Load Specifications
Load data in caliber .308 Win. Ackley Improved with .308 | 150gr | Barnes TSX BT 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>> | 82% | 51,619 psi | 86% | 2648 fps | 100% |
| Accurate 2015 | <<locked>> | 96% | 53,490 psi | 89% | 2753 fps | 100% |
| Accurate 2200 | <<locked>> | 86% | 51,851 psi | 86% | 2785 fps | 96.5% |
| Accurate 2230 | <<locked>> | 86% | 52,185 psi | 87% | 2795 fps | 97% |
| Accurate 2460 | <<locked>> | 92% | 52,185 psi | 87% | 2769 fps | 99.8% |
| Accurate 2495ᴾ | <<locked>> | 100% | 48,457 psi | 81% | 2746 fps | 100% |
| Accurate 2520 | <<locked>> | 96% | 52,953 psi | 88% | 2818 fps | 99.7% |
| Accurate 4064ᴾ | <<locked>> | 100% | 44,976 psi | 75% | 2720 fps | 99.6% |
| Accurate LT-30 | <<locked>> | 88% | 52,924 psi | 88% | 2677 fps | 100% |
| Accurate LT-32 | <<locked>> | 88% | 53,403 psi | 89% | 2694 fps | 99.6% |
| ADI AR 2206H | <<locked>> | 98% | 52,924 psi | 88% | 2818 fps | 97.6% |
| ADI AR 2207 | <<locked>> | 86% | 52,968 psi | 88% | 2700 fps | 100% |
| ADI AR 2219 | <<locked>> | 88% | 51,735 psi | 86% | 2782 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 96% | 52,460 psi | 87% | 2782 fps | 98.6% |
| Alliant AR-Comp | <<locked>> | 98% | 53,867 psi | 89% | 2828 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 92% | 53,374 psi | 89% | 2884 fps | 98.4% |
| Alliant Power Pro 2000-MRᴾ | <<locked>> | 100% | 52,765 psi | 88% | 2900 fps | 96.3% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 45,194 psi | 75% | 2713 fps | 97.1% |
| Alliant Reloder-10x | <<locked>> | 92% | 54,041 psi | 90% | 2772 fps | 100% |
| Alliant Reloder-15ᴾ | <<locked>> | 100% | 49,763 psi | 83% | 2789 fps | 96.5% |
| Alliant Reloder-7 | <<locked>> | 86% | 54,288 psi | 90% | 2717 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 88% | 51,271 psi | 85% | 2667 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 98% | 52,591 psi | 87% | 2825 fps | 96.4% |
| Bofors RP3ᴾ | <<locked>> | 100% | 44,817 psi | 74% | 2723 fps | 97.1% |
| Hodgdon Benchmark | <<locked>> | 94% | 52,402 psi | 87% | 2736 fps | 99% |
| Hodgdon BL-C2 | <<locked>> | 98% | 53,969 psi | 90% | 2858 fps | 99.2% |
| Hodgdon CFE223 | <<locked>> | 94% | 52,446 psi | 87% | 2890 fps | 97% |
| Hodgdon H322 | <<locked>> | 92% | 53,621 psi | 89% | 2808 fps | 100% |
| Hodgdon H335 | <<locked>> | 90% | 51,010 psi | 85% | 2779 fps | 99.8% |
| Hodgdon H4198 | <<locked>> | 84% | 51,605 psi | 86% | 2677 fps | 99.9% |
| Hodgdon H4895 | <<locked>> | 98% | 53,229 psi | 88% | 2831 fps | 98.2% |
| Hodgdon LEVERevolutionᴾ | <<locked>> | 100% | 51,068 psi | 85% | 2848 fps | 98.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,953 psi | 55% | 1660 fps | 100% |
| Hodgdon VARGET | <<locked>> | 98% | 51,692 psi | 86% | 2782 fps | 97.8% |
| IMR 3031ᴾ | <<locked>> | 100% | 54,389 psi | 90% | 2877 fps | 100% |
| IMR 4064ᴾ | <<locked>> | 100% | 49,879 psi | 83% | 2736 fps | 96.5% |
| IMR 4198 | <<locked>> | 90% | 52,214 psi | 87% | 2700 fps | 100% |
| IMR 4895ᴾ | <<locked>> | 100% | 50,937 psi | 85% | 2825 fps | 97.4% |
| IMR 8208 XBR | <<locked>> | 96% | 52,460 psi | 87% | 2782 fps | 98.6% |
| Lovex D073.4 | <<locked>> | 86% | 52,837 psi | 88% | 2789 fps | 99.5% |
| Lovex D073.5 | <<locked>> | 92% | 52,373 psi | 87% | 2776 fps | 99.2% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 54,186 psi | 90% | 2848 fps | 99.7% |
| Lovex S053 | <<locked>> | 82% | 53,316 psi | 89% | 2605 fps | 100% |
| Lovex S060 | <<locked>> | 98% | 54,056 psi | 90% | 2756 fps | 97.7% |
| Lovex S062ᴾ | <<locked>> | 100% | 48,472 psi | 81% | 2736 fps | 98.1% |
| Norma 200 | <<locked>> | 88% | 54,027 psi | 90% | 2749 fps | 100% |
| Norma 201 | <<locked>> | 98% | 51,343 psi | 85% | 2766 fps | 98.5% |
| Norma 202 | <<locked>> | 98% | 51,343 psi | 85% | 2782 fps | 99.8% |
| Norma 203Bᴾ | <<locked>> | 100% | 48,762 psi | 81% | 2776 fps | 96.9% |
| Ramshot Big Gameᴾ | <<locked>> | 100% | 49,530 psi | 82% | 2799 fps | 96.7% |
| Ramshot Wild Boar | <<locked>> | 96% | 52,083 psi | 87% | 2808 fps | 97.4% |
| Ramshot X-Terminator | <<locked>> | 92% | 51,445 psi | 85% | 2740 fps | 97.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,938 psi | 55% | 1696 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 92% | 52,678 psi | 88% | 2782 fps | 99.5% |
| ReloadSwiss RS 52ᴾ | <<locked>> | 100% | 52,475 psi | 87% | 2900 fps | 97% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 43,366 psi | 72% | 2753 fps | 98.1% |
| Rottweil R 901 | <<locked>> | 96% | 52,040 psi | 86% | 2762 fps | 99.7% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 51,329 psi | 85% | 2756 fps | 98.5% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 41,524 psi | 69% | 2654 fps | 96% |
| Shooters World AR Plus | <<locked>> | 86% | 52,837 psi | 88% | 2789 fps | 99.5% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 54,186 psi | 90% | 2848 fps | 99.7% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 48,472 psi | 81% | 2736 fps | 98.1% |
| Shooters World Tactical Rifle | <<locked>> | 90% | 53,490 psi | 89% | 2753 fps | 98.4% |
| SNPE Vectan BA6 1/2 | <<locked>> | 86% | 53,809 psi | 89% | 2457 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 88% | 51,953 psi | 86% | 2785 fps | 99.8% |
| SNPE Vectan SP 3 | <<locked>> | 90% | 51,880 psi | 86% | 2743 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 98% | 51,111 psi | 85% | 2785 fps | 97.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 96% | 51,198 psi | 85% | 2687 fps | 99.7% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 47,079 psi | 78% | 2635 fps | 99.8% |
| Somchem S321 | <<locked>> | 94% | 53,780 psi | 89% | 2825 fps | 99% |
| Somchem S335 | <<locked>> | 98% | 52,997 psi | 88% | 2733 fps | 100% |
| Somchem S341 | <<locked>> | 98% | 53,911 psi | 90% | 2808 fps | 97.6% |
| Somchem S355ᴾ | <<locked>> | 100% | 43,076 psi | 72% | 2664 fps | 96.1% |
| Vihtavuori N120 | <<locked>> | 86% | 52,982 psi | 88% | 2651 fps | 100% |
| Vihtavuori N130 | <<locked>> | 92% | 51,314 psi | 85% | 2677 fps | 100% |
| Vihtavuori N133 | <<locked>> | 98% | 54,012 psi | 90% | 2730 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 49,516 psi | 82% | 2746 fps | 100% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 52,069 psi | 87% | 2762 fps | 99.9% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 41,510 psi | 69% | 2608 fps | 97.1% |
| Vihtavuori N530 | <<locked>> | 96% | 53,229 psi | 88% | 2785 fps | 98.7% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 50,285 psi | 84% | 2756 fps | 99.7% |
| Winchester 748 | <<locked>> | 96% | 51,329 psi | 85% | 2825 fps | 99.1% |
| Winchester StaBALL Matchᴾ | <<locked>> | 100% | 54,085 psi | 90% | 2848 fps | 98.3% |
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% | 48,486 psi | 81% | 2605 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 32,227 psi | 54% | 2382 fps | 98.8% |
| Accurate 2200 | <<locked>> | 82% | 45,600 psi | 76% | 2677 fps | 95% |
| Accurate 2230 | <<locked>> | 82% | 45,107 psi | 75% | 2677 fps | 95.4% |
| Accurate 2460 | <<locked>> | 80% | 34,461 psi | 57% | 2454 fps | 96.9% |
| Accurate 2495 | <<locked>> | 80% | 24,337 psi | 40% | 2247 fps | 96.6% |
| Accurate 2520 | <<locked>> | 82% | 32,198 psi | 53% | 2438 fps | 95.6% |
| Accurate 4064 | <<locked>> | 86% | 28,282 psi | 47% | 2369 fps | 95.5% |
| Accurate LT-30 | <<locked>> | 80% | 41,205 psi | 68% | 2487 fps | 99.4% |
| Accurate LT-32 | <<locked>> | 80% | 41,597 psi | 69% | 2497 fps | 98.1% |
| ADI AR 2206H | <<locked>> | 92% | 43,598 psi | 72% | 2661 fps | 95.6% |
| ADI AR 2207 | <<locked>> | 80% | 44,193 psi | 73% | 2572 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 39,247 psi | 65% | 2572 fps | 99.1% |
| ADI Benchmark 8208 | <<locked>> | 86% | 38,189 psi | 63% | 2526 fps | 95.5% |
| Alliant AR-Comp | <<locked>> | 80% | 29,602 psi | 49% | 2402 fps | 99.8% |
| Alliant Power Pro 1200-R | 38.7 gr | 84% | 40,828 psi | 68% | 2661 fps | 95.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 98% | 49,182 psi | 82% | 2838 fps | 95.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 39,726 psi | 66% | 2615 fps | 95.7% |
| Alliant Reloder-10x | <<locked>> | 80% | 37,144 psi | 62% | 2497 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 96% | 43,555 psi | 72% | 2680 fps | 95% |
| Alliant Reloder-7 | <<locked>> | 80% | 45,281 psi | 75% | 2582 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 39,711 psi | 66% | 2480 fps | 99.4% |
| Baschieri & Pellagri 107 | <<locked>> | 96% | 49,197 psi | 82% | 2769 fps | 95.6% |
| Bofors RP3 | <<locked>> | 96% | 38,928 psi | 65% | 2612 fps | 95.6% |
| Hodgdon Benchmark | <<locked>> | 82% | 36,129 psi | 60% | 2438 fps | 95.5% |
| Hodgdon BL-C2 | <<locked>> | 86% | 35,447 psi | 59% | 2530 fps | 95.4% |
| Hodgdon CFE223 | 45.2 gr | 90% | 45,643 psi | 76% | 2769 fps | 95.4% |
| Hodgdon H322 | <<locked>> | 80% | 35,679 psi | 59% | 2497 fps | 98.4% |
| Hodgdon H335 | <<locked>> | 80% | 36,143 psi | 60% | 2510 fps | 97.6% |
| Hodgdon H4198 | <<locked>> | 80% | 45,469 psi | 76% | 2579 fps | 99.6% |
| Hodgdon H4895 | <<locked>> | 90% | 41,176 psi | 68% | 2621 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 39,349 psi | 65% | 2628 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,265 psi | 40% | 1480 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 39,958 psi | 66% | 2575 fps | 95.1% |
| IMR 3031 | <<locked>> | 80% | 28,152 psi | 47% | 2369 fps | 96.8% |
| IMR 4064 | <<locked>> | 96% | 43,918 psi | 73% | 2635 fps | 95% |
| IMR 4198 | <<locked>> | 80% | 38,798 psi | 64% | 2487 fps | 100% |
| IMR 4895 | <<locked>> | 94% | 41,829 psi | 69% | 2664 fps | 95.3% |
| IMR 8208 XBR | <<locked>> | 86% | 38,189 psi | 63% | 2526 fps | 95.5% |
| Lovex D073.4 | <<locked>> | 80% | 42,482 psi | 71% | 2618 fps | 98.2% |
| Lovex D073.5 | <<locked>> | 80% | 34,360 psi | 57% | 2451 fps | 95.4% |
| Lovex D073.6 | <<locked>> | 84% | 30,980 psi | 51% | 2421 fps | 95.1% |
| Lovex S053 | <<locked>> | 80% | 50,401 psi | 84% | 2569 fps | 100% |
| Lovex S060 | <<locked>> | 90% | 42,395 psi | 70% | 2559 fps | 95.2% |
| Lovex S062 | <<locked>> | 92% | 37,608 psi | 62% | 2536 fps | 95.5% |
| Norma 200 | <<locked>> | 80% | 41,930 psi | 70% | 2566 fps | 100% |
| Norma 201 | <<locked>> | 88% | 37,391 psi | 62% | 2513 fps | 95.4% |
| Norma 202 | <<locked>> | 80% | 28,732 psi | 48% | 2333 fps | 95% |
| Norma 203B | <<locked>> | 96% | 42,656 psi | 71% | 2671 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 96% | 43,178 psi | 72% | 2684 fps | 95% |
| Ramshot Wild Boar | <<locked>> | 90% | 42,308 psi | 70% | 2644 fps | 95.1% |
| Ramshot X-Terminator | <<locked>> | 88% | 45,034 psi | 75% | 2631 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,381 psi | 41% | 1519 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 35,578 psi | 59% | 2470 fps | 96.3% |
| ReloadSwiss RS 52 | <<locked>> | 96% | 45,759 psi | 76% | 2785 fps | 95.5% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 35,592 psi | 59% | 2575 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 31,952 psi | 53% | 2375 fps | 96% |
| Rottweil R 902 | <<locked>> | 90% | 37,637 psi | 63% | 2510 fps | 95.4% |
| Rottweil R 903 | <<locked>> | 98% | 38,856 psi | 65% | 2602 fps | 95.2% |
| Shooters World AR Plus | <<locked>> | 80% | 42,482 psi | 71% | 2618 fps | 98.2% |
| Shooters World Match Rifle | <<locked>> | 84% | 30,980 psi | 51% | 2421 fps | 95.1% |
| Shooters World Precision | <<locked>> | 92% | 37,608 psi | 62% | 2536 fps | 95.5% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 40,567 psi | 67% | 2536 fps | 95.7% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 46,122 psi | 77% | 2359 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 39,653 psi | 66% | 2572 fps | 98.3% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 37,913 psi | 63% | 2510 fps | 99.3% |
| SNPE Vectan SP 9 | <<locked>> | 92% | 42,163 psi | 70% | 2628 fps | 95.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 31,053 psi | 52% | 2310 fps | 95.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 26,571 psi | 44% | 2211 fps | 95.1% |
| Somchem S321 | <<locked>> | 82% | 35,723 psi | 59% | 2497 fps | 95.1% |
| Somchem S335 | <<locked>> | 80% | 30,313 psi | 50% | 2313 fps | 96.6% |
| Somchem S341 | <<locked>> | 92% | 43,714 psi | 73% | 2644 fps | 95.4% |
| Somchem S355 | <<locked>> | 98% | 40,422 psi | 67% | 2612 fps | 95.3% |
| Vihtavuori N120 | <<locked>> | 80% | 44,324 psi | 74% | 2530 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 35,491 psi | 59% | 2411 fps | 99.7% |
| Vihtavuori N133 | <<locked>> | 80% | 30,951 psi | 51% | 2326 fps | 98.4% |
| Vihtavuori N135 | <<locked>> | 80% | 25,802 psi | 43% | 2270 fps | 97% |
| Vihtavuori N140 | <<locked>> | 82% | 29,037 psi | 48% | 2323 fps | 95.5% |
| Vihtavuori N150 | <<locked>> | 96% | 36,463 psi | 61% | 2507 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 86% | 38,247 psi | 64% | 2526 fps | 95.6% |
| Vihtavuori N540 | <<locked>> | 84% | 29,776 psi | 49% | 2356 fps | 95.2% |
| Winchester 748 | 40.5 gr | 84% | 34,171 psi | 57% | 2497 fps | 95.2% |
| Winchester StaBALL Match | <<locked>> | 92% | 41,104 psi | 68% | 2628 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 83 powders for .308 Win. Ackley Improved loaded with the .308 | 150gr | Barnes TSX BT. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,900 fps; across all powders the maximum-charge window runs from 1,660 fps to 2,900 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 1:11.5 twist; slower twists will usually not stabilise this weight. Accurate 2495, Accurate 4064, Alliant Power Pro 2000-MR 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 | Barnes TSX 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.