Load Specifications
Load data in caliber .308 Win. Ackley Improved with .308 | 150gr | Alaska Bullet Works Kodiak SP SPBC bullet and 88 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 52, Hodgdon CFE223 and Alliant Power Pro 1200-R.
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 2015 | <<locked>> | 92% | 51,895 psi | 86% | 2749 fps | 100% |
| Accurate 2200 | <<locked>> | 84% | 52,881 psi | 88% | 2828 fps | 97.2% |
| Accurate 2230 | <<locked>> | 84% | 53,142 psi | 88% | 2835 fps | 97.6% |
| Accurate 2460 | <<locked>> | 90% | 53,911 psi | 90% | 2815 fps | 99.9% |
| Accurate 2495 | <<locked>> | 98% | 51,271 psi | 85% | 2799 fps | 100% |
| Accurate 2520 | <<locked>> | 94% | 52,620 psi | 87% | 2844 fps | 99.8% |
| Accurate 2520 | <<locked>> | 94% | 52,620 psi | 87% | 2844 fps | 99.8% |
| Accurate 4064ᴾ | <<locked>> | 100% | 50,546 psi | 84% | 2825 fps | 100% |
| Accurate LT-30 | <<locked>> | 86% | 53,374 psi | 89% | 2707 fps | 100% |
| Accurate LT-32 | <<locked>> | 86% | 53,780 psi | 89% | 2726 fps | 99.8% |
| ADI AR 2206H | <<locked>> | 96% | 54,085 psi | 90% | 2861 fps | 98.2% |
| ADI AR 2207 | <<locked>> | 84% | 53,998 psi | 90% | 2730 fps | 100% |
| ADI AR 2208ᴾ | <<locked>> | 100% | 51,605 psi | 86% | 2799 fps | 97.1% |
| ADI AR 2219 | <<locked>> | 86% | 52,663 psi | 87% | 2818 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 94% | 53,650 psi | 89% | 2825 fps | 99.1% |
| Alliant AR-Comp | <<locked>> | 94% | 52,069 psi | 87% | 2822 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 88% | 51,416 psi | 85% | 2877 fps | 98.4% |
| Alliant Power Pro 2000-MR | <<locked>> | 98% | 53,577 psi | 89% | 2949 fps | 97.2% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 50,212 psi | 83% | 2822 fps | 98.5% |
| Alliant Reloder-10x | <<locked>> | 88% | 52,272 psi | 87% | 2766 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 98% | 51,314 psi | 85% | 2838 fps | 97.3% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 44,701 psi | 74% | 2795 fps | 96.6% |
| Alliant Reloder-7 | <<locked>> | 82% | 51,953 psi | 86% | 2703 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 86% | 51,895 psi | 86% | 2700 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 96% | 53,795 psi | 89% | 2871 fps | 97.1% |
| Bofors RP3ᴾ | <<locked>> | 100% | 50,067 psi | 83% | 2828 fps | 98.5% |
| Hodgdon Benchmark | <<locked>> | 92% | 53,229 psi | 88% | 2772 fps | 99.3% |
| Hodgdon BL-C2 | <<locked>> | 94% | 52,098 psi | 87% | 2854 fps | 99.3% |
| Hodgdon CFE223 | <<locked>> | 92% | 53,650 psi | 89% | 2936 fps | 97.7% |
| Hodgdon H322 | <<locked>> | 92% | 53,374 psi | 89% | 2828 fps | 100% |
| Hodgdon H335 | <<locked>> | 86% | 51,996 psi | 86% | 2815 fps | 99.9% |
| Hodgdon H380ᴾ | <<locked>> | 100% | 52,460 psi | 87% | 2838 fps | 96.1% |
| Hodgdon H4198 | <<locked>> | 84% | 51,692 psi | 86% | 2703 fps | 100% |
| Hodgdon H4895 | <<locked>> | 96% | 54,447 psi | 90% | 2874 fps | 98.7% |
| Hodgdon LEVERevolutionᴾ | <<locked>> | 100% | 52,446 psi | 87% | 2894 fps | 98.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,634 psi | 56% | 1693 fps | 100% |
| Hodgdon VARGET | <<locked>> | 98% | 51,300 psi | 85% | 2805 fps | 98.2% |
| IMR 3031ᴾ | <<locked>> | 100% | 54,186 psi | 90% | 2894 fps | 100% |
| IMR 4064ᴾ | <<locked>> | 100% | 50,270 psi | 84% | 2769 fps | 97.1% |
| IMR 4198 | <<locked>> | 88% | 52,852 psi | 88% | 2730 fps | 100% |
| IMR 4895 | <<locked>> | 98% | 52,489 psi | 87% | 2874 fps | 98.1% |
| IMR 8208 XBR | <<locked>> | 94% | 53,650 psi | 89% | 2825 fps | 99.1% |
| Lovex D073.4 | <<locked>> | 84% | 54,056 psi | 90% | 2828 fps | 99.8% |
| Lovex D073.5 | <<locked>> | 90% | 53,882 psi | 90% | 2822 fps | 99.6% |
| Lovex D073.6 | <<locked>> | 96% | 52,620 psi | 87% | 2844 fps | 99.8% |
| Lovex S060 | <<locked>> | 94% | 51,967 psi | 86% | 2753 fps | 97.9% |
| Lovex S062ᴾ | <<locked>> | 100% | 53,606 psi | 89% | 2838 fps | 99.1% |
| Norma 200 | <<locked>> | 84% | 52,040 psi | 86% | 2740 fps | 100% |
| Norma 201 | <<locked>> | 96% | 52,837 psi | 88% | 2812 fps | 99% |
| Norma 202 | <<locked>> | 96% | 53,156 psi | 88% | 2831 fps | 100% |
| Norma 203Bᴾ | <<locked>> | 100% | 53,722 psi | 89% | 2881 fps | 98.2% |
| Ramshot Big Gameᴾ | <<locked>> | 100% | 54,418 psi | 90% | 2904 fps | 98.1% |
| Ramshot Wild Boar | <<locked>> | 94% | 53,171 psi | 88% | 2851 fps | 98% |
| Ramshot X-Terminator | <<locked>> | 90% | 52,344 psi | 87% | 2782 fps | 97.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,011 psi | 57% | 1739 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 90% | 53,693 psi | 89% | 2822 fps | 99.7% |
| ReloadSwiss RS 52 | <<locked>> | 98% | 54,157 psi | 90% | 2956 fps | 97.8% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 47,805 psi | 79% | 2871 fps | 99.4% |
| Rottweil R 901 | <<locked>> | 94% | 53,896 psi | 90% | 2808 fps | 99.9% |
| Rottweil R 902 | <<locked>> | 98% | 53,171 psi | 88% | 2808 fps | 99% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 46,644 psi | 77% | 2762 fps | 97.6% |
| Shooters World AR Plus | <<locked>> | 84% | 54,056 psi | 90% | 2828 fps | 99.8% |
| Shooters World Match Rifle | <<locked>> | 96% | 52,620 psi | 87% | 2844 fps | 99.8% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 53,606 psi | 89% | 2838 fps | 99.1% |
| Shooters World Tactical Rifle | <<locked>> | 88% | 54,201 psi | 90% | 2792 fps | 98.8% |
| SNPE Vectan BA6 1/2 | <<locked>> | 84% | 54,114 psi | 90% | 2480 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 86% | 53,069 psi | 88% | 2825 fps | 100% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 48,892 psi | 81% | 2822 fps | 97.2% |
| SNPE Vectan SP 3 | <<locked>> | 88% | 52,881 psi | 88% | 2779 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 94% | 52,257 psi | 87% | 2799 fps | 95.8% |
| SNPE Vectan SP 9 | <<locked>> | 96% | 52,707 psi | 88% | 2835 fps | 98% |
| SNPE Vectan Tubal 3000 | <<locked>> | 94% | 52,301 psi | 87% | 2726 fps | 99.9% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 51,256 psi | 85% | 2720 fps | 100% |
| Somchem S321 | <<locked>> | 90% | 51,387 psi | 85% | 2812 fps | 99% |
| Somchem S335 | <<locked>> | 96% | 54,288 psi | 90% | 2772 fps | 100% |
| Somchem S341 | <<locked>> | 94% | 51,735 psi | 86% | 2802 fps | 97.7% |
| Somchem S355ᴾ | <<locked>> | 100% | 47,630 psi | 79% | 2766 fps | 97.6% |
| Vihtavuori N120 | <<locked>> | 84% | 53,940 psi | 90% | 2680 fps | 100% |
| Vihtavuori N130 | <<locked>> | 90% | 52,388 psi | 87% | 2713 fps | 100% |
| Vihtavuori N133 | <<locked>> | 94% | 51,880 psi | 86% | 2720 fps | 100% |
| Vihtavuori N135 | <<locked>> | 98% | 51,387 psi | 85% | 2789 fps | 100% |
| Vihtavuori N140 | <<locked>> | 98% | 53,505 psi | 89% | 2805 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 46,122 psi | 77% | 2710 fps | 98.5% |
| Vihtavuori N530 | <<locked>> | 94% | 54,331 psi | 90% | 2828 fps | 99.2% |
| Vihtavuori N540 | <<locked>> | 98% | 51,909 psi | 86% | 2802 fps | 99.9% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 42,380 psi | 70% | 2631 fps | 95.9% |
| Winchester 748 | <<locked>> | 92% | 53,867 psi | 89% | 2887 fps | 99.6% |
| Winchester StaBALL Match | <<locked>> | 90% | 54,360 psi | 90% | 2877 fps | 98.7% |
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 2015 | <<locked>> | 80% | 35,795 psi | 59% | 2474 fps | 99.6% |
| Accurate 2200 | <<locked>> | 80% | 46,325 psi | 77% | 2713 fps | 95.8% |
| Accurate 2230 | <<locked>> | 80% | 46,180 psi | 77% | 2720 fps | 96.2% |
| Accurate 2460 | <<locked>> | 80% | 38,392 psi | 64% | 2549 fps | 98.3% |
| Accurate 2495 | <<locked>> | 80% | 28,137 psi | 47% | 2356 fps | 98.4% |
| Accurate 2520 | <<locked>> | 80% | 32,430 psi | 54% | 2467 fps | 96.2% |
| Accurate 2520 | <<locked>> | 80% | 32,430 psi | 54% | 2467 fps | 96.2% |
| Accurate 4064 | <<locked>> | 80% | 26,658 psi | 44% | 2326 fps | 95.1% |
| Accurate LT-30 | <<locked>> | 80% | 44,280 psi | 74% | 2566 fps | 99.8% |
| Accurate LT-32 | <<locked>> | 80% | 44,643 psi | 74% | 2579 fps | 99% |
| ADI AR 2206H | <<locked>> | 86% | 39,581 psi | 66% | 2602 fps | 95% |
| ADI AR 2207 | <<locked>> | 80% | 47,892 psi | 80% | 2644 fps | 100% |
| ADI AR 2208 | <<locked>> | 94% | 43,149 psi | 72% | 2648 fps | 95.1% |
| ADI AR 2219 | <<locked>> | 80% | 42,801 psi | 71% | 2657 fps | 99.7% |
| ADI Benchmark 8208 | <<locked>> | 82% | 37,057 psi | 62% | 2523 fps | 95.6% |
| Alliant AR-Comp | <<locked>> | 80% | 32,866 psi | 55% | 2493 fps | 100% |
| Alliant Power Pro 1200-R | 39.3 gr | 80% | 39,581 psi | 66% | 2651 fps | 95.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 94% | 47,152 psi | 78% | 2835 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 36,622 psi | 61% | 2566 fps | 95.2% |
| Alliant Reloder-10x | <<locked>> | 80% | 40,654 psi | 68% | 2575 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 42,569 psi | 71% | 2684 fps | 95.2% |
| Alliant Reloder-17 | <<locked>> | 98% | 41,945 psi | 70% | 2736 fps | 95.7% |
| Alliant Reloder-7 | <<locked>> | 80% | 48,979 psi | 81% | 2657 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 43,033 psi | 71% | 2559 fps | 99.8% |
| Baschieri & Pellagri 107 | <<locked>> | 92% | 47,094 psi | 78% | 2759 fps | 95.7% |
| Bofors RP3 | <<locked>> | 90% | 35,911 psi | 60% | 2562 fps | 95.1% |
| Hodgdon Benchmark | <<locked>> | 80% | 37,086 psi | 62% | 2477 fps | 96.3% |
| Hodgdon BL-C2 | <<locked>> | 82% | 34,534 psi | 57% | 2523 fps | 95.6% |
| Hodgdon CFE223 | 46 gr | 86% | 43,700 psi | 73% | 2759 fps | 95.5% |
| Hodgdon H322 | <<locked>> | 80% | 36,405 psi | 60% | 2530 fps | 98.8% |
| Hodgdon H335 | <<locked>> | 80% | 42,308 psi | 70% | 2651 fps | 99.1% |
| Hodgdon H380 | <<locked>> | 98% | 49,124 psi | 82% | 2782 fps | 95.3% |
| Hodgdon H4198 | <<locked>> | 80% | 45,948 psi | 76% | 2608 fps | 99.8% |
| Hodgdon H4895 | <<locked>> | 86% | 39,813 psi | 66% | 2612 fps | 95.7% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 37,956 psi | 63% | 2621 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,903 psi | 41% | 1512 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 37,884 psi | 63% | 2552 fps | 95% |
| IMR 3031 | <<locked>> | 80% | 28,819 psi | 48% | 2398 fps | 97.5% |
| IMR 4064 | <<locked>> | 94% | 41,930 psi | 70% | 2621 fps | 95.1% |
| IMR 4198 | <<locked>> | 80% | 41,829 psi | 69% | 2556 fps | 100% |
| IMR 4895 | <<locked>> | 90% | 40,799 psi | 68% | 2664 fps | 95.5% |
| IMR 8208 XBR | <<locked>> | 82% | 37,057 psi | 62% | 2523 fps | 95.6% |
| Lovex D073.4 | <<locked>> | 80% | 46,934 psi | 78% | 2717 fps | 99.2% |
| Lovex D073.5 | <<locked>> | 80% | 38,159 psi | 63% | 2549 fps | 97.1% |
| Lovex D073.6 | <<locked>> | 80% | 30,516 psi | 51% | 2421 fps | 95.4% |
| Lovex S060 | <<locked>> | 86% | 40,959 psi | 68% | 2556 fps | 95.4% |
| Lovex S062 | <<locked>> | 86% | 34,795 psi | 58% | 2487 fps | 95% |
| Norma 200 | <<locked>> | 80% | 45,992 psi | 76% | 2648 fps | 100% |
| Norma 201 | <<locked>> | 84% | 36,347 psi | 60% | 2507 fps | 95.5% |
| Norma 202 | <<locked>> | 80% | 31,865 psi | 53% | 2425 fps | 96.7% |
| Norma 203B | <<locked>> | 92% | 41,756 psi | 69% | 2671 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 92% | 41,684 psi | 69% | 2680 fps | 95.2% |
| Ramshot Wild Boar | <<locked>> | 86% | 40,770 psi | 68% | 2635 fps | 95.2% |
| Ramshot X-Terminator | <<locked>> | 84% | 42,989 psi | 71% | 2618 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,106 psi | 42% | 1552 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 38,870 psi | 65% | 2562 fps | 97.7% |
| ReloadSwiss RS 52 | 46.6 gr | 92% | 44,092 psi | 73% | 2779 fps | 95.6% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 34,403 psi | 57% | 2572 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 80% | 35,621 psi | 59% | 2474 fps | 97.6% |
| Rottweil R 902 | <<locked>> | 86% | 36,782 psi | 61% | 2510 fps | 95.7% |
| Rottweil R 903 | <<locked>> | 94% | 38,043 psi | 63% | 2602 fps | 95.4% |
| Shooters World AR Plus | <<locked>> | 80% | 46,934 psi | 78% | 2717 fps | 99.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 30,516 psi | 51% | 2421 fps | 95.4% |
| Shooters World Precision | <<locked>> | 86% | 34,795 psi | 58% | 2487 fps | 95% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 41,191 psi | 68% | 2572 fps | 96.5% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 48,791 psi | 81% | 2411 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 43,569 psi | 72% | 2667 fps | 99.2% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 43,091 psi | 72% | 2717 fps | 95.7% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 41,234 psi | 69% | 2589 fps | 99.8% |
| SNPE Vectan SP 7 | <<locked>> | 92% | 48,631 psi | 81% | 2743 fps | 95% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 40,654 psi | 68% | 2618 fps | 95.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 33,924 psi | 56% | 2395 fps | 97.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 27,514 psi | 46% | 2254 fps | 96.1% |
| Somchem S321 | <<locked>> | 80% | 36,912 psi | 61% | 2543 fps | 96% |
| Somchem S335 | <<locked>> | 80% | 33,373 psi | 55% | 2398 fps | 98% |
| Somchem S341 | <<locked>> | 88% | 42,090 psi | 70% | 2638 fps | 95.5% |
| Somchem S355 | <<locked>> | 94% | 39,421 psi | 65% | 2612 fps | 95.6% |
| Vihtavuori N120 | <<locked>> | 80% | 47,877 psi | 80% | 2598 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 38,624 psi | 64% | 2490 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 33,823 psi | 56% | 2405 fps | 99.3% |
| Vihtavuori N135 | <<locked>> | 80% | 28,863 psi | 48% | 2362 fps | 98.5% |
| Vihtavuori N140 | <<locked>> | 80% | 30,066 psi | 50% | 2362 fps | 96.4% |
| Vihtavuori N150 | <<locked>> | 90% | 33,272 psi | 55% | 2454 fps | 95% |
| Vihtavuori N530 | <<locked>> | 82% | 36,796 psi | 61% | 2513 fps | 95.7% |
| Vihtavuori N540 | <<locked>> | 80% | 28,906 psi | 48% | 2346 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 39,798 psi | 66% | 2579 fps | 95% |
| Winchester 748 | <<locked>> | 80% | 35,737 psi | 59% | 2552 fps | 96.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 37,826 psi | 63% | 2582 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 106 powders for .308 Win. Ackley Improved loaded with the .308 | 150gr | Alaska Bullet Works Kodiak SP SPBC. ReloadSwiss RS 52 delivers the highest muzzle velocity at 2,956 fps; across all powders the maximum-charge window runs from 1,693 fps to 2,956 fps. Accurate 2700 gives the best case fill at 100 %, and 106 of the 106 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (415 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.308" calls for a 1:15.5 twist; slower twists will usually not stabilise this weight. Accurate 2700, Accurate 4064, Accurate 4350 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. ReloadSwiss RS 52, Hodgdon CFE223, Alliant Power Pro 1200-R rank at the top here: for .308 Win. Ackley Improved with the .308 | 150gr | Alaska Bullet Works Kodiak SP SPBC they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2700, Accurate 4350, Alliant Reloder-16 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.