Load Specifications
Load data in caliber .308 Win. Ackley Improved with .308 | 150gr | Barnes TAC-X bullet and 82 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% | 50,778 psi | 84% | 2628 fps | 100% |
| Accurate 2015 | <<locked>> | 96% | 52,649 psi | 87% | 2733 fps | 100% |
| Accurate 2200 | <<locked>> | 86% | 50,966 psi | 85% | 2759 fps | 96.2% |
| Accurate 2230 | <<locked>> | 86% | 51,343 psi | 85% | 2772 fps | 96.7% |
| Accurate 2460 | <<locked>> | 92% | 51,039 psi | 85% | 2746 fps | 99.6% |
| Accurate 2495ᴾ | <<locked>> | 100% | 47,239 psi | 78% | 2720 fps | 100% |
| Accurate 2520 | <<locked>> | 96% | 51,822 psi | 86% | 2795 fps | 99.5% |
| Accurate 4064ᴾ | <<locked>> | 100% | 43,859 psi | 73% | 2697 fps | 99.4% |
| Accurate LT-30 | <<locked>> | 88% | 52,083 psi | 87% | 2654 fps | 100% |
| Accurate LT-32 | <<locked>> | 88% | 52,533 psi | 87% | 2671 fps | 99.5% |
| ADI AR 2206H | <<locked>> | 98% | 51,866 psi | 86% | 2792 fps | 97.3% |
| ADI AR 2207 | <<locked>> | 86% | 52,257 psi | 87% | 2684 fps | 100% |
| ADI AR 2219 | <<locked>> | 90% | 54,317 psi | 90% | 2812 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 96% | 51,779 psi | 86% | 2762 fps | 98.4% |
| Alliant AR-Comp | <<locked>> | 98% | 52,547 psi | 87% | 2805 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 92% | 52,518 psi | 87% | 2861 fps | 98.1% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 44,193 psi | 73% | 2690 fps | 96.8% |
| Alliant Reloder-10x | <<locked>> | 92% | 53,069 psi | 88% | 2753 fps | 100% |
| Alliant Reloder-15ᴾ | <<locked>> | 100% | 48,762 psi | 81% | 2766 fps | 96.1% |
| Alliant Reloder-7 | <<locked>> | 86% | 53,737 psi | 89% | 2700 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 90% | 54,070 psi | 90% | 2697 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 98% | 51,808 psi | 86% | 2802 fps | 96% |
| Bofors RP3ᴾ | <<locked>> | 100% | 43,830 psi | 73% | 2697 fps | 96.8% |
| Hodgdon Benchmark | <<locked>> | 94% | 51,343 psi | 85% | 2710 fps | 98.7% |
| Hodgdon BL-C2 | <<locked>> | 98% | 52,982 psi | 88% | 2838 fps | 99% |
| Hodgdon CFE223 | <<locked>> | 94% | 51,430 psi | 85% | 2861 fps | 96.6% |
| Hodgdon H322 | <<locked>> | 92% | 52,373 psi | 87% | 2785 fps | 100% |
| Hodgdon H335 | <<locked>> | 92% | 53,621 psi | 89% | 2808 fps | 99.9% |
| Hodgdon H4198 | <<locked>> | 86% | 53,998 psi | 90% | 2700 fps | 100% |
| Hodgdon H4895 | <<locked>> | 98% | 52,156 psi | 87% | 2805 fps | 97.9% |
| Hodgdon LEVERevolutionᴾ | <<locked>> | 100% | 50,198 psi | 83% | 2822 fps | 98% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,054 psi | 55% | 1654 fps | 100% |
| Hodgdon VARGETᴾ | <<locked>> | 100% | 54,012 psi | 90% | 2808 fps | 98.1% |
| IMR 3031ᴾ | <<locked>> | 100% | 53,490 psi | 89% | 2858 fps | 100% |
| IMR 4064ᴾ | <<locked>> | 100% | 49,211 psi | 82% | 2717 fps | 96.2% |
| IMR 4198 | <<locked>> | 90% | 51,155 psi | 85% | 2677 fps | 100% |
| IMR 4227 | <<locked>> | 82% | 53,983 psi | 90% | 2644 fps | 100% |
| IMR 4895ᴾ | <<locked>> | 100% | 49,908 psi | 83% | 2799 fps | 97.1% |
| IMR 8208 XBR | <<locked>> | 96% | 51,779 psi | 86% | 2762 fps | 98.4% |
| Lovex D073.4 | <<locked>> | 86% | 51,590 psi | 86% | 2759 fps | 99.4% |
| Lovex D073.5 | <<locked>> | 92% | 51,256 psi | 85% | 2753 fps | 99% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 53,127 psi | 88% | 2825 fps | 99.6% |
| Lovex S053 | <<locked>> | 82% | 52,533 psi | 87% | 2589 fps | 100% |
| Lovex S060 | <<locked>> | 98% | 53,447 psi | 89% | 2736 fps | 97.5% |
| Lovex S062ᴾ | <<locked>> | 100% | 47,790 psi | 79% | 2717 fps | 97.9% |
| Norma 200 | <<locked>> | 88% | 53,084 psi | 88% | 2730 fps | 100% |
| Norma 201ᴾ | <<locked>> | 100% | 53,563 psi | 89% | 2792 fps | 98.7% |
| Norma 202ᴾ | <<locked>> | 100% | 53,592 psi | 89% | 2808 fps | 99.9% |
| Norma 203Bᴾ | <<locked>> | 100% | 47,761 psi | 79% | 2753 fps | 96.6% |
| Ramshot Big Gameᴾ | <<locked>> | 100% | 48,414 psi | 80% | 2769 fps | 96.2% |
| Ramshot Wild Boar | <<locked>> | 98% | 54,447 psi | 90% | 2838 fps | 97.7% |
| Ramshot X-Terminator | <<locked>> | 94% | 53,693 psi | 89% | 2766 fps | 97.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,054 psi | 55% | 1693 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 82% | 53,954 psi | 90% | 2680 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 92% | 51,924 psi | 86% | 2762 fps | 99.3% |
| ReloadSwiss RS 52ᴾ | <<locked>> | 100% | 51,474 psi | 86% | 2874 fps | 96.7% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 42,670 psi | 71% | 2726 fps | 97.7% |
| Rottweil R 901 | <<locked>> | 96% | 51,184 psi | 85% | 2740 fps | 99.6% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 50,618 psi | 84% | 2736 fps | 98.2% |
| Shooters World AR Plus | <<locked>> | 86% | 51,590 psi | 86% | 2759 fps | 99.4% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 53,127 psi | 88% | 2825 fps | 99.6% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 47,790 psi | 79% | 2717 fps | 97.9% |
| Shooters World Tactical Rifle | <<locked>> | 90% | 52,460 psi | 87% | 2726 fps | 98.1% |
| SNPE Vectan BA6 1/2 | <<locked>> | 86% | 53,388 psi | 89% | 2444 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 90% | 54,462 psi | 90% | 2812 fps | 99.9% |
| SNPE Vectan SP 3 | <<locked>> | 92% | 54,389 psi | 90% | 2769 fps | 100% |
| SNPE Vectan SP 9ᴾ | <<locked>> | 100% | 53,824 psi | 89% | 2815 fps | 97.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 98% | 53,867 psi | 89% | 2717 fps | 99.8% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 46,093 psi | 77% | 2612 fps | 99.7% |
| Somchem S321 | <<locked>> | 94% | 52,779 psi | 88% | 2802 fps | 98.8% |
| Somchem S335 | <<locked>> | 98% | 51,924 psi | 86% | 2710 fps | 100% |
| Somchem S341 | <<locked>> | 98% | 53,011 psi | 88% | 2785 fps | 97.3% |
| Vihtavuori N120 | <<locked>> | 86% | 52,315 psi | 87% | 2635 fps | 100% |
| Vihtavuori N130 | <<locked>> | 94% | 53,780 psi | 89% | 2703 fps | 100% |
| Vihtavuori N133 | <<locked>> | 98% | 53,243 psi | 88% | 2710 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 48,356 psi | 80% | 2723 fps | 100% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 51,010 psi | 85% | 2740 fps | 99.8% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 40,596 psi | 67% | 2582 fps | 96.7% |
| Vihtavuori N530 | <<locked>> | 96% | 52,156 psi | 87% | 2759 fps | 98.5% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 49,298 psi | 82% | 2733 fps | 99.5% |
| Winchester 748 | <<locked>> | 98% | 54,056 psi | 90% | 2858 fps | 99.3% |
| Winchester StaBALL Matchᴾ | <<locked>> | 100% | 52,765 psi | 88% | 2818 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% | 47,645 psi | 79% | 2585 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 31,662 psi | 53% | 2362 fps | 98.6% |
| Accurate 2200 | <<locked>> | 84% | 47,732 psi | 79% | 2707 fps | 95.4% |
| Accurate 2230 | <<locked>> | 82% | 44,280 psi | 74% | 2651 fps | 95% |
| Accurate 2460 | <<locked>> | 80% | 33,707 psi | 56% | 2431 fps | 96.5% |
| Accurate 2495 | <<locked>> | 80% | 23,598 psi | 39% | 2218 fps | 96.1% |
| Accurate 2520 | <<locked>> | 82% | 31,720 psi | 53% | 2421 fps | 95.3% |
| Accurate 4064 | <<locked>> | 86% | 27,586 psi | 46% | 2343 fps | 95% |
| Accurate LT-30 | <<locked>> | 80% | 40,669 psi | 68% | 2470 fps | 99.2% |
| Accurate LT-32 | <<locked>> | 80% | 41,031 psi | 68% | 2477 fps | 97.9% |
| ADI AR 2206H | <<locked>> | 92% | 42,873 psi | 71% | 2638 fps | 95.2% |
| ADI AR 2207 | <<locked>> | 80% | 43,453 psi | 72% | 2556 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 38,406 psi | 64% | 2549 fps | 98.8% |
| ADI Benchmark 8208 | <<locked>> | 86% | 37,507 psi | 62% | 2503 fps | 95.1% |
| Alliant AR-Comp | <<locked>> | 80% | 28,848 psi | 48% | 2375 fps | 99.7% |
| Alliant Power Pro 1200-R | 38 gr | 84% | 39,958 psi | 66% | 2635 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 39,102 psi | 65% | 2592 fps | 95.4% |
| Alliant Reloder-10x | <<locked>> | 80% | 36,492 psi | 61% | 2477 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 98% | 45,730 psi | 76% | 2713 fps | 95.4% |
| Alliant Reloder-7 | <<locked>> | 80% | 44,324 psi | 74% | 2562 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 39,030 psi | 65% | 2461 fps | 99.2% |
| Baschieri & Pellagri 107 | <<locked>> | 96% | 48,312 psi | 80% | 2743 fps | 95.2% |
| Bofors RP3 | <<locked>> | 96% | 37,942 psi | 63% | 2585 fps | 95.1% |
| Hodgdon Benchmark | <<locked>> | 82% | 35,650 psi | 59% | 2418 fps | 95.2% |
| Hodgdon BL-C2 | <<locked>> | 86% | 34,766 psi | 58% | 2507 fps | 95% |
| Hodgdon CFE223 | 45.4 gr | 92% | 47,950 psi | 80% | 2802 fps | 95.8% |
| Hodgdon H322 | <<locked>> | 80% | 35,128 psi | 58% | 2477 fps | 98.1% |
| Hodgdon H335 | <<locked>> | 80% | 35,418 psi | 59% | 2487 fps | 97.2% |
| Hodgdon H4198 | <<locked>> | 80% | 44,889 psi | 75% | 2559 fps | 99.4% |
| Hodgdon H4895 | <<locked>> | 90% | 40,422 psi | 67% | 2598 fps | 95.3% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 41,278 psi | 69% | 2661 fps | 95.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,221 psi | 40% | 1473 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 41,858 psi | 70% | 2605 fps | 95.5% |
| IMR 3031 | <<locked>> | 80% | 27,644 psi | 46% | 2346 fps | 96.4% |
| IMR 4064 | <<locked>> | 98% | 46,122 psi | 77% | 2664 fps | 95.5% |
| IMR 4198 | <<locked>> | 80% | 38,087 psi | 63% | 2464 fps | 100% |
| IMR 4227 | <<locked>> | 80% | 50,865 psi | 85% | 2602 fps | 100% |
| IMR 4895 | <<locked>> | 96% | 43,830 psi | 73% | 2694 fps | 95.7% |
| IMR 8208 XBR | <<locked>> | 86% | 37,507 psi | 62% | 2503 fps | 95.1% |
| Lovex D073.4 | <<locked>> | 80% | 41,626 psi | 69% | 2595 fps | 97.9% |
| Lovex D073.5 | <<locked>> | 80% | 33,663 psi | 56% | 2428 fps | 95% |
| Lovex D073.6 | <<locked>> | 86% | 32,387 psi | 54% | 2451 fps | 95.6% |
| Lovex S053 | <<locked>> | 80% | 49,617 psi | 82% | 2549 fps | 100% |
| Lovex S060 | <<locked>> | 92% | 44,367 psi | 74% | 2589 fps | 95.6% |
| Lovex S062 | <<locked>> | 92% | 36,927 psi | 61% | 2513 fps | 95.1% |
| Norma 200 | <<locked>> | 80% | 40,944 psi | 68% | 2543 fps | 100% |
| Norma 201 | <<locked>> | 88% | 36,666 psi | 61% | 2490 fps | 95% |
| Norma 202 | <<locked>> | 82% | 29,979 psi | 50% | 2359 fps | 95.4% |
| Norma 203B | <<locked>> | 96% | 41,974 psi | 70% | 2648 fps | 95.1% |
| Ramshot Big Game | <<locked>> | 98% | 45,426 psi | 75% | 2717 fps | 95.5% |
| Ramshot Wild Boar | <<locked>> | 92% | 44,440 psi | 74% | 2674 fps | 95.6% |
| Ramshot X-Terminator | <<locked>> | 88% | 44,077 psi | 73% | 2605 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,062 psi | 40% | 1506 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 50,618 psi | 84% | 2635 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 34,809 psi | 58% | 2448 fps | 95.9% |
| ReloadSwiss RS 52 | <<locked>> | 96% | 44,846 psi | 75% | 2759 fps | 95% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 37,376 psi | 62% | 2608 fps | 95.9% |
| Rottweil R 901 | <<locked>> | 80% | 31,415 psi | 52% | 2356 fps | 95.6% |
| Rottweil R 902 | <<locked>> | 90% | 36,898 psi | 61% | 2490 fps | 95% |
| Shooters World AR Plus | <<locked>> | 80% | 41,626 psi | 69% | 2595 fps | 97.9% |
| Shooters World Match Rifle | <<locked>> | 86% | 32,387 psi | 54% | 2451 fps | 95.6% |
| Shooters World Precision | <<locked>> | 92% | 36,927 psi | 61% | 2513 fps | 95.1% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 39,842 psi | 66% | 2513 fps | 95.4% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 45,310 psi | 75% | 2339 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 38,899 psi | 65% | 2549 fps | 98% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 37,275 psi | 62% | 2487 fps | 99.2% |
| SNPE Vectan SP 9 | <<locked>> | 94% | 44,237 psi | 73% | 2657 fps | 95.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 30,530 psi | 51% | 2290 fps | 95.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 27,891 psi | 46% | 2244 fps | 95.6% |
| Somchem S321 | <<locked>> | 84% | 37,333 psi | 62% | 2526 fps | 95.5% |
| Somchem S335 | <<locked>> | 80% | 29,631 psi | 49% | 2287 fps | 96.2% |
| Somchem S341 | <<locked>> | 92% | 42,815 psi | 71% | 2618 fps | 95% |
| Vihtavuori N120 | <<locked>> | 80% | 43,598 psi | 72% | 2513 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 34,925 psi | 58% | 2395 fps | 99.6% |
| Vihtavuori N133 | <<locked>> | 80% | 30,371 psi | 50% | 2306 fps | 98.1% |
| Vihtavuori N135 | <<locked>> | 80% | 25,295 psi | 42% | 2251 fps | 96.6% |
| Vihtavuori N140 | <<locked>> | 82% | 28,398 psi | 47% | 2300 fps | 95.1% |
| Vihtavuori N150 | <<locked>> | 96% | 35,578 psi | 59% | 2480 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 86% | 37,521 psi | 62% | 2503 fps | 95.2% |
| Vihtavuori N540 | <<locked>> | 86% | 31,053 psi | 52% | 2382 fps | 95.6% |
| Winchester 748 | 40.8 gr | 86% | 36,013 psi | 60% | 2533 fps | 95.7% |
| Winchester StaBALL Match | <<locked>> | 92% | 40,234 psi | 67% | 2602 fps | 95.1% |
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 82 powders for .308 Win. Ackley Improved loaded with the .308 | 150gr | Barnes TAC-X. ReloadSwiss RS 52 delivers the highest muzzle velocity at 2,874 fps; across all powders the maximum-charge window runs from 1,654 fps to 2,874 fps. Accurate 2495 gives the best case fill at 100 %, and 82 of the 82 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 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. Hodgdon CFE223, Alliant Power Pro 1200-R, Winchester 748 rank at the top here: for .308 Win. Ackley Improved with the .308 | 150gr | Barnes TAC-X 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.