Load Specifications
Load data in caliber .308 Win. Ackley Improved with .308 | 155gr | 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 Hodgdon CFE223, Alliant Power Pro 1200-R and Hodgdon H4895.
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% | 54,012 psi | 90% | 2631 fps | 100% |
| Accurate 2015 | <<locked>> | 94% | 53,185 psi | 88% | 2694 fps | 100% |
| Accurate 2200 | <<locked>> | 84% | 50,807 psi | 84% | 2720 fps | 96.7% |
| Accurate 2230 | <<locked>> | 84% | 51,053 psi | 85% | 2726 fps | 97.1% |
| Accurate 2460 | <<locked>> | 90% | 51,750 psi | 86% | 2713 fps | 99.8% |
| Accurate 2495ᴾ | <<locked>> | 100% | 51,996 psi | 86% | 2740 fps | 100% |
| Accurate 2520 | <<locked>> | 94% | 52,460 psi | 87% | 2762 fps | 99.8% |
| Accurate 4064ᴾ | <<locked>> | 100% | 48,196 psi | 80% | 2720 fps | 99.9% |
| Accurate LT-30 | <<locked>> | 86% | 51,605 psi | 86% | 2608 fps | 100% |
| Accurate LT-32 | <<locked>> | 86% | 52,054 psi | 86% | 2625 fps | 99.7% |
| ADI AR 2206H | <<locked>> | 96% | 52,170 psi | 87% | 2759 fps | 97.8% |
| ADI AR 2207 | <<locked>> | 84% | 52,243 psi | 87% | 2638 fps | 100% |
| ADI AR 2208ᴾ | <<locked>> | 100% | 49,951 psi | 83% | 2697 fps | 96.6% |
| ADI AR 2219 | <<locked>> | 88% | 54,114 psi | 90% | 2766 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 94% | 51,634 psi | 86% | 2720 fps | 98.7% |
| Alliant AR-Comp | <<locked>> | 96% | 53,084 psi | 88% | 2766 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 90% | 52,663 psi | 87% | 2822 fps | 98.5% |
| Alliant Power Pro 2000-MR | <<locked>> | 98% | 51,503 psi | 86% | 2835 fps | 96.5% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 48,109 psi | 80% | 2717 fps | 98% |
| Alliant Reloder-10x | <<locked>> | 90% | 53,505 psi | 89% | 2713 fps | 100% |
| Alliant Reloder-15ᴾ | <<locked>> | 100% | 52,359 psi | 87% | 2782 fps | 97.4% |
| Alliant Reloder-7 | <<locked>> | 84% | 53,606 psi | 89% | 2654 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 88% | 53,635 psi | 89% | 2651 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 96% | 51,517 psi | 86% | 2759 fps | 96.5% |
| Bofors RP3ᴾ | <<locked>> | 100% | 47,659 psi | 79% | 2720 fps | 98% |
| Hodgdon Benchmark | <<locked>> | 92% | 51,503 psi | 86% | 2674 fps | 99.1% |
| Hodgdon BL-C2 | <<locked>> | 96% | 52,968 psi | 88% | 2795 fps | 99.3% |
| Hodgdon CFE223 | <<locked>> | 92% | 51,372 psi | 85% | 2822 fps | 97.2% |
| Hodgdon H322 | <<locked>> | 90% | 52,605 psi | 87% | 2743 fps | 100% |
| Hodgdon H335 | <<locked>> | 90% | 53,519 psi | 89% | 2762 fps | 100% |
| Hodgdon H4198 | <<locked>> | 84% | 53,505 psi | 89% | 2654 fps | 100% |
| Hodgdon H4895 | <<locked>> | 96% | 52,518 psi | 87% | 2772 fps | 98.4% |
| Hodgdon LEVERevolutionᴾ | <<locked>> | 100% | 53,998 psi | 90% | 2844 fps | 98.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,547 psi | 56% | 1634 fps | 100% |
| Hodgdon VARGET | <<locked>> | 98% | 53,998 psi | 90% | 2772 fps | 98.5% |
| IMR 3031 | <<locked>> | 98% | 54,012 psi | 90% | 2818 fps | 100% |
| IMR 4064ᴾ | <<locked>> | 100% | 52,547 psi | 87% | 2730 fps | 97.4% |
| IMR 4198 | <<locked>> | 90% | 54,244 psi | 90% | 2674 fps | 100% |
| IMR 4895ᴾ | <<locked>> | 100% | 53,577 psi | 89% | 2815 fps | 98.2% |
| IMR 8208 XBR | <<locked>> | 94% | 51,634 psi | 86% | 2720 fps | 98.7% |
| Lovex D073.4 | <<locked>> | 84% | 51,793 psi | 86% | 2720 fps | 99.6% |
| Lovex D073.5 | <<locked>> | 90% | 51,561 psi | 86% | 2713 fps | 99.3% |
| Lovex D073.6 | <<locked>> | 98% | 53,737 psi | 89% | 2789 fps | 99.8% |
| Lovex S060 | <<locked>> | 96% | 53,345 psi | 89% | 2697 fps | 97.9% |
| Lovex S062ᴾ | <<locked>> | 100% | 51,416 psi | 85% | 2733 fps | 98.8% |
| Norma 200 | <<locked>> | 86% | 53,490 psi | 89% | 2687 fps | 100% |
| Norma 201 | <<locked>> | 98% | 53,983 psi | 90% | 2756 fps | 99.1% |
| Norma 202 | <<locked>> | 98% | 53,969 psi | 90% | 2769 fps | 100% |
| Norma 203Bᴾ | <<locked>> | 100% | 51,387 psi | 85% | 2772 fps | 97.8% |
| Ramshot Big Gameᴾ | <<locked>> | 100% | 52,011 psi | 86% | 2792 fps | 97.5% |
| Ramshot Wild Boar | <<locked>> | 94% | 50,966 psi | 85% | 2746 fps | 97.5% |
| Ramshot X-Terminator | <<locked>> | 92% | 53,737 psi | 89% | 2730 fps | 97.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,663 psi | 56% | 1673 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 90% | 51,764 psi | 86% | 2720 fps | 99.6% |
| ReloadSwiss RS 52 | <<locked>> | 98% | 51,822 psi | 86% | 2841 fps | 97.3% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 45,905 psi | 76% | 2762 fps | 99% |
| Rottweil R 901 | <<locked>> | 94% | 52,083 psi | 87% | 2710 fps | 99.8% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 54,375 psi | 90% | 2753 fps | 99.1% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 44,222 psi | 73% | 2654 fps | 97% |
| Shooters World AR Plus | <<locked>> | 84% | 51,793 psi | 86% | 2720 fps | 99.6% |
| Shooters World Match Rifle | <<locked>> | 98% | 53,737 psi | 89% | 2789 fps | 99.8% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 51,416 psi | 85% | 2733 fps | 98.8% |
| Shooters World Tactical Rifle | <<locked>> | 88% | 52,156 psi | 87% | 2687 fps | 98.5% |
| SNPE Vectan BA6 1/2 | <<locked>> | 84% | 52,881 psi | 88% | 2395 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 86% | 51,184 psi | 85% | 2723 fps | 99.8% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 46,804 psi | 78% | 2713 fps | 96.6% |
| SNPE Vectan SP 3 | <<locked>> | 88% | 51,242 psi | 85% | 2684 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 96% | 53,722 psi | 89% | 2746 fps | 95.9% |
| SNPE Vectan SP 9 | <<locked>> | 98% | 53,925 psi | 90% | 2779 fps | 98% |
| SNPE Vectan Tubal 3000 | <<locked>> | 96% | 53,925 psi | 90% | 2677 fps | 99.9% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 49,356 psi | 82% | 2621 fps | 100% |
| Somchem S321 | <<locked>> | 92% | 52,750 psi | 88% | 2759 fps | 99.1% |
| Somchem S335 | <<locked>> | 96% | 52,286 psi | 87% | 2674 fps | 100% |
| Somchem S341 | <<locked>> | 96% | 52,765 psi | 88% | 2746 fps | 97.7% |
| Somchem S355ᴾ | <<locked>> | 100% | 45,585 psi | 76% | 2661 fps | 97.1% |
| Vihtavuori N120 | <<locked>> | 84% | 52,214 psi | 87% | 2589 fps | 100% |
| Vihtavuori N130 | <<locked>> | 92% | 53,577 psi | 89% | 2657 fps | 100% |
| Vihtavuori N133 | <<locked>> | 96% | 53,345 psi | 89% | 2671 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 52,315 psi | 87% | 2733 fps | 100% |
| Vihtavuori N140 | <<locked>> | 98% | 51,300 psi | 85% | 2703 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 43,947 psi | 73% | 2605 fps | 98% |
| Vihtavuori N530 | <<locked>> | 94% | 52,301 psi | 87% | 2723 fps | 98.8% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 52,808 psi | 88% | 2743 fps | 99.9% |
| Winchester 748 | <<locked>> | 96% | 53,940 psi | 90% | 2815 fps | 99.6% |
| Winchester StaBALL Match | <<locked>> | 98% | 52,997 psi | 88% | 2782 fps | 98.4% |
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% | 50,444 psi | 84% | 2582 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 34,374 psi | 57% | 2379 fps | 99.4% |
| Accurate 2200 | <<locked>> | 80% | 44,744 psi | 74% | 2615 fps | 95.2% |
| Accurate 2230 | <<locked>> | 80% | 44,295 psi | 74% | 2612 fps | 95.6% |
| Accurate 2460 | <<locked>> | 80% | 36,782 psi | 61% | 2454 fps | 97.8% |
| Accurate 2495 | <<locked>> | 80% | 26,803 psi | 45% | 2264 fps | 97.9% |
| Accurate 2520 | <<locked>> | 80% | 32,343 psi | 54% | 2395 fps | 96.1% |
| Accurate 4064 | <<locked>> | 82% | 27,108 psi | 45% | 2283 fps | 95.3% |
| Accurate LT-30 | <<locked>> | 80% | 42,917 psi | 71% | 2470 fps | 99.7% |
| Accurate LT-32 | <<locked>> | 80% | 43,236 psi | 72% | 2484 fps | 98.7% |
| ADI AR 2206H | <<locked>> | 88% | 40,625 psi | 67% | 2556 fps | 95.2% |
| ADI AR 2207 | <<locked>> | 80% | 46,296 psi | 77% | 2552 fps | 100% |
| ADI AR 2208 | <<locked>> | 96% | 44,193 psi | 73% | 2598 fps | 95.2% |
| ADI AR 2219 | <<locked>> | 80% | 41,321 psi | 69% | 2562 fps | 99.5% |
| ADI Benchmark 8208 | <<locked>> | 82% | 35,520 psi | 59% | 2425 fps | 95% |
| Alliant AR-Comp | <<locked>> | 80% | 31,488 psi | 52% | 2398 fps | 100% |
| Alliant Power Pro 1200-R | 36.8 gr | 80% | 37,884 psi | 63% | 2549 fps | 95.1% |
| Alliant Power Pro 2000-MR | <<locked>> | 96% | 48,080 psi | 80% | 2776 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 37,173 psi | 62% | 2513 fps | 95.3% |
| Alliant Reloder-10x | <<locked>> | 80% | 39,247 psi | 65% | 2487 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 43,250 psi | 72% | 2628 fps | 95.3% |
| Alliant Reloder-7 | <<locked>> | 80% | 47,413 psi | 79% | 2566 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 41,495 psi | 69% | 2467 fps | 99.7% |
| Baschieri & Pellagri 107 | <<locked>> | 92% | 45,121 psi | 75% | 2651 fps | 95% |
| Bofors RP3 | <<locked>> | 92% | 36,506 psi | 61% | 2513 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 35,694 psi | 59% | 2382 fps | 95.8% |
| Hodgdon BL-C2 | <<locked>> | 84% | 35,433 psi | 59% | 2480 fps | 95.8% |
| Hodgdon CFE223 | 44.1 gr | 88% | 44,802 psi | 74% | 2707 fps | 95.6% |
| Hodgdon H322 | <<locked>> | 80% | 37,869 psi | 63% | 2497 fps | 99% |
| Hodgdon H335 | <<locked>> | 80% | 38,189 psi | 63% | 2507 fps | 98.4% |
| Hodgdon H4198 | <<locked>> | 80% | 47,239 psi | 78% | 2559 fps | 99.8% |
| Hodgdon H4895 | 39.6 gr | 86% | 38,377 psi | 64% | 2516 fps | 95.2% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 38,783 psi | 64% | 2572 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,816 psi | 41% | 1460 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 39,392 psi | 65% | 2520 fps | 95.3% |
| IMR 3031 | <<locked>> | 80% | 30,197 psi | 50% | 2379 fps | 97.9% |
| IMR 4064 | <<locked>> | 94% | 43,627 psi | 72% | 2582 fps | 95.4% |
| IMR 4198 | <<locked>> | 80% | 40,495 psi | 67% | 2467 fps | 100% |
| IMR 4895 | <<locked>> | 92% | 41,524 psi | 69% | 2608 fps | 95.6% |
| IMR 8208 XBR | <<locked>> | 82% | 35,520 psi | 59% | 2425 fps | 95% |
| Lovex D073.4 | <<locked>> | 80% | 44,918 psi | 75% | 2612 fps | 98.9% |
| Lovex D073.5 | <<locked>> | 80% | 36,695 psi | 61% | 2454 fps | 96.6% |
| Lovex D073.6 | <<locked>> | 82% | 31,154 psi | 52% | 2379 fps | 95.6% |
| Lovex S060 | <<locked>> | 88% | 42,003 psi | 70% | 2507 fps | 95.5% |
| Lovex S062 | <<locked>> | 88% | 35,491 psi | 59% | 2441 fps | 95.2% |
| Norma 200 | <<locked>> | 80% | 44,425 psi | 74% | 2552 fps | 100% |
| Norma 201 | <<locked>> | 84% | 35,041 psi | 58% | 2415 fps | 95% |
| Norma 202 | <<locked>> | 80% | 30,676 psi | 51% | 2336 fps | 96.2% |
| Norma 203B | <<locked>> | 92% | 39,827 psi | 66% | 2566 fps | 95% |
| Ramshot Big Game | <<locked>> | 94% | 42,801 psi | 71% | 2631 fps | 95.4% |
| Ramshot Wild Boar | <<locked>> | 88% | 41,930 psi | 70% | 2589 fps | 95.4% |
| Ramshot X-Terminator | <<locked>> | 84% | 41,365 psi | 69% | 2520 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,772 psi | 41% | 1493 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 37,507 psi | 62% | 2467 fps | 97.2% |
| ReloadSwiss RS 52 | <<locked>> | 94% | 45,295 psi | 75% | 2730 fps | 95.8% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 35,360 psi | 59% | 2530 fps | 95.8% |
| Rottweil R 901 | <<locked>> | 80% | 34,461 psi | 57% | 2385 fps | 97.1% |
| Rottweil R 902 | <<locked>> | 86% | 35,288 psi | 59% | 2411 fps | 95% |
| Rottweil R 903 | <<locked>> | 96% | 38,885 psi | 65% | 2552 fps | 95.6% |
| Shooters World AR Plus | <<locked>> | 80% | 44,918 psi | 75% | 2612 fps | 98.9% |
| Shooters World Match Rifle | <<locked>> | 82% | 31,154 psi | 52% | 2379 fps | 95.6% |
| Shooters World Precision | <<locked>> | 88% | 35,491 psi | 59% | 2441 fps | 95.2% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 39,769 psi | 66% | 2477 fps | 95.9% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 47,703 psi | 79% | 2329 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 41,771 psi | 69% | 2566 fps | 98.9% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 41,220 psi | 68% | 2608 fps | 95% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 39,856 psi | 66% | 2497 fps | 99.7% |
| SNPE Vectan SP 7 | <<locked>> | 94% | 50,024 psi | 83% | 2694 fps | 95.1% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 41,756 psi | 69% | 2575 fps | 95.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 32,851 psi | 55% | 2306 fps | 96.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 26,585 psi | 44% | 2172 fps | 95.6% |
| Somchem S321 | <<locked>> | 80% | 35,302 psi | 59% | 2441 fps | 95.3% |
| Somchem S335 | <<locked>> | 80% | 32,227 psi | 54% | 2310 fps | 97.6% |
| Somchem S341 | <<locked>> | 90% | 43,265 psi | 72% | 2589 fps | 95.7% |
| Somchem S355 | <<locked>> | 96% | 40,248 psi | 67% | 2562 fps | 95.7% |
| Vihtavuori N120 | <<locked>> | 80% | 46,340 psi | 77% | 2507 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 37,362 psi | 62% | 2402 fps | 99.9% |
| Vihtavuori N133 | <<locked>> | 80% | 32,677 psi | 54% | 2316 fps | 99% |
| Vihtavuori N135 | <<locked>> | 80% | 27,702 psi | 46% | 2277 fps | 98.1% |
| Vihtavuori N140 | <<locked>> | 80% | 28,964 psi | 48% | 2274 fps | 95.9% |
| Vihtavuori N150 | <<locked>> | 92% | 34,055 psi | 57% | 2411 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 82% | 35,273 psi | 59% | 2415 fps | 95% |
| Vihtavuori N540 | <<locked>> | 82% | 29,559 psi | 49% | 2306 fps | 95.5% |
| Winchester 748 | <<locked>> | 82% | 33,982 psi | 56% | 2448 fps | 95.5% |
| Winchester StaBALL Match | <<locked>> | 88% | 38,101 psi | 63% | 2523 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 85 powders for .308 Win. Ackley Improved loaded with the .308 | 155gr | Norma Kalahari. Hodgdon LEVERevolution delivers the highest muzzle velocity at 2,844 fps; across all powders the maximum-charge window runs from 1,634 fps to 2,844 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 155.0 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. Hodgdon CFE223, Alliant Power Pro 1200-R, Hodgdon H4895 rank at the top here: for .308 Win. Ackley Improved with the .308 | 155gr | 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.