Load Specifications
Load data in caliber .308 Win. Ackley Improved with .308 | 125gr | Nosler Ballistic Tip Hunting bullet and 57 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Somchem S321, ADI AR 2219 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% | 51,184 psi | 85% | 2890 fps | 100% |
| Accurate 2015 | <<locked>> | 98% | 51,895 psi | 86% | 2986 fps | 100% |
| Accurate 2460 | <<locked>> | 96% | 54,215 psi | 90% | 3048 fps | 99.1% |
| Accurate 2495ᴾ | <<locked>> | 100% | 43,236 psi | 72% | 2910 fps | 99.7% |
| Accurate 2520 | <<locked>> | 98% | 50,894 psi | 85% | 3035 fps | 98.4% |
| Accurate 4064ᴾ | <<locked>> | 100% | 40,161 psi | 67% | 2867 fps | 97.4% |
| Accurate LT-30 | <<locked>> | 90% | 51,808 psi | 86% | 2907 fps | 99.6% |
| Accurate LT-32 | <<locked>> | 90% | 52,301 psi | 87% | 2917 fps | 98.5% |
| ADI AR 2207 | <<locked>> | 88% | 51,663 psi | 86% | 2953 fps | 100% |
| ADI AR 2219 | <<locked>> | 92% | 53,635 psi | 89% | 3068 fps | 99.7% |
| ADI Benchmark 8208ᴾ | <<locked>> | 100% | 54,462 psi | 90% | 3054 fps | 97.3% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 51,314 psi | 85% | 3068 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 94% | 51,329 psi | 85% | 3104 fps | 96.2% |
| Alliant Reloder-10x | <<locked>> | 94% | 52,489 psi | 87% | 3015 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 88% | 53,505 psi | 89% | 2966 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 92% | 53,766 psi | 89% | 2946 fps | 99.8% |
| Hodgdon Benchmark | <<locked>> | 98% | 54,230 psi | 90% | 3002 fps | 97.8% |
| Hodgdon BL-C2ᴾ | <<locked>> | 100% | 52,098 psi | 87% | 3077 fps | 97.6% |
| Hodgdon H322 | <<locked>> | 94% | 51,822 psi | 86% | 3038 fps | 99.5% |
| Hodgdon H335 | <<locked>> | 94% | 53,142 psi | 88% | 3061 fps | 99.1% |
| Hodgdon H4198 | <<locked>> | 88% | 53,838 psi | 89% | 2959 fps | 99.5% |
| Hodgdon H4895ᴾ | <<locked>> | 100% | 51,459 psi | 85% | 3045 fps | 96% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,460 psi | 54% | 1824 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 48,892 psi | 81% | 3058 fps | 99.7% |
| IMR 4198 | <<locked>> | 94% | 53,737 psi | 89% | 2989 fps | 100% |
| IMR 4227 | <<locked>> | 84% | 53,969 psi | 90% | 2917 fps | 100% |
| IMR 8208 XBRᴾ | <<locked>> | 100% | 54,462 psi | 90% | 3054 fps | 97.3% |
| Lovex D073.4 | <<locked>> | 88% | 51,532 psi | 86% | 3015 fps | 98.2% |
| Lovex D073.5 | <<locked>> | 94% | 50,952 psi | 85% | 2995 fps | 97.6% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 48,356 psi | 80% | 3005 fps | 97.9% |
| Lovex S053 | <<locked>> | 84% | 52,344 psi | 87% | 2858 fps | 100% |
| Norma 200 | <<locked>> | 90% | 52,779 psi | 88% | 2995 fps | 100% |
| Norma 201ᴾ | <<locked>> | 100% | 49,705 psi | 83% | 2976 fps | 96.5% |
| Norma 202ᴾ | <<locked>> | 100% | 49,705 psi | 83% | 3002 fps | 98.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,358 psi | 54% | 1864 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 84% | 54,041 psi | 90% | 2956 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 94% | 51,401 psi | 85% | 3009 fps | 98.1% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 53,998 psi | 90% | 3038 fps | 99% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 47,007 psi | 78% | 2917 fps | 95.8% |
| Shooters World AR Plus | <<locked>> | 88% | 51,532 psi | 86% | 3015 fps | 98.2% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 48,356 psi | 80% | 3005 fps | 97.9% |
| Shooters World Tactical Rifle | <<locked>> | 92% | 52,243 psi | 87% | 2969 fps | 96.4% |
| SNPE Vectan BA6 1/2 | <<locked>> | 88% | 52,968 psi | 88% | 2700 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 92% | 54,259 psi | 90% | 3071 fps | 99.2% |
| SNPE Vectan SP 3 | <<locked>> | 94% | 53,606 psi | 89% | 3028 fps | 99.9% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 53,417 psi | 89% | 2963 fps | 99% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 42,772 psi | 71% | 2795 fps | 98.3% |
| Somchem S321 | <<locked>> | 96% | 52,156 psi | 87% | 3041 fps | 97.2% |
| Somchem S335ᴾ | <<locked>> | 100% | 51,358 psi | 85% | 2953 fps | 99.4% |
| Vihtavuori N120 | <<locked>> | 88% | 51,706 psi | 86% | 2900 fps | 100% |
| Vihtavuori N130 | <<locked>> | 96% | 53,156 psi | 88% | 2959 fps | 100% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 52,446 psi | 87% | 2959 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 44,338 psi | 74% | 2917 fps | 99.7% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 46,818 psi | 78% | 2923 fps | 98.5% |
| Vihtavuori N530 | <<locked>> | 98% | 51,706 psi | 86% | 3002 fps | 96.8% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 45,440 psi | 75% | 2913 fps | 97.8% |
| Winchester 748ᴾ | <<locked>> | 100% | 53,084 psi | 88% | 3097 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% | 44,788 psi | 74% | 2785 fps | 99.9% |
| Accurate 2015 | <<locked>> | 80% | 29,443 psi | 49% | 2523 fps | 96.2% |
| Accurate 2460 | <<locked>> | 84% | 35,926 psi | 60% | 2703 fps | 95.2% |
| Accurate 2495 | <<locked>> | 86% | 26,963 psi | 45% | 2530 fps | 95.6% |
| Accurate 2520 | <<locked>> | 90% | 38,508 psi | 64% | 2802 fps | 95.6% |
| Accurate 4064 | <<locked>> | 94% | 32,996 psi | 55% | 2703 fps | 95.2% |
| Accurate LT-30 | <<locked>> | 80% | 38,159 psi | 63% | 2651 fps | 97.4% |
| Accurate LT-32 | <<locked>> | 80% | 38,479 psi | 64% | 2654 fps | 95.4% |
| ADI AR 2207 | <<locked>> | 80% | 40,524 psi | 67% | 2766 fps | 100% |
| ADI AR 2219 | 39.3 gr | 80% | 35,694 psi | 59% | 2720 fps | 96.5% |
| ADI Benchmark 8208 | <<locked>> | 94% | 45,049 psi | 75% | 2890 fps | 95.2% |
| Alliant AR-Comp | <<locked>> | 80% | 27,035 psi | 45% | 2533 fps | 97.8% |
| Alliant Power Pro 1200-R | <<locked>> | 92% | 48,225 psi | 80% | 3045 fps | 95.5% |
| Alliant Reloder-10x | <<locked>> | 80% | 33,997 psi | 56% | 2657 fps | 98.7% |
| Alliant Reloder-7 | <<locked>> | 80% | 41,742 psi | 69% | 2766 fps | 99.9% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 36,405 psi | 60% | 2631 fps | 97.3% |
| Hodgdon Benchmark | <<locked>> | 90% | 42,757 psi | 71% | 2795 fps | 95.3% |
| Hodgdon BL-C2 | <<locked>> | 94% | 42,148 psi | 70% | 2897 fps | 95.3% |
| Hodgdon H322 | <<locked>> | 80% | 32,677 psi | 54% | 2644 fps | 95.4% |
| Hodgdon H335 | <<locked>> | 82% | 35,331 psi | 59% | 2713 fps | 95.2% |
| Hodgdon H4198 | <<locked>> | 80% | 42,032 psi | 70% | 2746 fps | 97.8% |
| Hodgdon H4895 | <<locked>> | 98% | 48,153 psi | 80% | 2986 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,902 psi | 40% | 1631 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 31,183 psi | 52% | 2661 fps | 95.8% |
| IMR 4198 | <<locked>> | 80% | 35,607 psi | 59% | 2654 fps | 99.5% |
| IMR 4227 | <<locked>> | 80% | 47,616 psi | 79% | 2822 fps | 100% |
| IMR 8208 XBR | <<locked>> | 94% | 45,049 psi | 75% | 2890 fps | 95.2% |
| Lovex D073.4 | <<locked>> | 80% | 38,696 psi | 64% | 2772 fps | 95.3% |
| Lovex D073.5 | <<locked>> | 88% | 41,249 psi | 69% | 2815 fps | 95.4% |
| Lovex D073.6 | <<locked>> | 92% | 36,724 psi | 61% | 2776 fps | 95% |
| Lovex S053 | <<locked>> | 80% | 46,688 psi | 78% | 2772 fps | 100% |
| Norma 200 | <<locked>> | 80% | 38,421 psi | 64% | 2740 fps | 99.7% |
| Norma 201 | <<locked>> | 96% | 43,976 psi | 73% | 2871 fps | 95.1% |
| Norma 202 | <<locked>> | 90% | 36,056 psi | 60% | 2730 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,960 psi | 40% | 1673 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 47,572 psi | 79% | 2854 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 39,624 psi | 66% | 2782 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 86% | 35,708 psi | 59% | 2680 fps | 95.1% |
| Rottweil R 902 | <<locked>> | 98% | 43,918 psi | 73% | 2861 fps | 95% |
| Shooters World AR Plus | <<locked>> | 80% | 38,696 psi | 64% | 2772 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 92% | 36,724 psi | 61% | 2776 fps | 95% |
| Shooters World Tactical Rifle | <<locked>> | 90% | 48,776 psi | 81% | 2910 fps | 95.6% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 43,004 psi | 71% | 2556 fps | 100% |
| SNPE Vectan SP 10 | 40.7 gr | 80% | 36,274 psi | 60% | 2726 fps | 95.4% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 34,505 psi | 57% | 2661 fps | 97.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 36,796 psi | 61% | 2654 fps | 95.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 31,517 psi | 52% | 2543 fps | 95% |
| Somchem S321 | 46.1 gr | 90% | 42,699 psi | 71% | 2867 fps | 95% |
| Somchem S335 | <<locked>> | 86% | 33,533 psi | 56% | 2602 fps | 95.6% |
| Vihtavuori N120 | <<locked>> | 80% | 40,654 psi | 68% | 2723 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 32,677 psi | 54% | 2569 fps | 98.1% |
| Vihtavuori N133 | <<locked>> | 80% | 28,384 psi | 47% | 2464 fps | 95.5% |
| Vihtavuori N135 | <<locked>> | 84% | 26,745 psi | 44% | 2500 fps | 95.1% |
| Vihtavuori N140 | <<locked>> | 90% | 34,127 psi | 57% | 2661 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 94% | 45,324 psi | 75% | 2887 fps | 95.4% |
| Vihtavuori N540 | <<locked>> | 94% | 37,449 psi | 62% | 2753 fps | 95.8% |
| Winchester 748 | <<locked>> | 92% | 40,625 psi | 67% | 2861 fps | 95% |
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 57 powders for .308 Win. Ackley Improved loaded with the .308 | 125gr | Nosler Ballistic Tip Hunting. Alliant Power Pro 1200-R delivers the highest muzzle velocity at 3,104 fps; across all powders the maximum-charge window runs from 1,824 fps to 3,104 fps. Accurate 2495 gives the best case fill at 100 %, and 57 of the 57 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 125.0 gr projectile in 0.308" calls for a 1:14.0 twist; slower twists will usually not stabilise this weight. Accurate 2495, Accurate 4064, ADI Benchmark 8208 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. Somchem S321, ADI AR 2219, SNPE Vectan SP 10 rank at the top here: for .308 Win. Ackley Improved with the .308 | 125gr | Nosler Ballistic Tip Hunting 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.