Load Specifications
Load data in caliber .308 Win. Ackley Improved with .311 | 130gr | Impala LWHV LS bullet and 60 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are SNPE Vectan SP 10, ADI AR 2219 and Hodgdon H335.
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% | 53,171 psi | 88% | 2825 fps | 100% |
| Accurate 2015 | <<locked>> | 98% | 54,404 psi | 90% | 2923 fps | 100% |
| Accurate 2460 | <<locked>> | 94% | 53,417 psi | 89% | 2933 fps | 98.9% |
| Accurate 2495ᴾ | <<locked>> | 100% | 46,818 psi | 78% | 2867 fps | 99.9% |
| Accurate 2520 | <<locked>> | 98% | 53,374 psi | 89% | 2976 fps | 98.6% |
| Accurate 4064ᴾ | <<locked>> | 100% | 43,497 psi | 72% | 2831 fps | 98.1% |
| Accurate LT-30 | <<locked>> | 90% | 53,417 psi | 89% | 2831 fps | 99.7% |
| Accurate LT-32 | <<locked>> | 90% | 53,882 psi | 90% | 2844 fps | 98.6% |
| ADI AR 2207 | <<locked>> | 88% | 53,882 psi | 90% | 2881 fps | 100% |
| ADI AR 2219 | <<locked>> | 90% | 51,764 psi | 86% | 2940 fps | 99.5% |
| ADI Benchmark 8208 | <<locked>> | 98% | 52,866 psi | 88% | 2930 fps | 96.9% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 53,606 psi | 89% | 2999 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 94% | 53,388 psi | 89% | 3035 fps | 96.5% |
| Alliant Reloder-10x | <<locked>> | 92% | 51,793 psi | 86% | 2904 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 86% | 52,736 psi | 88% | 2851 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 90% | 52,011 psi | 86% | 2825 fps | 99.7% |
| Hodgdon Benchmark | <<locked>> | 96% | 53,113 psi | 88% | 2887 fps | 97.6% |
| Hodgdon BL-C2ᴾ | <<locked>> | 100% | 54,143 psi | 90% | 3012 fps | 97.8% |
| Hodgdon H322 | <<locked>> | 94% | 53,563 psi | 89% | 2969 fps | 99.6% |
| Hodgdon H335 | <<locked>> | 92% | 51,648 psi | 86% | 2940 fps | 98.9% |
| Hodgdon H4198 | <<locked>> | 86% | 52,388 psi | 87% | 2835 fps | 99.3% |
| Hodgdon H4895ᴾ | <<locked>> | 100% | 53,359 psi | 89% | 2976 fps | 96.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,431 psi | 56% | 1768 fps | 100% |
| Hodgdon VARGETᴾ | <<locked>> | 100% | 52,011 psi | 86% | 2927 fps | 95.8% |
| IMR 3031ᴾ | <<locked>> | 100% | 50,734 psi | 84% | 2989 fps | 99.8% |
| IMR 4198 | <<locked>> | 92% | 52,141 psi | 87% | 2864 fps | 100% |
| IMR 4227 | <<locked>> | 82% | 52,359 psi | 87% | 2795 fps | 100% |
| IMR 8208 XBR | <<locked>> | 98% | 52,866 psi | 88% | 2930 fps | 96.9% |
| Lovex D073.4 | <<locked>> | 88% | 54,012 psi | 90% | 2949 fps | 98.5% |
| Lovex D073.5 | <<locked>> | 94% | 53,548 psi | 89% | 2933 fps | 97.9% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 50,850 psi | 84% | 2946 fps | 98.3% |
| Lovex S053 | <<locked>> | 84% | 54,418 psi | 90% | 2785 fps | 100% |
| Lovex S062ᴾ | <<locked>> | 100% | 46,427 psi | 77% | 2835 fps | 95.7% |
| Norma 200 | <<locked>> | 88% | 52,779 psi | 88% | 2890 fps | 100% |
| Norma 201ᴾ | <<locked>> | 100% | 52,243 psi | 87% | 2917 fps | 96.9% |
| Norma 202ᴾ | <<locked>> | 100% | 51,851 psi | 86% | 2940 fps | 98.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,547 psi | 56% | 1811 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 82% | 52,533 psi | 87% | 2831 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 94% | 53,461 psi | 89% | 2940 fps | 98.3% |
| Rottweil R 901 | <<locked>> | 98% | 54,012 psi | 90% | 2933 fps | 99% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 49,458 psi | 82% | 2861 fps | 96.3% |
| Shooters World AR Plus | <<locked>> | 88% | 54,012 psi | 90% | 2949 fps | 98.5% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 50,850 psi | 84% | 2946 fps | 98.3% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 46,427 psi | 77% | 2835 fps | 95.7% |
| Shooters World Tactical Rifle | <<locked>> | 92% | 54,085 psi | 90% | 2900 fps | 96.6% |
| SNPE Vectan BA6 1/2 | <<locked>> | 86% | 52,373 psi | 87% | 2598 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 90% | 52,678 psi | 88% | 2946 fps | 98.9% |
| SNPE Vectan SP 3 | <<locked>> | 92% | 52,315 psi | 87% | 2907 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 98% | 52,127 psi | 87% | 2841 fps | 98.8% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 44,744 psi | 74% | 2736 fps | 98.6% |
| Somchem S321 | <<locked>> | 96% | 54,346 psi | 90% | 2976 fps | 97.5% |
| Somchem S335ᴾ | <<locked>> | 100% | 53,635 psi | 89% | 2887 fps | 99.5% |
| Vihtavuori N120 | <<locked>> | 88% | 53,795 psi | 89% | 2828 fps | 100% |
| Vihtavuori N130 | <<locked>> | 94% | 52,054 psi | 86% | 2844 fps | 100% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 54,259 psi | 90% | 2890 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 46,688 psi | 78% | 2861 fps | 99.8% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 48,863 psi | 81% | 2864 fps | 98.8% |
| Vihtavuori N530 | <<locked>> | 98% | 53,693 psi | 89% | 2933 fps | 97.1% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 47,471 psi | 79% | 2854 fps | 98.1% |
| Winchester 748 | <<locked>> | 98% | 51,503 psi | 86% | 2972 fps | 97.6% |
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% | 46,891 psi | 78% | 2726 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 32,416 psi | 54% | 2503 fps | 97.2% |
| Accurate 2460 | <<locked>> | 82% | 36,811 psi | 61% | 2621 fps | 95.4% |
| Accurate 2495 | <<locked>> | 82% | 27,282 psi | 45% | 2434 fps | 95.7% |
| Accurate 2520 | <<locked>> | 88% | 38,682 psi | 64% | 2707 fps | 95.5% |
| Accurate 4064 | <<locked>> | 92% | 34,447 psi | 57% | 2638 fps | 95.6% |
| Accurate LT-30 | <<locked>> | 80% | 40,118 psi | 67% | 2595 fps | 97.9% |
| Accurate LT-32 | <<locked>> | 80% | 40,524 psi | 67% | 2602 fps | 96% |
| ADI AR 2207 | <<locked>> | 80% | 42,931 psi | 71% | 2707 fps | 100% |
| ADI AR 2219 | 37.2 gr | 80% | 37,869 psi | 63% | 2674 fps | 97.1% |
| ADI Benchmark 8208 | <<locked>> | 94% | 46,949 psi | 78% | 2828 fps | 95.6% |
| Alliant AR-Comp | <<locked>> | 80% | 29,356 psi | 49% | 2507 fps | 98.6% |
| Alliant Power Pro 1200-R | <<locked>> | 90% | 47,224 psi | 78% | 2923 fps | 95.1% |
| Alliant Reloder-10x | <<locked>> | 80% | 36,622 psi | 61% | 2618 fps | 99.1% |
| Alliant Reloder-7 | <<locked>> | 80% | 44,106 psi | 73% | 2707 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 38,493 psi | 64% | 2582 fps | 97.8% |
| Hodgdon Benchmark | <<locked>> | 88% | 42,177 psi | 70% | 2687 fps | 95.1% |
| Hodgdon BL-C2 | <<locked>> | 92% | 41,597 psi | 69% | 2789 fps | 95% |
| Hodgdon H322 | <<locked>> | 80% | 34,954 psi | 58% | 2602 fps | 96.2% |
| Hodgdon H335 | 38.5 gr | 80% | 35,273 psi | 59% | 2612 fps | 95.1% |
| Hodgdon H4198 | <<locked>> | 80% | 43,976 psi | 73% | 2687 fps | 98.1% |
| Hodgdon H4895 | <<locked>> | 98% | 50,212 psi | 83% | 2923 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,743 psi | 41% | 1575 fps | 100% |
| Hodgdon VARGET | <<locked>> | 98% | 48,979 psi | 81% | 2877 fps | 95.2% |
| IMR 3031 | <<locked>> | 82% | 29,965 psi | 50% | 2526 fps | 95.1% |
| IMR 4198 | <<locked>> | 80% | 37,536 psi | 62% | 2598 fps | 99.7% |
| IMR 4227 | <<locked>> | 80% | 49,501 psi | 82% | 2749 fps | 100% |
| IMR 8208 XBR | <<locked>> | 94% | 46,949 psi | 78% | 2828 fps | 95.6% |
| Lovex D073.4 | <<locked>> | 80% | 41,394 psi | 69% | 2726 fps | 96% |
| Lovex D073.5 | <<locked>> | 86% | 41,263 psi | 69% | 2717 fps | 95.3% |
| Lovex D073.6 | <<locked>> | 90% | 37,057 psi | 62% | 2684 fps | 95% |
| Lovex S053 | <<locked>> | 80% | 48,834 psi | 81% | 2703 fps | 100% |
| Lovex S062 | <<locked>> | 98% | 43,801 psi | 73% | 2782 fps | 95% |
| Norma 200 | <<locked>> | 80% | 41,611 psi | 69% | 2700 fps | 99.9% |
| Norma 201 | <<locked>> | 96% | 46,702 psi | 78% | 2822 fps | 95.7% |
| Norma 202 | <<locked>> | 88% | 36,347 psi | 60% | 2641 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,976 psi | 41% | 1617 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 49,472 psi | 82% | 2785 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 39,450 psi | 66% | 2680 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 84% | 36,825 psi | 61% | 2598 fps | 95.4% |
| Rottweil R 902 | <<locked>> | 96% | 44,251 psi | 74% | 2766 fps | 95% |
| Shooters World AR Plus | <<locked>> | 80% | 41,394 psi | 69% | 2726 fps | 96% |
| Shooters World Match Rifle | <<locked>> | 90% | 37,057 psi | 62% | 2684 fps | 95% |
| Shooters World Precision | <<locked>> | 98% | 43,801 psi | 73% | 2782 fps | 95% |
| Shooters World Tactical Rifle | <<locked>> | 88% | 47,616 psi | 79% | 2792 fps | 95.2% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 45,121 psi | 75% | 2493 fps | 100% |
| SNPE Vectan SP 10 | 38.5 gr | 80% | 38,435 psi | 64% | 2677 fps | 96.1% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 36,709 psi | 61% | 2615 fps | 97.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 36,883 psi | 61% | 2556 fps | 95.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 31,821 psi | 53% | 2457 fps | 95% |
| Somchem S321 | <<locked>> | 90% | 44,875 psi | 75% | 2815 fps | 95.5% |
| Somchem S335 | <<locked>> | 82% | 32,300 psi | 54% | 2470 fps | 95.1% |
| Vihtavuori N120 | <<locked>> | 80% | 42,902 psi | 71% | 2661 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 35,128 psi | 58% | 2530 fps | 98.7% |
| Vihtavuori N133 | <<locked>> | 80% | 30,647 psi | 51% | 2431 fps | 96.4% |
| Vihtavuori N135 | <<locked>> | 82% | 27,688 psi | 46% | 2428 fps | 95.5% |
| Vihtavuori N140 | <<locked>> | 88% | 34,432 psi | 57% | 2572 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 92% | 44,599 psi | 74% | 2779 fps | 95.1% |
| Vihtavuori N540 | <<locked>> | 92% | 37,318 psi | 62% | 2654 fps | 95.6% |
| Winchester 748 | <<locked>> | 92% | 42,844 psi | 71% | 2808 fps | 95.6% |
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 60 powders for .308 Win. Ackley Improved loaded with the .311 | 130gr | Impala LWHV LS. Alliant Power Pro 1200-R delivers the highest muzzle velocity at 3,035 fps; across all powders the maximum-charge window runs from 1,768 fps to 3,035 fps. Accurate 2495 gives the best case fill at 100 %, and 60 of the 60 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (415 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 130.0 gr projectile in 0.311" calls for a 1:11.0 twist; slower twists will usually not stabilise this weight. Accurate 2495, Accurate 4064, Alliant AR-Comp 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. SNPE Vectan SP 10, ADI AR 2219, Hodgdon H335 rank at the top here: for .308 Win. Ackley Improved with the .311 | 130gr | Impala LWHV LS 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.