Load Specifications
Load data in caliber .308 Win. Ackley Improved with .308 | 140gr | Barnes X BT bullet and 80 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, Hodgdon H4895 and IMR 3031.
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% | 54,186 psi | 90% | 2762 fps | 100% |
| Accurate 2015 | <<locked>> | 94% | 53,998 psi | 90% | 2835 fps | 100% |
| Accurate 2200 | <<locked>> | 86% | 54,375 psi | 90% | 2900 fps | 96.2% |
| Accurate 2230 | <<locked>> | 84% | 51,924 psi | 86% | 2861 fps | 96.1% |
| Accurate 2460 | <<locked>> | 90% | 52,518 psi | 87% | 2844 fps | 99.5% |
| Accurate 2495ᴾ | <<locked>> | 100% | 53,606 psi | 89% | 2887 fps | 100% |
| Accurate 2520 | <<locked>> | 94% | 53,040 psi | 88% | 2894 fps | 99.4% |
| Accurate 4064ᴾ | <<locked>> | 100% | 49,676 psi | 83% | 2861 fps | 99.6% |
| Accurate LT-30 | <<locked>> | 86% | 51,721 psi | 86% | 2736 fps | 99.9% |
| Accurate LT-32 | <<locked>> | 86% | 52,083 psi | 87% | 2749 fps | 99.2% |
| ADI AR 2206H | <<locked>> | 96% | 52,315 psi | 87% | 2881 fps | 96.8% |
| ADI AR 2207 | <<locked>> | 84% | 52,866 psi | 88% | 2779 fps | 100% |
| ADI AR 2219 | <<locked>> | 88% | 54,056 psi | 90% | 2897 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 94% | 52,040 psi | 86% | 2851 fps | 98% |
| Alliant AR-Comp | <<locked>> | 96% | 53,359 psi | 89% | 2907 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 90% | 52,794 psi | 88% | 2953 fps | 97.7% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 48,428 psi | 80% | 2841 fps | 97.1% |
| Alliant Reloder-10x | <<locked>> | 90% | 53,940 psi | 90% | 2848 fps | 100% |
| Alliant Reloder-15ᴾ | <<locked>> | 100% | 52,562 psi | 87% | 2907 fps | 96.3% |
| Alliant Reloder-7 | <<locked>> | 84% | 54,302 psi | 90% | 2792 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 88% | 53,548 psi | 89% | 2779 fps | 100% |
| Bofors RP3ᴾ | <<locked>> | 100% | 48,283 psi | 80% | 2848 fps | 97.1% |
| Hodgdon Benchmark | <<locked>> | 92% | 51,764 psi | 86% | 2799 fps | 98.4% |
| Hodgdon BL-C2 | <<locked>> | 96% | 53,388 psi | 89% | 2927 fps | 98.7% |
| Hodgdon CFE223 | <<locked>> | 92% | 51,706 psi | 86% | 2949 fps | 96% |
| Hodgdon H322 | <<locked>> | 90% | 52,707 psi | 88% | 2874 fps | 99.9% |
| Hodgdon H335 | <<locked>> | 90% | 53,780 psi | 89% | 2897 fps | 99.7% |
| Hodgdon H4198 | <<locked>> | 84% | 53,606 psi | 89% | 2782 fps | 99.9% |
| Hodgdon H4895 | <<locked>> | 96% | 52,591 psi | 87% | 2897 fps | 97.5% |
| Hodgdon LEVERevolutionᴾ | <<locked>> | 100% | 53,809 psi | 89% | 2963 fps | 98.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,055 psi | 57% | 1732 fps | 100% |
| Hodgdon VARGET | <<locked>> | 98% | 54,012 psi | 90% | 2897 fps | 97.6% |
| IMR 3031 | <<locked>> | 98% | 53,766 psi | 89% | 2953 fps | 100% |
| IMR 4064ᴾ | <<locked>> | 100% | 52,460 psi | 87% | 2851 fps | 96.3% |
| IMR 4198 | <<locked>> | 90% | 54,157 psi | 90% | 2808 fps | 100% |
| IMR 4895ᴾ | <<locked>> | 100% | 53,737 psi | 89% | 2943 fps | 97.2% |
| IMR 8208 XBR | <<locked>> | 94% | 52,040 psi | 86% | 2851 fps | 98% |
| Lovex D073.4 | <<locked>> | 84% | 52,576 psi | 87% | 2854 fps | 99.2% |
| Lovex D073.5 | <<locked>> | 90% | 52,562 psi | 87% | 2848 fps | 98.8% |
| Lovex D073.6 | <<locked>> | 98% | 54,041 psi | 90% | 2920 fps | 99.4% |
| Lovex S060 | <<locked>> | 96% | 53,548 psi | 89% | 2822 fps | 97% |
| Lovex S062ᴾ | <<locked>> | 100% | 51,706 psi | 86% | 2858 fps | 98% |
| Norma 200 | <<locked>> | 84% | 51,648 psi | 86% | 2785 fps | 100% |
| Norma 201 | <<locked>> | 96% | 51,880 psi | 86% | 2844 fps | 98% |
| Norma 202 | <<locked>> | 98% | 54,346 psi | 90% | 2904 fps | 99.8% |
| Norma 203Bᴾ | <<locked>> | 100% | 51,692 psi | 86% | 2897 fps | 96.8% |
| Ramshot Big Gameᴾ | <<locked>> | 100% | 52,185 psi | 87% | 2913 fps | 96.4% |
| Ramshot Wild Boar | <<locked>> | 96% | 54,447 psi | 90% | 2920 fps | 97.1% |
| Ramshot X-Terminator | <<locked>> | 92% | 54,056 psi | 90% | 2851 fps | 96.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,243 psi | 57% | 1772 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 90% | 52,054 psi | 86% | 2848 fps | 99% |
| ReloadSwiss RS 52 | <<locked>> | 98% | 51,837 psi | 86% | 2963 fps | 96.1% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 46,195 psi | 77% | 2874 fps | 98% |
| Rottweil R 901 | <<locked>> | 94% | 53,577 psi | 89% | 2851 fps | 99.6% |
| Rottweil R 902 | <<locked>> | 98% | 51,866 psi | 86% | 2831 fps | 98% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 45,092 psi | 75% | 2782 fps | 96% |
| Shooters World AR Plus | <<locked>> | 84% | 52,576 psi | 87% | 2854 fps | 99.2% |
| Shooters World Match Rifle | <<locked>> | 98% | 54,041 psi | 90% | 2920 fps | 99.4% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 51,706 psi | 86% | 2858 fps | 98% |
| Shooters World Tactical Rifle | <<locked>> | 88% | 52,649 psi | 87% | 2812 fps | 97.7% |
| SNPE Vectan BA6 1/2 | <<locked>> | 84% | 53,417 psi | 89% | 2530 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 86% | 51,459 psi | 85% | 2854 fps | 99.5% |
| SNPE Vectan SP 3 | <<locked>> | 90% | 54,404 psi | 90% | 2858 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 98% | 53,925 psi | 90% | 2900 fps | 97.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 96% | 54,288 psi | 90% | 2805 fps | 99.7% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 49,763 psi | 83% | 2749 fps | 99.8% |
| Somchem S321 | <<locked>> | 92% | 53,432 psi | 89% | 2894 fps | 98.5% |
| Somchem S335 | <<locked>> | 96% | 53,098 psi | 88% | 2808 fps | 99.9% |
| Somchem S341 | <<locked>> | 96% | 52,968 psi | 88% | 2867 fps | 96.7% |
| Somchem S355ᴾ | <<locked>> | 100% | 46,398 psi | 77% | 2789 fps | 96.1% |
| Vihtavuori N120 | <<locked>> | 84% | 52,692 psi | 88% | 2726 fps | 100% |
| Vihtavuori N130 | <<locked>> | 92% | 54,114 psi | 90% | 2795 fps | 100% |
| Vihtavuori N133 | <<locked>> | 96% | 53,476 psi | 89% | 2799 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 52,779 psi | 88% | 2871 fps | 100% |
| Vihtavuori N140 | <<locked>> | 98% | 51,634 psi | 86% | 2831 fps | 99.7% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 44,469 psi | 74% | 2726 fps | 97.1% |
| Vihtavuori N530 | <<locked>> | 94% | 52,750 psi | 88% | 2851 fps | 98.1% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 53,345 psi | 89% | 2877 fps | 99.6% |
| Winchester 748 | <<locked>> | 96% | 54,128 psi | 90% | 2946 fps | 99% |
| Winchester StaBALL Match | <<locked>> | 98% | 53,243 psi | 88% | 2910 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% | 50,763 psi | 84% | 2713 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 35,984 psi | 60% | 2516 fps | 99.1% |
| Accurate 2200 | <<locked>> | 84% | 51,227 psi | 85% | 2844 fps | 95.6% |
| Accurate 2230 | <<locked>> | 82% | 48,356 psi | 80% | 2799 fps | 95.3% |
| Accurate 2460 | <<locked>> | 80% | 38,551 psi | 64% | 2592 fps | 97.3% |
| Accurate 2495 | <<locked>> | 80% | 29,428 psi | 49% | 2418 fps | 97.8% |
| Accurate 2520 | <<locked>> | 80% | 33,910 psi | 56% | 2530 fps | 95.4% |
| Accurate 4064 | <<locked>> | 82% | 29,370 psi | 49% | 2431 fps | 95% |
| Accurate LT-30 | <<locked>> | 80% | 43,511 psi | 72% | 2598 fps | 99.3% |
| Accurate LT-32 | <<locked>> | 80% | 43,859 psi | 73% | 2608 fps | 98% |
| ADI AR 2206H | <<locked>> | 92% | 46,760 psi | 78% | 2782 fps | 95.6% |
| ADI AR 2207 | <<locked>> | 80% | 46,934 psi | 78% | 2690 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 41,800 psi | 69% | 2687 fps | 99% |
| ADI Benchmark 8208 | <<locked>> | 86% | 41,046 psi | 68% | 2644 fps | 95.5% |
| Alliant AR-Comp | <<locked>> | 80% | 32,735 psi | 54% | 2533 fps | 99.9% |
| Alliant Power Pro 1200-R | 39.6 gr | 84% | 43,976 psi | 73% | 2789 fps | 95.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 40,524 psi | 67% | 2690 fps | 95.1% |
| Alliant Reloder-10x | <<locked>> | 80% | 40,553 psi | 67% | 2625 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 98% | 49,719 psi | 83% | 2858 fps | 95.7% |
| Alliant Reloder-7 | <<locked>> | 80% | 48,414 psi | 80% | 2703 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 42,148 psi | 70% | 2589 fps | 99.3% |
| Bofors RP3 | <<locked>> | 94% | 40,176 psi | 67% | 2694 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 82% | 39,117 psi | 65% | 2559 fps | 95.6% |
| Hodgdon BL-C2 | <<locked>> | 86% | 38,841 psi | 65% | 2661 fps | 95.7% |
| Hodgdon CFE223 | <<locked>> | 90% | 48,240 psi | 80% | 2887 fps | 95.2% |
| Hodgdon H322 | <<locked>> | 80% | 38,653 psi | 64% | 2621 fps | 98.4% |
| Hodgdon H335 | <<locked>> | 80% | 39,146 psi | 65% | 2635 fps | 97.7% |
| Hodgdon H4198 | <<locked>> | 80% | 47,747 psi | 79% | 2687 fps | 99.5% |
| Hodgdon H4895 | 42.4 gr | 90% | 44,150 psi | 73% | 2743 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 42,206 psi | 70% | 2749 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,367 psi | 42% | 1549 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 42,728 psi | 71% | 2694 fps | 95% |
| IMR 3031 | 36.4 gr | 80% | 31,285 psi | 52% | 2503 fps | 97.2% |
| IMR 4064 | <<locked>> | 98% | 49,487 psi | 82% | 2802 fps | 95.6% |
| IMR 4198 | <<locked>> | 80% | 40,973 psi | 68% | 2595 fps | 100% |
| IMR 4895 | <<locked>> | 94% | 44,962 psi | 75% | 2789 fps | 95.3% |
| IMR 8208 XBR | <<locked>> | 86% | 41,046 psi | 68% | 2644 fps | 95.5% |
| Lovex D073.4 | <<locked>> | 80% | 46,122 psi | 77% | 2746 fps | 98.3% |
| Lovex D073.5 | <<locked>> | 80% | 38,087 psi | 63% | 2582 fps | 95.8% |
| Lovex D073.6 | <<locked>> | 84% | 34,664 psi | 58% | 2559 fps | 95.6% |
| Lovex S060 | <<locked>> | 90% | 45,252 psi | 75% | 2677 fps | 95.2% |
| Lovex S062 | <<locked>> | 90% | 38,943 psi | 65% | 2618 fps | 95% |
| Norma 200 | <<locked>> | 80% | 46,079 psi | 77% | 2697 fps | 100% |
| Norma 201 | <<locked>> | 88% | 41,147 psi | 68% | 2648 fps | 95.7% |
| Norma 202 | <<locked>> | 80% | 32,010 psi | 53% | 2464 fps | 95.5% |
| Norma 203B | <<locked>> | 96% | 45,759 psi | 76% | 2792 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 98% | 49,037 psi | 81% | 2858 fps | 95.7% |
| Ramshot Wild Boar | <<locked>> | 90% | 45,078 psi | 75% | 2759 fps | 95% |
| Ramshot X-Terminator | <<locked>> | 88% | 47,877 psi | 80% | 2749 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,382 psi | 42% | 1581 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 38,421 psi | 64% | 2592 fps | 96.4% |
| ReloadSwiss RS 52 | <<locked>> | 96% | 48,501 psi | 81% | 2904 fps | 95.2% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 38,595 psi | 64% | 2703 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 80% | 36,434 psi | 61% | 2523 fps | 96.6% |
| Rottweil R 902 | <<locked>> | 88% | 39,131 psi | 65% | 2595 fps | 95% |
| Rottweil R 903 | <<locked>> | 98% | 42,511 psi | 71% | 2733 fps | 95.3% |
| Shooters World AR Plus | <<locked>> | 80% | 46,122 psi | 77% | 2746 fps | 98.3% |
| Shooters World Match Rifle | <<locked>> | 84% | 34,664 psi | 58% | 2559 fps | 95.6% |
| Shooters World Precision | <<locked>> | 90% | 38,943 psi | 65% | 2618 fps | 95% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 40,785 psi | 68% | 2602 fps | 95% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 48,167 psi | 80% | 2457 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 42,627 psi | 71% | 2697 fps | 98.3% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 40,654 psi | 68% | 2625 fps | 99.3% |
| SNPE Vectan SP 9 | <<locked>> | 92% | 45,005 psi | 75% | 2746 fps | 95% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 34,258 psi | 57% | 2434 fps | 96.1% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 29,414 psi | 49% | 2336 fps | 95.6% |
| Somchem S321 | <<locked>> | 82% | 38,856 psi | 65% | 2625 fps | 95.3% |
| Somchem S335 | <<locked>> | 80% | 33,692 psi | 56% | 2441 fps | 97% |
| Somchem S341 | <<locked>> | 92% | 46,717 psi | 78% | 2762 fps | 95.3% |
| Somchem S355 | <<locked>> | 98% | 43,801 psi | 73% | 2740 fps | 95.4% |
| Vihtavuori N120 | <<locked>> | 80% | 46,862 psi | 78% | 2641 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 38,638 psi | 64% | 2533 fps | 99.8% |
| Vihtavuori N133 | <<locked>> | 80% | 33,823 psi | 56% | 2444 fps | 98.5% |
| Vihtavuori N135 | <<locked>> | 80% | 29,254 psi | 49% | 2408 fps | 97.6% |
| Vihtavuori N140 | <<locked>> | 80% | 30,313 psi | 50% | 2402 fps | 95.1% |
| Vihtavuori N150 | <<locked>> | 94% | 37,188 psi | 62% | 2579 fps | 95% |
| Vihtavuori N530 | <<locked>> | 86% | 41,220 psi | 68% | 2648 fps | 95.7% |
| Vihtavuori N540 | <<locked>> | 84% | 32,750 psi | 54% | 2480 fps | 95.5% |
| Winchester 748 | <<locked>> | 84% | 37,115 psi | 62% | 2621 fps | 95.3% |
| Winchester StaBALL Match | <<locked>> | 92% | 43,947 psi | 73% | 2749 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 80 powders for .308 Win. Ackley Improved loaded with the .308 | 140gr | Barnes X BT. Hodgdon LEVERevolution delivers the highest muzzle velocity at 2,963 fps; across all powders the maximum-charge window runs from 1,732 fps to 2,963 fps. Accurate 2495 gives the best case fill at 100 %, and 80 of the 80 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (415 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 140.0 gr projectile in 0.308" calls for a 1:13.5 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. Alliant Power Pro 1200-R, Hodgdon H4895, IMR 3031 rank at the top here: for .308 Win. Ackley Improved with the .308 | 140gr | Barnes X BT 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.