Load Specifications
Load data in caliber .308 Win. Ackley Improved with .308 | 150gr | Nosler Expansion Tip bullet and 82 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, Winchester 748 and Somchem S321.
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>> | 84% | 54,389 psi | 90% | 2677 fps | 100% |
| Accurate 2015 | <<locked>> | 96% | 52,576 psi | 87% | 2730 fps | 100% |
| Accurate 2200 | <<locked>> | 88% | 54,302 psi | 90% | 2812 fps | 96.8% |
| Accurate 2230 | <<locked>> | 86% | 50,865 psi | 85% | 2762 fps | 96.5% |
| Accurate 2460 | <<locked>> | 92% | 50,966 psi | 85% | 2743 fps | 99.6% |
| Accurate 2495ᴾ | <<locked>> | 100% | 47,166 psi | 78% | 2720 fps | 100% |
| Accurate 2520 | <<locked>> | 96% | 51,808 psi | 86% | 2792 fps | 99.5% |
| Accurate 4064ᴾ | <<locked>> | 100% | 43,787 psi | 73% | 2694 fps | 99.4% |
| Accurate LT-30 | <<locked>> | 88% | 51,996 psi | 86% | 2654 fps | 100% |
| Accurate LT-32 | <<locked>> | 88% | 52,460 psi | 87% | 2667 fps | 99.5% |
| ADI AR 2206H | <<locked>> | 98% | 51,793 psi | 86% | 2789 fps | 97.3% |
| ADI AR 2207 | <<locked>> | 86% | 52,127 psi | 87% | 2680 fps | 100% |
| ADI AR 2219 | <<locked>> | 90% | 54,244 psi | 90% | 2808 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 96% | 51,692 psi | 86% | 2759 fps | 98.4% |
| Alliant AR-Comp | <<locked>> | 98% | 52,475 psi | 87% | 2802 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 92% | 52,025 psi | 86% | 2854 fps | 98% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 44,135 psi | 73% | 2687 fps | 96.7% |
| Alliant Reloder-10x | <<locked>> | 92% | 52,939 psi | 88% | 2749 fps | 100% |
| Alliant Reloder-15ᴾ | <<locked>> | 100% | 48,733 psi | 81% | 2762 fps | 96.1% |
| Alliant Reloder-7 | <<locked>> | 86% | 53,635 psi | 89% | 2697 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 90% | 53,693 psi | 89% | 2690 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 98% | 51,401 psi | 85% | 2792 fps | 95.9% |
| Bofors RP3ᴾ | <<locked>> | 100% | 43,424 psi | 72% | 2687 fps | 96.6% |
| Hodgdon Benchmark | <<locked>> | 94% | 51,300 psi | 85% | 2707 fps | 98.7% |
| Hodgdon BL-C2 | <<locked>> | 98% | 52,489 psi | 87% | 2828 fps | 99% |
| Hodgdon CFE223 | <<locked>> | 94% | 51,416 psi | 85% | 2861 fps | 96.6% |
| Hodgdon H322 | <<locked>> | 92% | 52,301 psi | 87% | 2782 fps | 100% |
| Hodgdon H335 | <<locked>> | 92% | 53,519 psi | 89% | 2805 fps | 99.9% |
| Hodgdon H4198 | <<locked>> | 86% | 53,911 psi | 90% | 2700 fps | 100% |
| Hodgdon H4895 | <<locked>> | 98% | 52,112 psi | 87% | 2805 fps | 97.9% |
| Hodgdon LEVERevolutionᴾ | <<locked>> | 100% | 50,125 psi | 83% | 2818 fps | 97.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,866 psi | 55% | 1647 fps | 100% |
| Hodgdon VARGETᴾ | <<locked>> | 100% | 53,998 psi | 90% | 2808 fps | 98% |
| IMR 3031ᴾ | <<locked>> | 100% | 53,011 psi | 88% | 2851 fps | 100% |
| IMR 4064ᴾ | <<locked>> | 100% | 48,805 psi | 81% | 2710 fps | 96.1% |
| IMR 4198 | <<locked>> | 92% | 54,462 psi | 90% | 2720 fps | 100% |
| IMR 4227 | <<locked>> | 82% | 53,838 psi | 89% | 2644 fps | 100% |
| IMR 4895ᴾ | <<locked>> | 100% | 49,806 psi | 83% | 2795 fps | 97% |
| IMR 8208 XBR | <<locked>> | 96% | 51,692 psi | 86% | 2759 fps | 98.4% |
| Lovex D073.4 | <<locked>> | 86% | 51,532 psi | 86% | 2759 fps | 99.4% |
| Lovex D073.5 | <<locked>> | 92% | 51,227 psi | 85% | 2749 fps | 99% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 52,634 psi | 87% | 2818 fps | 99.6% |
| Lovex S053 | <<locked>> | 82% | 52,388 psi | 87% | 2585 fps | 100% |
| Lovex S060 | <<locked>> | 98% | 53,388 psi | 89% | 2733 fps | 97.5% |
| Lovex S062ᴾ | <<locked>> | 100% | 47,369 psi | 79% | 2707 fps | 97.8% |
| Norma 200 | <<locked>> | 88% | 52,924 psi | 88% | 2726 fps | 100% |
| Norma 201ᴾ | <<locked>> | 100% | 53,505 psi | 89% | 2789 fps | 98.7% |
| Norma 202ᴾ | <<locked>> | 100% | 53,563 psi | 89% | 2805 fps | 99.9% |
| Norma 203Bᴾ | <<locked>> | 100% | 47,703 psi | 79% | 2749 fps | 96.5% |
| Ramshot Big Gameᴾ | <<locked>> | 100% | 48,356 psi | 80% | 2766 fps | 96.2% |
| Ramshot Wild Boar | <<locked>> | 98% | 54,418 psi | 90% | 2835 fps | 97.6% |
| Ramshot X-Terminator | <<locked>> | 94% | 53,635 psi | 89% | 2762 fps | 97.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,851 psi | 55% | 1686 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 82% | 53,838 psi | 89% | 2677 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 92% | 51,837 psi | 86% | 2759 fps | 99.3% |
| ReloadSwiss RS 52ᴾ | <<locked>> | 100% | 51,053 psi | 85% | 2867 fps | 96.5% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 42,612 psi | 71% | 2723 fps | 97.7% |
| Rottweil R 901 | <<locked>> | 98% | 54,085 psi | 90% | 2782 fps | 99.8% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 50,169 psi | 83% | 2730 fps | 98.2% |
| Shooters World AR Plus | <<locked>> | 86% | 51,532 psi | 86% | 2759 fps | 99.4% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 52,634 psi | 87% | 2818 fps | 99.6% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 47,369 psi | 79% | 2707 fps | 97.8% |
| Shooters World Tactical Rifle | <<locked>> | 90% | 52,344 psi | 87% | 2726 fps | 98.1% |
| SNPE Vectan BA6 1/2 | <<locked>> | 86% | 53,243 psi | 88% | 2444 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 90% | 54,389 psi | 90% | 2812 fps | 99.9% |
| SNPE Vectan SP 3 | <<locked>> | 92% | 54,288 psi | 90% | 2766 fps | 100% |
| SNPE Vectan SP 9ᴾ | <<locked>> | 100% | 53,345 psi | 89% | 2808 fps | 97.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 98% | 53,388 psi | 89% | 2707 fps | 99.8% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 45,992 psi | 76% | 2608 fps | 99.7% |
| Somchem S321 | <<locked>> | 94% | 52,736 psi | 88% | 2799 fps | 98.8% |
| Somchem S335 | <<locked>> | 98% | 51,880 psi | 86% | 2707 fps | 100% |
| Somchem S341 | <<locked>> | 98% | 52,547 psi | 87% | 2779 fps | 97.2% |
| Vihtavuori N120 | <<locked>> | 86% | 52,199 psi | 87% | 2631 fps | 100% |
| Vihtavuori N130 | <<locked>> | 94% | 53,301 psi | 89% | 2697 fps | 100% |
| Vihtavuori N133 | <<locked>> | 98% | 52,779 psi | 88% | 2703 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 48,254 psi | 80% | 2720 fps | 100% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 50,894 psi | 85% | 2736 fps | 99.8% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 40,553 psi | 67% | 2582 fps | 96.7% |
| Vihtavuori N530 | <<locked>> | 96% | 52,083 psi | 87% | 2756 fps | 98.4% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 48,907 psi | 81% | 2726 fps | 99.5% |
| Winchester 748 | <<locked>> | 98% | 53,635 psi | 89% | 2848 fps | 99.3% |
| Winchester StaBALL Matchᴾ | <<locked>> | 100% | 52,692 psi | 88% | 2815 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% | 47,558 psi | 79% | 2582 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 31,560 psi | 52% | 2359 fps | 98.6% |
| Accurate 2200 | <<locked>> | 84% | 47,645 psi | 79% | 2703 fps | 95.4% |
| Accurate 2230 | <<locked>> | 84% | 47,587 psi | 79% | 2710 fps | 95.8% |
| Accurate 2460 | <<locked>> | 80% | 33,634 psi | 56% | 2425 fps | 96.4% |
| Accurate 2495 | <<locked>> | 80% | 23,511 psi | 39% | 2215 fps | 96% |
| Accurate 2520 | <<locked>> | 82% | 31,386 psi | 52% | 2411 fps | 95.2% |
| Accurate 4064 | <<locked>> | 88% | 29,399 psi | 49% | 2392 fps | 95.8% |
| Accurate LT-30 | <<locked>> | 80% | 40,567 psi | 67% | 2467 fps | 99.2% |
| Accurate LT-32 | <<locked>> | 80% | 40,930 psi | 68% | 2474 fps | 97.9% |
| ADI AR 2206H | <<locked>> | 92% | 42,554 psi | 71% | 2628 fps | 95.1% |
| ADI AR 2207 | <<locked>> | 80% | 43,323 psi | 72% | 2552 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 38,319 psi | 64% | 2543 fps | 98.8% |
| ADI Benchmark 8208 | <<locked>> | 86% | 37,376 psi | 62% | 2500 fps | 95% |
| Alliant AR-Comp | <<locked>> | 80% | 28,747 psi | 48% | 2372 fps | 99.6% |
| Alliant Power Pro 1200-R | 37.9 gr | 84% | 39,798 psi | 66% | 2631 fps | 95.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 38,740 psi | 64% | 2585 fps | 95.2% |
| Alliant Reloder-10x | <<locked>> | 80% | 36,376 psi | 60% | 2474 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 98% | 45,701 psi | 76% | 2710 fps | 95.4% |
| Alliant Reloder-7 | <<locked>> | 80% | 44,208 psi | 73% | 2559 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 38,957 psi | 65% | 2457 fps | 99.2% |
| Baschieri & Pellagri 107 | <<locked>> | 96% | 48,269 psi | 80% | 2743 fps | 95.1% |
| Bofors RP3 | <<locked>> | 96% | 37,884 psi | 63% | 2582 fps | 95.1% |
| Hodgdon Benchmark | <<locked>> | 82% | 35,563 psi | 59% | 2418 fps | 95.1% |
| Hodgdon BL-C2 | <<locked>> | 86% | 34,722 psi | 58% | 2507 fps | 95% |
| Hodgdon CFE223 | <<locked>> | 92% | 47,921 psi | 80% | 2799 fps | 95.8% |
| Hodgdon H322 | <<locked>> | 80% | 35,041 psi | 58% | 2474 fps | 98.1% |
| Hodgdon H335 | <<locked>> | 80% | 35,346 psi | 59% | 2484 fps | 97.2% |
| Hodgdon H4198 | <<locked>> | 80% | 44,773 psi | 74% | 2556 fps | 99.4% |
| Hodgdon H4895 | <<locked>> | 90% | 40,089 psi | 67% | 2592 fps | 95.1% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 40,930 psi | 68% | 2651 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,294 psi | 40% | 1473 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 41,800 psi | 69% | 2605 fps | 95.5% |
| IMR 3031 | <<locked>> | 80% | 27,557 psi | 46% | 2343 fps | 96.4% |
| IMR 4064 | <<locked>> | 98% | 46,079 psi | 77% | 2664 fps | 95.4% |
| IMR 4198 | <<locked>> | 80% | 38,000 psi | 63% | 2464 fps | 100% |
| IMR 4227 | <<locked>> | 80% | 50,720 psi | 84% | 2602 fps | 100% |
| IMR 4895 | <<locked>> | 96% | 43,801 psi | 73% | 2690 fps | 95.6% |
| IMR 8208 XBR | <<locked>> | 86% | 37,376 psi | 62% | 2500 fps | 95% |
| Lovex D073.4 | <<locked>> | 80% | 41,510 psi | 69% | 2592 fps | 97.9% |
| Lovex D073.5 | <<locked>> | 82% | 35,868 psi | 60% | 2477 fps | 95.8% |
| Lovex D073.6 | <<locked>> | 86% | 32,285 psi | 54% | 2448 fps | 95.5% |
| Lovex S053 | <<locked>> | 80% | 49,472 psi | 82% | 2546 fps | 100% |
| Lovex S060 | <<locked>> | 92% | 44,309 psi | 74% | 2585 fps | 95.5% |
| Lovex S062 | <<locked>> | 92% | 36,840 psi | 61% | 2510 fps | 95.1% |
| Norma 200 | <<locked>> | 80% | 40,828 psi | 68% | 2539 fps | 100% |
| Norma 201 | <<locked>> | 90% | 39,030 psi | 65% | 2539 fps | 95.7% |
| Norma 202 | <<locked>> | 82% | 29,892 psi | 50% | 2356 fps | 95.3% |
| Norma 203B | <<locked>> | 96% | 41,930 psi | 70% | 2644 fps | 95% |
| Ramshot Big Game | <<locked>> | 98% | 45,092 psi | 75% | 2707 fps | 95.3% |
| Ramshot Wild Boar | <<locked>> | 92% | 44,353 psi | 74% | 2671 fps | 95.5% |
| Ramshot X-Terminator | <<locked>> | 88% | 44,005 psi | 73% | 2602 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,149 psi | 40% | 1506 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 50,531 psi | 84% | 2631 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 34,722 psi | 58% | 2444 fps | 95.8% |
| ReloadSwiss RS 52 | <<locked>> | 98% | 47,805 psi | 79% | 2812 fps | 95.8% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 37,318 psi | 62% | 2605 fps | 95.8% |
| Rottweil R 901 | <<locked>> | 80% | 31,314 psi | 52% | 2352 fps | 95.6% |
| Rottweil R 902 | <<locked>> | 90% | 36,840 psi | 61% | 2487 fps | 95% |
| Shooters World AR Plus | <<locked>> | 80% | 41,510 psi | 69% | 2592 fps | 97.9% |
| Shooters World Match Rifle | <<locked>> | 86% | 32,285 psi | 54% | 2448 fps | 95.5% |
| Shooters World Precision | <<locked>> | 92% | 36,840 psi | 61% | 2510 fps | 95.1% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 39,508 psi | 66% | 2507 fps | 95.2% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 45,179 psi | 75% | 2336 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 38,812 psi | 64% | 2549 fps | 98% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 37,144 psi | 62% | 2484 fps | 99.1% |
| SNPE Vectan SP 9 | <<locked>> | 94% | 43,859 psi | 73% | 2651 fps | 95.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 30,443 psi | 51% | 2287 fps | 95.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 27,818 psi | 46% | 2241 fps | 95.6% |
| Somchem S321 | 40.8 gr | 84% | 37,275 psi | 62% | 2523 fps | 95.4% |
| Somchem S335 | <<locked>> | 80% | 29,544 psi | 49% | 2283 fps | 96.1% |
| Somchem S341 | <<locked>> | 94% | 45,905 psi | 76% | 2674 fps | 95.8% |
| Vihtavuori N120 | <<locked>> | 80% | 43,468 psi | 72% | 2510 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 34,809 psi | 58% | 2392 fps | 99.6% |
| Vihtavuori N133 | <<locked>> | 80% | 30,313 psi | 50% | 2303 fps | 98.1% |
| Vihtavuori N135 | <<locked>> | 80% | 25,208 psi | 42% | 2247 fps | 96.6% |
| Vihtavuori N140 | <<locked>> | 82% | 28,326 psi | 47% | 2297 fps | 95% |
| Vihtavuori N150 | <<locked>> | 96% | 35,520 psi | 59% | 2480 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 86% | 37,449 psi | 62% | 2500 fps | 95.2% |
| Vihtavuori N540 | <<locked>> | 86% | 31,009 psi | 52% | 2379 fps | 95.5% |
| Winchester 748 | 40.7 gr | 86% | 35,926 psi | 60% | 2530 fps | 95.7% |
| Winchester StaBALL Match | <<locked>> | 92% | 40,205 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 | Nosler Expansion Tip. ReloadSwiss RS 52 delivers the highest muzzle velocity at 2,867 fps; across all powders the maximum-charge window runs from 1,647 fps to 2,867 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 1:12.0 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, Winchester 748, Somchem S321 rank at the top here: for .308 Win. Ackley Improved with the .308 | 150gr | Nosler Expansion Tip 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.