Load Specifications
Load data in caliber .308 Win. Ackley Improved with .308 | 150gr | Impala LW CFN bullet and 84 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 52, 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 2015 | <<locked>> | 92% | 53,098 psi | 88% | 2723 fps | 100% |
| Accurate 2200 | <<locked>> | 84% | 53,258 psi | 88% | 2789 fps | 96.8% |
| Accurate 2230 | <<locked>> | 84% | 53,911 psi | 90% | 2799 fps | 97.3% |
| Accurate 2460 | <<locked>> | 88% | 51,605 psi | 86% | 2733 fps | 99.7% |
| Accurate 2495 | <<locked>> | 98% | 52,968 psi | 88% | 2776 fps | 100% |
| Accurate 2520 | <<locked>> | 92% | 52,214 psi | 87% | 2785 fps | 99.6% |
| Accurate 4064ᴾ | <<locked>> | 100% | 52,185 psi | 87% | 2802 fps | 100% |
| Accurate LT-30 | <<locked>> | 86% | 53,737 psi | 89% | 2671 fps | 100% |
| Accurate LT-32 | <<locked>> | 86% | 54,114 psi | 90% | 2687 fps | 99.7% |
| ADI AR 2206H | <<locked>> | 94% | 51,663 psi | 86% | 2776 fps | 97.4% |
| ADI AR 2207 | <<locked>> | 82% | 51,924 psi | 86% | 2661 fps | 100% |
| ADI AR 2208ᴾ | <<locked>> | 100% | 52,112 psi | 87% | 2762 fps | 96.7% |
| ADI AR 2219 | <<locked>> | 86% | 52,881 psi | 88% | 2779 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 94% | 54,346 psi | 90% | 2792 fps | 98.8% |
| Alliant AR-Comp | <<locked>> | 94% | 52,402 psi | 87% | 2789 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 88% | 52,083 psi | 87% | 2841 fps | 98.2% |
| Alliant Power Pro 2000-MR | <<locked>> | 98% | 53,896 psi | 90% | 2904 fps | 96.6% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 50,647 psi | 84% | 2785 fps | 98.1% |
| Alliant Reloder-10x | <<locked>> | 88% | 53,243 psi | 88% | 2736 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 98% | 51,822 psi | 86% | 2802 fps | 96.9% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 45,194 psi | 75% | 2753 fps | 96% |
| Alliant Reloder-7 | <<locked>> | 82% | 53,011 psi | 88% | 2674 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 86% | 52,359 psi | 87% | 2667 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 96% | 54,012 psi | 90% | 2828 fps | 96.6% |
| Bofors RP3ᴾ | <<locked>> | 100% | 51,111 psi | 85% | 2802 fps | 98.3% |
| Hodgdon Benchmark | <<locked>> | 92% | 53,795 psi | 89% | 2736 fps | 99.1% |
| Hodgdon BL-C2 | <<locked>> | 94% | 52,460 psi | 87% | 2818 fps | 99.1% |
| Hodgdon CFE223 | <<locked>> | 92% | 53,969 psi | 90% | 2894 fps | 97.3% |
| Hodgdon H322 | <<locked>> | 88% | 51,547 psi | 86% | 2759 fps | 100% |
| Hodgdon H335 | <<locked>> | 88% | 52,692 psi | 88% | 2782 fps | 99.9% |
| Hodgdon H4198 | <<locked>> | 82% | 52,504 psi | 87% | 2671 fps | 100% |
| Hodgdon H4895 | <<locked>> | 94% | 52,069 psi | 87% | 2792 fps | 98% |
| Hodgdon LEVERevolution | <<locked>> | 98% | 53,011 psi | 88% | 2858 fps | 98.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,301 psi | 57% | 1670 fps | 100% |
| Hodgdon VARGET | <<locked>> | 96% | 52,997 psi | 88% | 2785 fps | 98.1% |
| IMR 3031 | <<locked>> | 96% | 53,200 psi | 88% | 2838 fps | 100% |
| IMR 4064 | <<locked>> | 98% | 51,793 psi | 86% | 2746 fps | 96.9% |
| IMR 4198 | <<locked>> | 88% | 53,171 psi | 88% | 2694 fps | 100% |
| IMR 4895 | <<locked>> | 98% | 52,939 psi | 88% | 2835 fps | 97.8% |
| IMR 8208 XBR | <<locked>> | 94% | 54,346 psi | 90% | 2792 fps | 98.8% |
| Lovex D073.4 | <<locked>> | 82% | 51,401 psi | 85% | 2740 fps | 99.4% |
| Lovex D073.5 | <<locked>> | 88% | 51,735 psi | 86% | 2740 fps | 99.1% |
| Lovex D073.6 | <<locked>> | 96% | 53,432 psi | 89% | 2815 fps | 99.7% |
| Lovex S060 | <<locked>> | 94% | 52,591 psi | 87% | 2717 fps | 97.5% |
| Lovex S062ᴾ | <<locked>> | 100% | 54,244 psi | 90% | 2802 fps | 98.9% |
| Norma 200 | <<locked>> | 84% | 53,940 psi | 90% | 2717 fps | 100% |
| Norma 201 | <<locked>> | 96% | 53,867 psi | 89% | 2782 fps | 98.8% |
| Norma 202 | <<locked>> | 96% | 53,751 psi | 89% | 2795 fps | 99.9% |
| Norma 203Bᴾ | <<locked>> | 100% | 54,346 psi | 90% | 2844 fps | 97.9% |
| Ramshot Big Game | <<locked>> | 98% | 51,198 psi | 85% | 2808 fps | 97% |
| Ramshot Wild Boar | <<locked>> | 94% | 53,679 psi | 89% | 2815 fps | 97.7% |
| Ramshot X-Terminator | <<locked>> | 90% | 52,736 psi | 88% | 2740 fps | 97.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,563 psi | 57% | 1709 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 90% | 54,215 psi | 90% | 2785 fps | 99.6% |
| ReloadSwiss RS 52 | <<locked>> | 98% | 54,215 psi | 90% | 2907 fps | 97.3% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 48,182 psi | 80% | 2828 fps | 99.1% |
| Rottweil R 901 | <<locked>> | 92% | 52,707 psi | 88% | 2743 fps | 99.8% |
| Rottweil R 902 | <<locked>> | 98% | 54,157 psi | 90% | 2776 fps | 98.8% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 47,340 psi | 79% | 2730 fps | 97.3% |
| Shooters World AR Plus | <<locked>> | 82% | 51,401 psi | 85% | 2740 fps | 99.4% |
| Shooters World Match Rifle | <<locked>> | 96% | 53,432 psi | 89% | 2815 fps | 99.7% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 54,244 psi | 90% | 2802 fps | 98.9% |
| Shooters World Tactical Rifle | <<locked>> | 86% | 51,198 psi | 85% | 2700 fps | 98.1% |
| SNPE Vectan BA6 1/2 | <<locked>> | 82% | 52,185 psi | 87% | 2415 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 86% | 53,664 psi | 89% | 2789 fps | 99.9% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 49,400 psi | 82% | 2785 fps | 96.7% |
| SNPE Vectan SP 3 | <<locked>> | 88% | 53,345 psi | 89% | 2743 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 96% | 53,084 psi | 88% | 2795 fps | 97.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 94% | 53,214 psi | 88% | 2697 fps | 99.8% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 51,721 psi | 86% | 2684 fps | 100% |
| Somchem S321 | <<locked>> | 90% | 52,257 psi | 87% | 2779 fps | 98.8% |
| Somchem S335 | <<locked>> | 94% | 52,083 psi | 87% | 2697 fps | 100% |
| Somchem S341 | <<locked>> | 94% | 51,880 psi | 86% | 2759 fps | 97.2% |
| Somchem S355ᴾ | <<locked>> | 100% | 48,414 psi | 80% | 2733 fps | 97.3% |
| Vihtavuori N120 | <<locked>> | 82% | 51,735 psi | 86% | 2612 fps | 100% |
| Vihtavuori N130 | <<locked>> | 90% | 52,982 psi | 88% | 2680 fps | 100% |
| Vihtavuori N133 | <<locked>> | 94% | 52,547 psi | 87% | 2690 fps | 100% |
| Vihtavuori N135 | <<locked>> | 98% | 51,909 psi | 86% | 2756 fps | 100% |
| Vihtavuori N140 | <<locked>> | 98% | 53,737 psi | 89% | 2769 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 46,528 psi | 77% | 2674 fps | 98.1% |
| Vihtavuori N530 | <<locked>> | 92% | 51,634 psi | 86% | 2743 fps | 98.5% |
| Vihtavuori N540 | <<locked>> | 98% | 52,185 psi | 87% | 2766 fps | 99.8% |
| Winchester 748 | <<locked>> | 94% | 53,069 psi | 88% | 2831 fps | 99.3% |
| Winchester StaBALL Match | <<locked>> | 96% | 52,141 psi | 87% | 2802 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 2015 | <<locked>> | 80% | 37,405 psi | 62% | 2457 fps | 99.6% |
| Accurate 2200 | <<locked>> | 80% | 46,934 psi | 78% | 2677 fps | 95.4% |
| Accurate 2230 | <<locked>> | 80% | 47,239 psi | 78% | 2687 fps | 95.9% |
| Accurate 2460 | <<locked>> | 80% | 40,234 psi | 67% | 2539 fps | 98.3% |
| Accurate 2495 | <<locked>> | 80% | 30,864 psi | 51% | 2369 fps | 98.8% |
| Accurate 2520 | <<locked>> | 80% | 35,563 psi | 59% | 2480 fps | 96.7% |
| Accurate 4064 | <<locked>> | 80% | 29,211 psi | 49% | 2343 fps | 95.8% |
| Accurate LT-30 | <<locked>> | 80% | 45,179 psi | 75% | 2536 fps | 99.8% |
| Accurate LT-32 | <<locked>> | 80% | 45,484 psi | 76% | 2546 fps | 98.8% |
| ADI AR 2206H | <<locked>> | 88% | 43,308 psi | 72% | 2628 fps | 95.5% |
| ADI AR 2207 | <<locked>> | 80% | 48,892 psi | 81% | 2618 fps | 100% |
| ADI AR 2208 | <<locked>> | 96% | 46,514 psi | 77% | 2667 fps | 95.4% |
| ADI AR 2219 | <<locked>> | 80% | 43,888 psi | 73% | 2635 fps | 99.6% |
| ADI Benchmark 8208 | <<locked>> | 82% | 38,159 psi | 63% | 2497 fps | 95.5% |
| Alliant AR-Comp | <<locked>> | 80% | 34,098 psi | 57% | 2474 fps | 100% |
| Alliant Power Pro 1200-R | 37.2 gr | 80% | 40,466 psi | 67% | 2625 fps | 95.5% |
| Alliant Power Pro 2000-MR | <<locked>> | 96% | 50,546 psi | 84% | 2848 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 37,652 psi | 63% | 2543 fps | 95% |
| Alliant Reloder-10x | <<locked>> | 80% | 42,119 psi | 70% | 2559 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 46,180 psi | 77% | 2703 fps | 95.7% |
| Alliant Reloder-17 | <<locked>> | 98% | 42,714 psi | 71% | 2703 fps | 95.2% |
| Alliant Reloder-7 | <<locked>> | 80% | 50,009 psi | 83% | 2631 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 43,656 psi | 73% | 2530 fps | 99.8% |
| Baschieri & Pellagri 107 | <<locked>> | 92% | 47,703 psi | 79% | 2723 fps | 95.2% |
| Bofors RP3 | <<locked>> | 90% | 37,391 psi | 62% | 2549 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 38,276 psi | 64% | 2457 fps | 96.2% |
| Hodgdon BL-C2 | <<locked>> | 82% | 35,897 psi | 60% | 2510 fps | 95.5% |
| Hodgdon CFE223 | <<locked>> | 86% | 44,309 psi | 74% | 2720 fps | 95% |
| Hodgdon H322 | <<locked>> | 80% | 40,219 psi | 67% | 2566 fps | 99.2% |
| Hodgdon H335 | <<locked>> | 80% | 40,843 psi | 68% | 2579 fps | 98.6% |
| Hodgdon H4198 | <<locked>> | 80% | 49,458 psi | 82% | 2625 fps | 99.8% |
| Hodgdon H4895 | <<locked>> | 86% | 40,872 psi | 68% | 2589 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 39,015 psi | 65% | 2595 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,469 psi | 42% | 1490 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 41,829 psi | 69% | 2592 fps | 95.7% |
| IMR 3031 | <<locked>> | 80% | 32,837 psi | 55% | 2457 fps | 98.4% |
| IMR 4064 | <<locked>> | 94% | 46,093 psi | 77% | 2651 fps | 95.6% |
| IMR 4198 | <<locked>> | 80% | 42,598 psi | 71% | 2530 fps | 100% |
| IMR 4895 | <<locked>> | 90% | 41,785 psi | 69% | 2635 fps | 95.2% |
| IMR 8208 XBR | <<locked>> | 82% | 38,159 psi | 63% | 2497 fps | 95.5% |
| Lovex D073.4 | <<locked>> | 80% | 48,182 psi | 80% | 2687 fps | 99.1% |
| Lovex D073.5 | <<locked>> | 80% | 40,045 psi | 67% | 2536 fps | 97.1% |
| Lovex D073.6 | <<locked>> | 80% | 32,256 psi | 54% | 2415 fps | 95.6% |
| Lovex S060 | <<locked>> | 86% | 41,756 psi | 69% | 2523 fps | 95% |
| Lovex S062 | <<locked>> | 88% | 38,450 psi | 64% | 2520 fps | 95.7% |
| Norma 200 | <<locked>> | 80% | 47,790 psi | 79% | 2628 fps | 100% |
| Norma 201 | <<locked>> | 84% | 38,305 psi | 64% | 2500 fps | 95.6% |
| Norma 202 | <<locked>> | 80% | 33,359 psi | 55% | 2415 fps | 96.8% |
| Norma 203B | <<locked>> | 92% | 42,583 psi | 71% | 2641 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 94% | 45,078 psi | 75% | 2700 fps | 95.6% |
| Ramshot Wild Boar | <<locked>> | 88% | 44,353 psi | 74% | 2657 fps | 95.7% |
| Ramshot X-Terminator | <<locked>> | 84% | 43,903 psi | 73% | 2589 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,802 psi | 43% | 1529 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 40,118 psi | 67% | 2539 fps | 97.5% |
| ReloadSwiss RS 52 | 44.2 gr | 92% | 44,802 psi | 74% | 2743 fps | 95.2% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 35,505 psi | 59% | 2549 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 37,971 psi | 63% | 2470 fps | 97.7% |
| Rottweil R 902 | <<locked>> | 86% | 38,537 psi | 64% | 2497 fps | 95.7% |
| Rottweil R 903 | <<locked>> | 94% | 39,581 psi | 66% | 2585 fps | 95.3% |
| Shooters World AR Plus | <<locked>> | 80% | 48,182 psi | 80% | 2687 fps | 99.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 32,256 psi | 54% | 2415 fps | 95.6% |
| Shooters World Precision | <<locked>> | 88% | 38,450 psi | 64% | 2520 fps | 95.7% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 42,380 psi | 70% | 2546 fps | 96.2% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 49,821 psi | 83% | 2385 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 44,483 psi | 74% | 2638 fps | 99.1% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 43,874 psi | 73% | 2684 fps | 95.3% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 42,177 psi | 70% | 2562 fps | 99.8% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 44,208 psi | 73% | 2644 fps | 95.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 35,404 psi | 59% | 2379 fps | 97.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 28,993 psi | 48% | 2244 fps | 96.3% |
| Somchem S321 | <<locked>> | 80% | 38,130 psi | 63% | 2523 fps | 95.9% |
| Somchem S335 | <<locked>> | 80% | 35,027 psi | 58% | 2388 fps | 98% |
| Somchem S341 | <<locked>> | 88% | 42,917 psi | 71% | 2608 fps | 95.2% |
| Somchem S355 | <<locked>> | 94% | 40,770 psi | 68% | 2592 fps | 95.4% |
| Vihtavuori N120 | <<locked>> | 80% | 48,776 psi | 81% | 2569 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 39,943 psi | 66% | 2470 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 35,143 psi | 58% | 2388 fps | 99.3% |
| Vihtavuori N135 | <<locked>> | 80% | 30,545 psi | 51% | 2359 fps | 98.6% |
| Vihtavuori N140 | <<locked>> | 80% | 31,531 psi | 52% | 2352 fps | 96.5% |
| Vihtavuori N150 | <<locked>> | 92% | 36,753 psi | 61% | 2487 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 82% | 37,956 psi | 63% | 2490 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 80% | 30,530 psi | 51% | 2343 fps | 95.5% |
| Winchester 748 | 39 gr | 80% | 34,330 psi | 57% | 2470 fps | 95.2% |
| Winchester StaBALL Match | <<locked>> | 88% | 40,625 psi | 67% | 2595 fps | 95.4% |
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 102 powders for .308 Win. Ackley Improved loaded with the .308 | 150gr | Impala LW CFN. ReloadSwiss RS 52 delivers the highest muzzle velocity at 2,907 fps; across all powders the maximum-charge window runs from 1,670 fps to 2,907 fps. Accurate 4064 gives the best case fill at 100 %, and 102 of the 102 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (415 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.308" calls for a 1:13.0 twist; slower twists will usually not stabilise this weight. Accurate 4064, Accurate 4350, 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. ReloadSwiss RS 52, Alliant Power Pro 1200-R, Winchester 748 rank at the top here: for .308 Win. Ackley Improved with the .308 | 150gr | Impala LW CFN 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.