Load Specifications
Load data in caliber .308 Win. Ackley Improved with .308 | 150gr | Norma Kalahari bullet and 85 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 Hodgdon BL-C2.
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% | 53,084 psi | 88% | 2664 fps | 100% |
| Accurate 2015 | <<locked>> | 94% | 51,996 psi | 86% | 2726 fps | 100% |
| Accurate 2200 | <<locked>> | 86% | 53,388 psi | 89% | 2805 fps | 96.8% |
| Accurate 2230 | <<locked>> | 86% | 53,563 psi | 89% | 2808 fps | 97.2% |
| Accurate 2460 | <<locked>> | 92% | 54,157 psi | 90% | 2792 fps | 99.9% |
| Accurate 2495ᴾ | <<locked>> | 100% | 50,444 psi | 84% | 2766 fps | 100% |
| Accurate 2520 | <<locked>> | 94% | 51,053 psi | 85% | 2785 fps | 99.5% |
| Accurate 4064ᴾ | <<locked>> | 100% | 46,775 psi | 78% | 2743 fps | 99.7% |
| Accurate LT-30 | <<locked>> | 88% | 53,911 psi | 90% | 2687 fps | 100% |
| Accurate LT-32 | <<locked>> | 88% | 54,360 psi | 90% | 2703 fps | 99.7% |
| ADI AR 2206H | <<locked>> | 98% | 54,186 psi | 90% | 2831 fps | 97.8% |
| ADI AR 2207 | <<locked>> | 84% | 51,314 psi | 85% | 2671 fps | 100% |
| ADI AR 2208ᴾ | <<locked>> | 100% | 48,834 psi | 81% | 2720 fps | 96% |
| ADI AR 2219 | <<locked>> | 88% | 52,895 psi | 88% | 2795 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 96% | 53,983 psi | 90% | 2799 fps | 98.8% |
| Alliant AR-Comp | <<locked>> | 96% | 51,648 psi | 86% | 2795 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 90% | 51,401 psi | 85% | 2848 fps | 98.1% |
| Alliant Power Pro 2000-MRᴾ | <<locked>> | 100% | 53,809 psi | 89% | 2917 fps | 96.6% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 46,818 psi | 78% | 2740 fps | 97.5% |
| Alliant Reloder-10x | <<locked>> | 90% | 52,431 psi | 87% | 2746 fps | 100% |
| Alliant Reloder-15ᴾ | <<locked>> | 100% | 51,039 psi | 85% | 2805 fps | 96.8% |
| Alliant Reloder-7 | <<locked>> | 84% | 52,678 psi | 88% | 2687 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 88% | 52,605 psi | 87% | 2684 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 98% | 53,751 psi | 89% | 2838 fps | 96.6% |
| Bofors RP3ᴾ | <<locked>> | 100% | 46,340 psi | 77% | 2740 fps | 97.4% |
| Hodgdon Benchmark | <<locked>> | 94% | 53,490 psi | 89% | 2746 fps | 99.1% |
| Hodgdon BL-C2 | <<locked>> | 96% | 51,909 psi | 86% | 2825 fps | 99% |
| Hodgdon CFE223 | <<locked>> | 94% | 53,940 psi | 90% | 2907 fps | 97.3% |
| Hodgdon H322 | <<locked>> | 90% | 51,416 psi | 85% | 2772 fps | 100% |
| Hodgdon H335 | <<locked>> | 90% | 52,591 psi | 87% | 2799 fps | 99.9% |
| Hodgdon H4198 | <<locked>> | 84% | 52,576 psi | 87% | 2684 fps | 100% |
| Hodgdon H4895 | <<locked>> | 96% | 51,271 psi | 85% | 2795 fps | 97.9% |
| Hodgdon LEVERevolutionᴾ | <<locked>> | 100% | 52,605 psi | 87% | 2864 fps | 98.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,460 psi | 56% | 1663 fps | 100% |
| Hodgdon VARGET | <<locked>> | 98% | 53,127 psi | 88% | 2802 fps | 98.1% |
| IMR 3031 | <<locked>> | 98% | 52,547 psi | 87% | 2844 fps | 100% |
| IMR 4064ᴾ | <<locked>> | 100% | 51,387 psi | 85% | 2756 fps | 96.8% |
| IMR 4198 | <<locked>> | 90% | 53,214 psi | 88% | 2710 fps | 100% |
| IMR 4895ᴾ | <<locked>> | 100% | 52,257 psi | 87% | 2841 fps | 97.7% |
| IMR 8208 XBR | <<locked>> | 96% | 53,983 psi | 90% | 2799 fps | 98.8% |
| Lovex D073.4 | <<locked>> | 86% | 54,346 psi | 90% | 2802 fps | 99.7% |
| Lovex D073.5 | <<locked>> | 92% | 53,896 psi | 90% | 2792 fps | 99.3% |
| Lovex D073.6 | <<locked>> | 98% | 52,243 psi | 87% | 2815 fps | 99.6% |
| Lovex S053 | <<locked>> | 82% | 54,447 psi | 90% | 2615 fps | 100% |
| Lovex S060 | <<locked>> | 96% | 52,359 psi | 87% | 2726 fps | 97.5% |
| Lovex S062ᴾ | <<locked>> | 100% | 50,212 psi | 83% | 2756 fps | 98.4% |
| Norma 200 | <<locked>> | 86% | 52,388 psi | 87% | 2720 fps | 100% |
| Norma 201 | <<locked>> | 98% | 52,808 psi | 88% | 2782 fps | 98.7% |
| Norma 202 | <<locked>> | 98% | 53,011 psi | 88% | 2802 fps | 99.9% |
| Norma 203Bᴾ | <<locked>> | 100% | 50,038 psi | 83% | 2792 fps | 97.2% |
| Ramshot Big Gameᴾ | <<locked>> | 100% | 50,662 psi | 84% | 2812 fps | 96.9% |
| Ramshot Wild Boar | <<locked>> | 96% | 53,243 psi | 88% | 2822 fps | 97.6% |
| Ramshot X-Terminator | <<locked>> | 92% | 52,620 psi | 87% | 2753 fps | 97.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,547 psi | 56% | 1703 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 92% | 54,230 psi | 90% | 2799 fps | 99.6% |
| ReloadSwiss RS 52ᴾ | <<locked>> | 100% | 53,722 psi | 89% | 2917 fps | 97.3% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 44,802 psi | 74% | 2776 fps | 98.4% |
| Rottweil R 901 | <<locked>> | 96% | 54,099 psi | 90% | 2785 fps | 99.9% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 53,084 psi | 88% | 2776 fps | 98.7% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 43,004 psi | 71% | 2674 fps | 96.3% |
| Shooters World AR Plus | <<locked>> | 86% | 54,346 psi | 90% | 2802 fps | 99.7% |
| Shooters World Match Rifle | <<locked>> | 98% | 52,243 psi | 87% | 2815 fps | 99.6% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 50,212 psi | 83% | 2756 fps | 98.4% |
| Shooters World Tactical Rifle | <<locked>> | 88% | 51,010 psi | 85% | 2710 fps | 98% |
| SNPE Vectan BA6 1/2 | <<locked>> | 84% | 52,272 psi | 87% | 2434 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 88% | 53,519 psi | 89% | 2802 fps | 99.9% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 45,629 psi | 76% | 2733 fps | 95.8% |
| SNPE Vectan SP 3 | <<locked>> | 90% | 53,113 psi | 88% | 2756 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 98% | 52,620 psi | 87% | 2805 fps | 97.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 96% | 52,808 psi | 88% | 2707 fps | 99.8% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 48,196 psi | 80% | 2648 fps | 99.9% |
| Somchem S321 | <<locked>> | 92% | 51,837 psi | 86% | 2789 fps | 98.8% |
| Somchem S335 | <<locked>> | 98% | 54,317 psi | 90% | 2746 fps | 100% |
| Somchem S341 | <<locked>> | 96% | 51,735 psi | 86% | 2772 fps | 97.2% |
| Somchem S355ᴾ | <<locked>> | 100% | 44,411 psi | 74% | 2680 fps | 96.4% |
| Vihtavuori N120 | <<locked>> | 84% | 51,271 psi | 85% | 2621 fps | 100% |
| Vihtavuori N130 | <<locked>> | 92% | 52,547 psi | 87% | 2690 fps | 100% |
| Vihtavuori N133 | <<locked>> | 96% | 52,214 psi | 87% | 2700 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 50,937 psi | 85% | 2759 fps | 100% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 53,258 psi | 88% | 2776 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 42,743 psi | 71% | 2625 fps | 97.4% |
| Vihtavuori N530 | <<locked>> | 94% | 51,082 psi | 85% | 2746 fps | 98.4% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 51,488 psi | 86% | 2769 fps | 99.8% |
| Winchester 748 | <<locked>> | 96% | 52,895 psi | 88% | 2844 fps | 99.3% |
| Winchester StaBALL Match | <<locked>> | 98% | 51,953 psi | 86% | 2812 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% | 49,603 psi | 82% | 2615 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 33,634 psi | 56% | 2405 fps | 99.1% |
| Accurate 2200 | <<locked>> | 82% | 46,746 psi | 78% | 2690 fps | 95.3% |
| Accurate 2230 | <<locked>> | 82% | 46,441 psi | 77% | 2694 fps | 95.7% |
| Accurate 2460 | <<locked>> | 80% | 35,955 psi | 60% | 2477 fps | 97.3% |
| Accurate 2495 | <<locked>> | 80% | 26,092 psi | 43% | 2283 fps | 97.3% |
| Accurate 2520 | <<locked>> | 80% | 31,517 psi | 52% | 2415 fps | 95.4% |
| Accurate 4064 | <<locked>> | 84% | 28,123 psi | 47% | 2349 fps | 95.4% |
| Accurate LT-30 | <<locked>> | 80% | 42,206 psi | 70% | 2500 fps | 99.5% |
| Accurate LT-32 | <<locked>> | 80% | 42,569 psi | 71% | 2510 fps | 98.3% |
| ADI AR 2206H | <<locked>> | 90% | 42,192 psi | 70% | 2625 fps | 95.2% |
| ADI AR 2207 | <<locked>> | 80% | 45,469 psi | 76% | 2585 fps | 100% |
| ADI AR 2208 | <<locked>> | 98% | 45,919 psi | 76% | 2671 fps | 95.3% |
| ADI AR 2219 | <<locked>> | 80% | 40,379 psi | 67% | 2585 fps | 99.2% |
| ADI Benchmark 8208 | <<locked>> | 84% | 37,028 psi | 62% | 2493 fps | 95.1% |
| Alliant AR-Comp | <<locked>> | 80% | 30,792 psi | 51% | 2421 fps | 99.9% |
| Alliant Power Pro 1200-R | 37.9 gr | 82% | 39,479 psi | 66% | 2625 fps | 95.3% |
| Alliant Power Pro 2000-MR | <<locked>> | 98% | 50,575 psi | 84% | 2861 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 38,508 psi | 64% | 2582 fps | 95.3% |
| Alliant Reloder-10x | <<locked>> | 80% | 38,493 psi | 64% | 2516 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 96% | 45,107 psi | 75% | 2703 fps | 95.4% |
| Alliant Reloder-7 | <<locked>> | 80% | 46,586 psi | 77% | 2598 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 40,698 psi | 68% | 2493 fps | 99.5% |
| Baschieri & Pellagri 107 | <<locked>> | 94% | 47,398 psi | 79% | 2733 fps | 95.1% |
| Bofors RP3 | <<locked>> | 94% | 37,855 psi | 63% | 2582 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 35,012 psi | 58% | 2405 fps | 95.1% |
| Hodgdon BL-C2 | 41.4 gr | 84% | 34,534 psi | 57% | 2500 fps | 95.1% |
| Hodgdon CFE223 | <<locked>> | 90% | 47,079 psi | 78% | 2792 fps | 95.8% |
| Hodgdon H322 | <<locked>> | 80% | 36,825 psi | 61% | 2513 fps | 98.6% |
| Hodgdon H335 | <<locked>> | 80% | 37,333 psi | 62% | 2530 fps | 97.9% |
| Hodgdon H4198 | <<locked>> | 80% | 46,485 psi | 77% | 2589 fps | 99.6% |
| Hodgdon H4895 | <<locked>> | 88% | 39,900 psi | 66% | 2589 fps | 95.2% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 38,130 psi | 63% | 2595 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,787 psi | 41% | 1486 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 41,292 psi | 69% | 2598 fps | 95.5% |
| IMR 3031 | <<locked>> | 80% | 29,341 psi | 49% | 2392 fps | 97.3% |
| IMR 4064 | <<locked>> | 96% | 45,368 psi | 75% | 2654 fps | 95.4% |
| IMR 4198 | <<locked>> | 80% | 39,813 psi | 66% | 2500 fps | 100% |
| IMR 4895 | <<locked>> | 94% | 43,352 psi | 72% | 2687 fps | 95.7% |
| IMR 8208 XBR | <<locked>> | 84% | 37,028 psi | 62% | 2493 fps | 95.1% |
| Lovex D073.4 | <<locked>> | 80% | 43,918 psi | 73% | 2638 fps | 98.5% |
| Lovex D073.5 | <<locked>> | 80% | 35,839 psi | 60% | 2474 fps | 95.9% |
| Lovex D073.6 | <<locked>> | 84% | 32,358 psi | 54% | 2448 fps | 95.7% |
| Lovex S053 | <<locked>> | 80% | 51,561 psi | 86% | 2579 fps | 100% |
| Lovex S060 | <<locked>> | 90% | 43,758 psi | 73% | 2579 fps | 95.6% |
| Lovex S062 | <<locked>> | 90% | 36,883 psi | 61% | 2510 fps | 95.2% |
| Norma 200 | <<locked>> | 80% | 43,511 psi | 72% | 2585 fps | 100% |
| Norma 201 | <<locked>> | 86% | 36,448 psi | 61% | 2487 fps | 95.1% |
| Norma 202 | <<locked>> | 80% | 29,965 psi | 50% | 2356 fps | 95.5% |
| Norma 203B | <<locked>> | 94% | 41,611 psi | 69% | 2641 fps | 95.1% |
| Ramshot Big Game | <<locked>> | 96% | 44,614 psi | 74% | 2707 fps | 95.4% |
| Ramshot Wild Boar | <<locked>> | 90% | 43,772 psi | 73% | 2664 fps | 95.5% |
| Ramshot X-Terminator | <<locked>> | 86% | 43,265 psi | 72% | 2595 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,729 psi | 41% | 1522 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 36,695 psi | 61% | 2490 fps | 96.6% |
| ReloadSwiss RS 52 | <<locked>> | 94% | 44,179 psi | 73% | 2749 fps | 95% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 36,869 psi | 61% | 2602 fps | 95.9% |
| Rottweil R 901 | <<locked>> | 80% | 33,562 psi | 56% | 2402 fps | 96.5% |
| Rottweil R 902 | <<locked>> | 88% | 36,724 psi | 61% | 2484 fps | 95.1% |
| Rottweil R 903 | <<locked>> | 98% | 40,248 psi | 67% | 2621 fps | 95.6% |
| Shooters World AR Plus | <<locked>> | 80% | 43,918 psi | 73% | 2638 fps | 98.5% |
| Shooters World Match Rifle | <<locked>> | 84% | 32,358 psi | 54% | 2448 fps | 95.7% |
| Shooters World Precision | <<locked>> | 90% | 36,883 psi | 61% | 2510 fps | 95.2% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 38,972 psi | 65% | 2500 fps | 95.3% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 46,789 psi | 78% | 2362 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 40,886 psi | 68% | 2592 fps | 98.5% |
| SNPE Vectan SP 11 | <<locked>> | 98% | 43,004 psi | 71% | 2684 fps | 95.1% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 39,044 psi | 65% | 2523 fps | 99.5% |
| SNPE Vectan SP 9 | <<locked>> | 92% | 43,323 psi | 72% | 2644 fps | 95.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 32,242 psi | 54% | 2329 fps | 96.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 27,601 psi | 46% | 2234 fps | 95.6% |
| Somchem S321 | <<locked>> | 82% | 36,927 psi | 61% | 2520 fps | 95.5% |
| Somchem S335 | <<locked>> | 80% | 31,560 psi | 52% | 2333 fps | 97% |
| Somchem S341 | <<locked>> | 90% | 42,192 psi | 70% | 2612 fps | 95% |
| Somchem S355 | <<locked>> | 98% | 41,742 psi | 69% | 2631 fps | 95.7% |
| Vihtavuori N120 | <<locked>> | 80% | 45,527 psi | 76% | 2543 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 36,695 psi | 61% | 2428 fps | 99.8% |
| Vihtavuori N133 | <<locked>> | 80% | 32,039 psi | 53% | 2343 fps | 98.6% |
| Vihtavuori N135 | <<locked>> | 80% | 27,035 psi | 45% | 2297 fps | 97.5% |
| Vihtavuori N140 | <<locked>> | 80% | 28,355 psi | 47% | 2293 fps | 95.2% |
| Vihtavuori N150 | <<locked>> | 94% | 35,346 psi | 59% | 2477 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 84% | 37,028 psi | 62% | 2493 fps | 95.2% |
| Vihtavuori N540 | <<locked>> | 84% | 30,937 psi | 51% | 2379 fps | 95.7% |
| Winchester 748 | 40.6 gr | 84% | 35,346 psi | 59% | 2520 fps | 95.6% |
| Winchester StaBALL Match | <<locked>> | 90% | 39,798 psi | 66% | 2595 fps | 95.2% |
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 85 powders for .308 Win. Ackley Improved loaded with the .308 | 150gr | Norma Kalahari. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,917 fps; across all powders the maximum-charge window runs from 1,663 fps to 2,917 fps. Accurate 2495 gives the best case fill at 100 %, and 85 of the 85 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 1:12.5 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. Alliant Power Pro 1200-R, Winchester 748, Hodgdon BL-C2 rank at the top here: for .308 Win. Ackley Improved with the .308 | 150gr | Norma Kalahari 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.