Load Specifications
Load data in caliber .308 Win. Ackley Improved with .308 | 150gr | Alaska Bullet Works Kodiak SP PSPBC bullet and 85 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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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% | 54,244 psi | 90% | 2694 fps | 100% |
| Accurate 2015 | <<locked>> | 94% | 53,243 psi | 88% | 2756 fps | 100% |
| Accurate 2200 | <<locked>> | 84% | 51,082 psi | 85% | 2782 fps | 96.6% |
| Accurate 2230 | <<locked>> | 84% | 51,445 psi | 85% | 2792 fps | 97.1% |
| Accurate 2460 | <<locked>> | 90% | 51,909 psi | 86% | 2772 fps | 99.8% |
| Accurate 2495ᴾ | <<locked>> | 100% | 52,446 psi | 87% | 2802 fps | 100% |
| Accurate 2520 | <<locked>> | 96% | 54,360 psi | 90% | 2858 fps | 99.8% |
| Accurate 4064ᴾ | <<locked>> | 100% | 48,602 psi | 81% | 2782 fps | 99.9% |
| Accurate LT-30 | <<locked>> | 86% | 51,982 psi | 86% | 2674 fps | 100% |
| Accurate LT-32 | <<locked>> | 86% | 52,388 psi | 87% | 2687 fps | 99.7% |
| ADI AR 2206H | <<locked>> | 96% | 52,301 psi | 87% | 2818 fps | 97.7% |
| ADI AR 2207 | <<locked>> | 84% | 52,504 psi | 87% | 2697 fps | 100% |
| ADI AR 2208ᴾ | <<locked>> | 100% | 50,009 psi | 83% | 2756 fps | 96.5% |
| ADI AR 2219 | <<locked>> | 86% | 50,865 psi | 85% | 2779 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 94% | 52,156 psi | 87% | 2785 fps | 98.7% |
| Alliant AR-Comp | <<locked>> | 96% | 53,490 psi | 89% | 2828 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 90% | 53,069 psi | 88% | 2887 fps | 98.5% |
| Alliant Power Pro 2000-MR | <<locked>> | 98% | 51,909 psi | 86% | 2900 fps | 96.5% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 48,472 psi | 81% | 2779 fps | 98% |
| Alliant Reloder-10x | <<locked>> | 90% | 53,824 psi | 89% | 2776 fps | 100% |
| Alliant Reloder-15ᴾ | <<locked>> | 100% | 52,649 psi | 87% | 2844 fps | 97.3% |
| Alliant Reloder-7 | <<locked>> | 84% | 53,722 psi | 89% | 2713 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 88% | 53,795 psi | 89% | 2710 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 96% | 52,011 psi | 86% | 2825 fps | 96.5% |
| Bofors RP3ᴾ | <<locked>> | 100% | 47,979 psi | 80% | 2782 fps | 98% |
| Hodgdon Benchmark | <<locked>> | 92% | 51,779 psi | 86% | 2736 fps | 99% |
| Hodgdon BL-C2 | <<locked>> | 96% | 53,505 psi | 89% | 2861 fps | 99.3% |
| Hodgdon CFE223 | <<locked>> | 92% | 51,967 psi | 86% | 2890 fps | 97.2% |
| Hodgdon H322 | <<locked>> | 92% | 51,590 psi | 86% | 2789 fps | 100% |
| Hodgdon H335 | <<locked>> | 88% | 53,592 psi | 89% | 2825 fps | 99.9% |
| Hodgdon H4198 | <<locked>> | 86% | 53,577 psi | 89% | 2713 fps | 100% |
| Hodgdon H4895 | <<locked>> | 96% | 52,634 psi | 87% | 2831 fps | 98.3% |
| Hodgdon LEVERevolutionᴾ | <<locked>> | 100% | 50,647 psi | 84% | 2848 fps | 98.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,518 psi | 56% | 1677 fps | 100% |
| Hodgdon VARGETᴾ | <<locked>> | 100% | 52,997 psi | 88% | 2815 fps | 98.2% |
| IMR 3031ᴾ | <<locked>> | 100% | 51,953 psi | 86% | 2848 fps | 100% |
| IMR 4064ᴾ | <<locked>> | 100% | 48,544 psi | 81% | 2726 fps | 96.5% |
| IMR 4198 | <<locked>> | 88% | 51,474 psi | 86% | 2697 fps | 100% |
| IMR 4895ᴾ | <<locked>> | 100% | 53,925 psi | 90% | 2881 fps | 98.1% |
| IMR 8208 XBR | <<locked>> | 94% | 52,156 psi | 87% | 2785 fps | 98.7% |
| Lovex D073.4 | <<locked>> | 84% | 52,272 psi | 87% | 2785 fps | 99.6% |
| Lovex D073.5 | <<locked>> | 90% | 52,040 psi | 86% | 2779 fps | 99.3% |
| Lovex D073.6 | <<locked>> | 98% | 53,983 psi | 90% | 2851 fps | 99.8% |
| Lovex S060 | <<locked>> | 96% | 53,606 psi | 89% | 2759 fps | 97.9% |
| Lovex S062ᴾ | <<locked>> | 100% | 51,459 psi | 85% | 2792 fps | 98.7% |
| Norma 200 | <<locked>> | 86% | 53,838 psi | 89% | 2753 fps | 100% |
| Norma 201 | <<locked>> | 96% | 50,966 psi | 85% | 2769 fps | 98.6% |
| Norma 202 | <<locked>> | 98% | 54,462 psi | 90% | 2835 fps | 100% |
| Norma 203Bᴾ | <<locked>> | 100% | 51,634 psi | 86% | 2831 fps | 97.7% |
| Ramshot Big Gameᴾ | <<locked>> | 100% | 52,286 psi | 87% | 2854 fps | 97.5% |
| Ramshot Wild Boar | <<locked>> | 94% | 51,271 psi | 85% | 2805 fps | 97.5% |
| Ramshot X-Terminator | <<locked>> | 92% | 54,085 psi | 90% | 2792 fps | 97.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,591 psi | 56% | 1716 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 90% | 52,083 psi | 87% | 2782 fps | 99.5% |
| ReloadSwiss RS 52 | <<locked>> | 98% | 52,083 psi | 87% | 2904 fps | 97.2% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 46,238 psi | 77% | 2825 fps | 98.9% |
| Rottweil R 901 | <<locked>> | 94% | 52,170 psi | 87% | 2769 fps | 99.8% |
| Rottweil R 902 | <<locked>> | 98% | 51,285 psi | 85% | 2762 fps | 98.6% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 44,628 psi | 74% | 2713 fps | 97% |
| Shooters World AR Plus | <<locked>> | 84% | 52,272 psi | 87% | 2785 fps | 99.6% |
| Shooters World Match Rifle | <<locked>> | 98% | 53,983 psi | 90% | 2851 fps | 99.8% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 51,459 psi | 85% | 2792 fps | 98.7% |
| Shooters World Tactical Rifle | <<locked>> | 88% | 52,707 psi | 88% | 2753 fps | 98.5% |
| SNPE Vectan BA6 1/2 | <<locked>> | 84% | 53,243 psi | 88% | 2457 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 86% | 51,503 psi | 86% | 2785 fps | 99.8% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 47,224 psi | 78% | 2779 fps | 96.5% |
| SNPE Vectan SP 3 | <<locked>> | 88% | 51,634 psi | 86% | 2746 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 96% | 53,882 psi | 90% | 2808 fps | 95.8% |
| SNPE Vectan SP 9 | <<locked>> | 98% | 54,128 psi | 90% | 2841 fps | 98% |
| SNPE Vectan Tubal 3000 | <<locked>> | 96% | 53,911 psi | 90% | 2733 fps | 99.9% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 49,545 psi | 82% | 2680 fps | 100% |
| Somchem S321 | <<locked>> | 92% | 53,417 psi | 89% | 2828 fps | 99.1% |
| Somchem S335 | <<locked>> | 96% | 52,518 psi | 87% | 2733 fps | 100% |
| Somchem S341 | <<locked>> | 96% | 53,243 psi | 88% | 2808 fps | 97.7% |
| Somchem S355ᴾ | <<locked>> | 100% | 45,977 psi | 76% | 2723 fps | 97% |
| Vihtavuori N120 | <<locked>> | 84% | 52,489 psi | 87% | 2651 fps | 100% |
| Vihtavuori N130 | <<locked>> | 92% | 53,737 psi | 89% | 2720 fps | 100% |
| Vihtavuori N133 | <<locked>> | 96% | 53,359 psi | 89% | 2726 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 52,518 psi | 87% | 2792 fps | 100% |
| Vihtavuori N140 | <<locked>> | 98% | 51,735 psi | 86% | 2766 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 44,251 psi | 74% | 2664 fps | 97.9% |
| Vihtavuori N530 | <<locked>> | 94% | 52,866 psi | 88% | 2789 fps | 98.8% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 53,330 psi | 89% | 2808 fps | 99.9% |
| Winchester 748 | <<locked>> | 92% | 52,040 psi | 86% | 2844 fps | 99.3% |
| Winchester StaBALL Match | <<locked>> | 90% | 52,402 psi | 87% | 2831 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% | 50,778 psi | 84% | 2644 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 34,606 psi | 57% | 2434 fps | 99.4% |
| Accurate 2200 | <<locked>> | 80% | 44,831 psi | 74% | 2671 fps | 95.1% |
| Accurate 2230 | <<locked>> | 80% | 44,759 psi | 74% | 2677 fps | 95.6% |
| Accurate 2460 | <<locked>> | 80% | 37,072 psi | 62% | 2510 fps | 97.8% |
| Accurate 2495 | <<locked>> | 80% | 27,021 psi | 45% | 2316 fps | 97.8% |
| Accurate 2520 | <<locked>> | 80% | 31,198 psi | 52% | 2428 fps | 95.4% |
| Accurate 4064 | <<locked>> | 82% | 27,238 psi | 45% | 2333 fps | 95.1% |
| Accurate LT-30 | <<locked>> | 80% | 43,149 psi | 72% | 2530 fps | 99.7% |
| Accurate LT-32 | <<locked>> | 80% | 43,526 psi | 72% | 2543 fps | 98.7% |
| ADI AR 2206H | <<locked>> | 88% | 40,727 psi | 68% | 2608 fps | 95% |
| ADI AR 2207 | <<locked>> | 80% | 46,427 psi | 77% | 2612 fps | 100% |
| ADI AR 2208 | <<locked>> | 96% | 44,411 psi | 74% | 2657 fps | 95.1% |
| ADI AR 2219 | <<locked>> | 80% | 41,669 psi | 69% | 2621 fps | 99.5% |
| ADI Benchmark 8208 | <<locked>> | 84% | 38,087 psi | 63% | 2530 fps | 95.7% |
| Alliant AR-Comp | <<locked>> | 80% | 31,749 psi | 53% | 2454 fps | 100% |
| Alliant Power Pro 1200-R | 38 gr | 80% | 38,087 psi | 63% | 2608 fps | 95% |
| Alliant Power Pro 2000-MR | <<locked>> | 96% | 48,573 psi | 81% | 2841 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 37,449 psi | 62% | 2572 fps | 95.2% |
| Alliant Reloder-10x | <<locked>> | 80% | 39,566 psi | 66% | 2546 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 43,743 psi | 73% | 2690 fps | 95.3% |
| Alliant Reloder-7 | <<locked>> | 80% | 47,688 psi | 79% | 2625 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 41,655 psi | 69% | 2523 fps | 99.7% |
| Baschieri & Pellagri 107 | <<locked>> | 92% | 45,672 psi | 76% | 2717 fps | 95% |
| Bofors RP3 | <<locked>> | 92% | 36,753 psi | 61% | 2569 fps | 95.1% |
| Hodgdon Benchmark | <<locked>> | 80% | 35,868 psi | 60% | 2438 fps | 95.7% |
| Hodgdon BL-C2 | <<locked>> | 84% | 35,520 psi | 59% | 2533 fps | 95.7% |
| Hodgdon CFE223 | 45.6 gr | 88% | 45,237 psi | 75% | 2772 fps | 95.6% |
| Hodgdon H322 | <<locked>> | 80% | 35,259 psi | 59% | 2490 fps | 98.4% |
| Hodgdon H335 | <<locked>> | 80% | 40,814 psi | 68% | 2612 fps | 98.8% |
| Hodgdon H4198 | <<locked>> | 80% | 44,730 psi | 74% | 2572 fps | 99.6% |
| Hodgdon H4895 | <<locked>> | 86% | 38,551 psi | 64% | 2572 fps | 95.1% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 39,218 psi | 65% | 2635 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,801 psi | 41% | 1496 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 39,044 psi | 65% | 2562 fps | 95.1% |
| IMR 3031 | <<locked>> | 80% | 27,746 psi | 46% | 2356 fps | 96.8% |
| IMR 4064 | <<locked>> | 96% | 43,047 psi | 72% | 2628 fps | 95.1% |
| IMR 4198 | <<locked>> | 80% | 40,683 psi | 68% | 2526 fps | 100% |
| IMR 4895 | <<locked>> | 92% | 41,800 psi | 69% | 2671 fps | 95.5% |
| IMR 8208 XBR | <<locked>> | 84% | 38,087 psi | 63% | 2530 fps | 95.7% |
| Lovex D073.4 | <<locked>> | 80% | 45,165 psi | 75% | 2671 fps | 98.8% |
| Lovex D073.5 | <<locked>> | 80% | 36,883 psi | 61% | 2510 fps | 96.5% |
| Lovex D073.6 | <<locked>> | 82% | 31,415 psi | 52% | 2434 fps | 95.5% |
| Lovex S060 | <<locked>> | 88% | 42,235 psi | 70% | 2562 fps | 95.4% |
| Lovex S062 | <<locked>> | 88% | 35,694 psi | 59% | 2497 fps | 95.1% |
| Norma 200 | <<locked>> | 80% | 44,657 psi | 74% | 2615 fps | 100% |
| Norma 201 | <<locked>> | 86% | 37,536 psi | 62% | 2520 fps | 95.7% |
| Norma 202 | <<locked>> | 80% | 30,850 psi | 51% | 2388 fps | 96.1% |
| Norma 203B | <<locked>> | 94% | 42,830 psi | 71% | 2680 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 94% | 42,989 psi | 71% | 2690 fps | 95.2% |
| Ramshot Wild Boar | <<locked>> | 88% | 42,105 psi | 70% | 2644 fps | 95.3% |
| Ramshot X-Terminator | <<locked>> | 84% | 41,669 psi | 69% | 2575 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,990 psi | 42% | 1535 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 37,855 psi | 63% | 2526 fps | 97.2% |
| ReloadSwiss RS 52 | <<locked>> | 94% | 45,368 psi | 75% | 2785 fps | 95.6% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 35,665 psi | 59% | 2585 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 80% | 34,490 psi | 57% | 2438 fps | 97% |
| Rottweil R 902 | <<locked>> | 88% | 37,782 psi | 63% | 2516 fps | 95.7% |
| Rottweil R 903 | <<locked>> | 96% | 39,001 psi | 65% | 2608 fps | 95.4% |
| Shooters World AR Plus | <<locked>> | 80% | 45,165 psi | 75% | 2671 fps | 98.8% |
| Shooters World Match Rifle | <<locked>> | 82% | 31,415 psi | 52% | 2434 fps | 95.5% |
| Shooters World Precision | <<locked>> | 88% | 35,694 psi | 59% | 2497 fps | 95.1% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 40,001 psi | 66% | 2533 fps | 95.8% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 47,848 psi | 79% | 2385 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 42,003 psi | 70% | 2625 fps | 98.9% |
| SNPE Vectan SP 11 | <<locked>> | 98% | 44,251 psi | 74% | 2723 fps | 95.7% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 40,190 psi | 67% | 2556 fps | 99.7% |
| SNPE Vectan SP 7 | <<locked>> | 94% | 50,285 psi | 84% | 2753 fps | 95.1% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 41,959 psi | 70% | 2631 fps | 95.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 33,112 psi | 55% | 2362 fps | 96.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 26,847 psi | 45% | 2224 fps | 95.5% |
| Somchem S321 | <<locked>> | 80% | 35,534 psi | 59% | 2497 fps | 95.3% |
| Somchem S335 | <<locked>> | 80% | 32,416 psi | 54% | 2362 fps | 97.5% |
| Somchem S341 | <<locked>> | 90% | 43,337 psi | 72% | 2644 fps | 95.6% |
| Somchem S355 | <<locked>> | 96% | 40,437 psi | 67% | 2618 fps | 95.6% |
| Vihtavuori N120 | <<locked>> | 80% | 46,427 psi | 77% | 2566 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 37,710 psi | 63% | 2461 fps | 99.9% |
| Vihtavuori N133 | <<locked>> | 80% | 32,982 psi | 55% | 2375 fps | 99% |
| Vihtavuori N135 | <<locked>> | 80% | 27,963 psi | 46% | 2329 fps | 98% |
| Vihtavuori N140 | <<locked>> | 80% | 29,109 psi | 48% | 2326 fps | 95.8% |
| Vihtavuori N150 | <<locked>> | 92% | 34,098 psi | 57% | 2461 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 84% | 38,087 psi | 63% | 2526 fps | 95.8% |
| Vihtavuori N540 | <<locked>> | 82% | 29,791 psi | 49% | 2356 fps | 95.4% |
| Winchester 748 | 40.9 gr | 80% | 34,403 psi | 57% | 2507 fps | 95.5% |
| Winchester StaBALL Match | <<locked>> | 82% | 39,363 psi | 65% | 2602 fps | 95.3% |
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 99 powders for .308 Win. Ackley Improved loaded with the .308 | 150gr | Alaska Bullet Works Kodiak SP PSPBC. ReloadSwiss RS 52 delivers the highest muzzle velocity at 2,904 fps; across all powders the maximum-charge window runs from 1,677 fps to 2,904 fps. Accurate 2495 gives the best case fill at 100 %, and 99 of the 99 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 1:14.0 twist; slower twists will usually not stabilise this weight. Accurate 2495, Accurate 4064, ADI AR 2208 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 | Alaska Bullet Works Kodiak SP PSPBC they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Hodgdon Hybrid 100V, IMR 4166 Enduron, Lovex S065 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.