002 fps | 95.1% |
| Vihtavuori N120 | <<locked>> | 80% | 41,814 psi | 69% | 2753 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 33,634 psi | 56% | 2605 fps | 98.5% |
| Vihtavuori N133 | <<locked>> | 80% | 29,196 psi | 49% | 2500 fps | 96.1% |
| Vihtavuori N135 | <<locked>> | 84% | 27,746 psi | 46% | 2543 fps | 95.9% |
| Vihtavuori N140 | <<locked>> | 88% | 33,243 psi | 55% | 2651 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 92% | 43,830 psi | 73% | 2874 fps | 95.3% |
| Vihtavuori N540 | <<locked>> | 92% | 36,318 psi | 60% | 2740 fps | 95.7% |
| Winchester 748 | <<locked>> | 92% | 41,945 psi | 70% | 2904 fps | 95.7% |
| Winchester StaBALL Match | <<locked>> | 98% | 47,282 psi | 79% | 2986 fps | 95.3% |
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 65 powders for .308 Win. Ackley Improved loaded with the .308 | 125gr | Sierra Pro-Hunter. Alliant Power Pro 1200-R delivers the highest muzzle velocity at 3,150 fps; across all powders the maximum-charge window runs from 1,841 fps to 3,150 fps. Accurate 2495 gives the best case fill at 100 %, and 65 of the 65 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. 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, SNPE Vectan SP 10, ADI AR 2219 rank at the top here: for .308 Win. Ackley Improved with the .308 | 125gr | Sierra Pro-Hunter 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.