Load Specifications
Load data in caliber .308 Win. Ackley Improved with .308 | 150gr | Impala LWH CHP 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 IMR 3031.
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% | 52,649 psi | 87% | 2713 fps | 100% |
| Accurate 2200 | <<locked>> | 84% | 53,069 psi | 88% | 2782 fps | 96.7% |
| Accurate 2230 | <<locked>> | 84% | 53,780 psi | 89% | 2792 fps | 97.2% |
| Accurate 2460 | <<locked>> | 88% | 51,445 psi | 85% | 2730 fps | 99.7% |
| Accurate 2495 | <<locked>> | 98% | 52,794 psi | 88% | 2772 fps | 100% |
| Accurate 2520 | <<locked>> | 92% | 51,764 psi | 86% | 2776 fps | 99.6% |
| Accurate 4064ᴾ | <<locked>> | 100% | 52,040 psi | 86% | 2799 fps | 99.9% |
| Accurate LT-30 | <<locked>> | 86% | 53,200 psi | 88% | 2661 fps | 100% |
| Accurate LT-32 | <<locked>> | 86% | 53,621 psi | 89% | 2677 fps | 99.7% |
| ADI AR 2206H | <<locked>> | 96% | 54,244 psi | 90% | 2815 fps | 97.8% |
| ADI AR 2207 | <<locked>> | 82% | 51,677 psi | 86% | 2654 fps | 100% |
| ADI AR 2208ᴾ | <<locked>> | 100% | 51,735 psi | 86% | 2749 fps | 96.5% |
| ADI AR 2219 | <<locked>> | 86% | 52,663 psi | 87% | 2776 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 94% | 53,853 psi | 89% | 2782 fps | 98.7% |
| Alliant AR-Comp | <<locked>> | 94% | 52,170 psi | 87% | 2782 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 88% | 51,648 psi | 86% | 2831 fps | 98% |
| Alliant Power Pro 2000-MR | <<locked>> | 98% | 53,563 psi | 89% | 2894 fps | 96.4% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 51,706 psi | 86% | 2782 fps | 97.9% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 50,198 psi | 83% | 2772 fps | 98% |
| Alliant Reloder-10x | <<locked>> | 88% | 52,678 psi | 88% | 2726 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 98% | 51,648 psi | 86% | 2795 fps | 96.8% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 45,150 psi | 75% | 2749 fps | 95.9% |
| Alliant Reloder-7 | <<locked>> | 82% | 52,808 psi | 88% | 2667 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 86% | 51,967 psi | 86% | 2657 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 96% | 53,650 psi | 89% | 2818 fps | 96.5% |
| Bofors RP3ᴾ | <<locked>> | 100% | 50,647 psi | 84% | 2792 fps | 98.2% |
| Hodgdon Benchmark | <<locked>> | 92% | 53,359 psi | 89% | 2726 fps | 99.1% |
| Hodgdon BL-C2 | <<locked>> | 94% | 52,330 psi | 87% | 2812 fps | 99% |
| Hodgdon CFE223 | <<locked>> | 92% | 53,534 psi | 89% | 2884 fps | 97.2% |
| Hodgdon H322 | <<locked>> | 90% | 54,447 psi | 90% | 2799 fps | 100% |
| Hodgdon H335 | <<locked>> | 88% | 52,243 psi | 87% | 2776 fps | 99.8% |
| Hodgdon H4198 | <<locked>> | 82% | 52,257 psi | 87% | 2664 fps | 99.9% |
| Hodgdon H4895 | <<locked>> | 94% | 51,503 psi | 86% | 2782 fps | 97.9% |
| Hodgdon LEVERevolution | <<locked>> | 98% | 52,634 psi | 87% | 2848 fps | 98.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,243 psi | 57% | 1667 fps | 100% |
| Hodgdon VARGET | <<locked>> | 96% | 52,823 psi | 88% | 2782 fps | 98% |
| IMR 3031 | <<locked>> | 96% | 52,678 psi | 88% | 2828 fps | 100% |
| IMR 4064ᴾ | <<locked>> | 100% | 54,433 psi | 90% | 2785 fps | 97.3% |
| IMR 4198 | <<locked>> | 88% | 52,953 psi | 88% | 2687 fps | 100% |
| IMR 4895 | <<locked>> | 98% | 52,895 psi | 88% | 2831 fps | 97.7% |
| IMR 8208 XBR | <<locked>> | 94% | 53,853 psi | 89% | 2782 fps | 98.7% |
| Lovex D073.4 | <<locked>> | 82% | 51,242 psi | 85% | 2736 fps | 99.4% |
| Lovex D073.5 | <<locked>> | 88% | 51,256 psi | 85% | 2730 fps | 99% |
| Lovex D073.6 | <<locked>> | 96% | 52,852 psi | 88% | 2805 fps | 99.6% |
| Lovex S060 | <<locked>> | 94% | 52,112 psi | 87% | 2703 fps | 97.4% |
| Lovex S062ᴾ | <<locked>> | 100% | 53,766 psi | 89% | 2792 fps | 98.8% |
| Norma 200 | <<locked>> | 84% | 53,432 psi | 89% | 2707 fps | 100% |
| Norma 201 | <<locked>> | 96% | 53,737 psi | 89% | 2776 fps | 98.8% |
| Norma 202 | <<locked>> | 96% | 53,229 psi | 88% | 2785 fps | 99.9% |
| Norma 203Bᴾ | <<locked>> | 100% | 53,838 psi | 89% | 2835 fps | 97.8% |
| Ramshot Big Gameᴾ | <<locked>> | 100% | 54,114 psi | 90% | 2851 fps | 97.5% |
| Ramshot Wild Boar | <<locked>> | 94% | 53,272 psi | 89% | 2805 fps | 97.6% |
| Ramshot X-Terminator | <<locked>> | 90% | 52,576 psi | 87% | 2736 fps | 97.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,490 psi | 57% | 1706 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 90% | 54,114 psi | 90% | 2782 fps | 99.6% |
| ReloadSwiss RS 52 | <<locked>> | 98% | 53,708 psi | 89% | 2897 fps | 97.2% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 48,138 psi | 80% | 2825 fps | 99% |
| Rottweil R 901 | <<locked>> | 92% | 52,562 psi | 87% | 2736 fps | 99.7% |
| Rottweil R 902 | <<locked>> | 98% | 53,693 psi | 89% | 2766 fps | 98.7% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 47,210 psi | 78% | 2726 fps | 97.2% |
| Shooters World AR Plus | <<locked>> | 82% | 51,242 psi | 85% | 2736 fps | 99.4% |
| Shooters World Match Rifle | <<locked>> | 96% | 52,852 psi | 88% | 2805 fps | 99.6% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 53,766 psi | 89% | 2792 fps | 98.8% |
| Shooters World Tactical Rifle | <<locked>> | 86% | 50,981 psi | 85% | 2694 fps | 98% |
| SNPE Vectan BA6 1/2 | <<locked>> | 82% | 52,228 psi | 87% | 2415 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 86% | 53,185 psi | 88% | 2779 fps | 99.8% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 48,994 psi | 81% | 2776 fps | 96.6% |
| SNPE Vectan SP 3 | <<locked>> | 88% | 53,171 psi | 88% | 2736 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 96% | 52,605 psi | 87% | 2785 fps | 97.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 94% | 53,040 psi | 88% | 2690 fps | 99.8% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 51,547 psi | 86% | 2680 fps | 100% |
| Somchem S321 | <<locked>> | 90% | 51,851 psi | 86% | 2772 fps | 98.7% |
| Somchem S335 | <<locked>> | 94% | 51,938 psi | 86% | 2694 fps | 100% |
| Somchem S341 | <<locked>> | 94% | 51,474 psi | 86% | 2753 fps | 97.1% |
| Somchem S355ᴾ | <<locked>> | 100% | 48,269 psi | 80% | 2730 fps | 97.2% |
| Vihtavuori N120 | <<locked>> | 82% | 51,488 psi | 86% | 2605 fps | 100% |
| Vihtavuori N130 | <<locked>> | 90% | 52,866 psi | 88% | 2674 fps | 100% |
| Vihtavuori N133 | <<locked>> | 94% | 52,402 psi | 87% | 2687 fps | 100% |
| Vihtavuori N135 | <<locked>> | 98% | 51,721 psi | 86% | 2753 fps | 100% |
| Vihtavuori N140 | <<locked>> | 98% | 53,693 psi | 89% | 2762 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 46,398 psi | 77% | 2667 fps | 98.1% |
| Vihtavuori N530 | <<locked>> | 92% | 51,474 psi | 86% | 2736 fps | 98.5% |
| Vihtavuori N540 | <<locked>> | 98% | 52,054 psi | 86% | 2759 fps | 99.8% |
| Winchester 748 | <<locked>> | 94% | 52,895 psi | 88% | 2828 fps | 99.3% |
| Winchester StaBALL Match | <<locked>> | 96% | 52,011 psi | 86% | 2795 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% | 37,246 psi | 62% | 2451 fps | 99.6% |
| Accurate 2200 | <<locked>> | 80% | 46,760 psi | 78% | 2671 fps | 95.3% |
| Accurate 2230 | <<locked>> | 80% | 47,065 psi | 78% | 2680 fps | 95.8% |
| Accurate 2460 | <<locked>> | 80% | 40,118 psi | 67% | 2533 fps | 98.2% |
| Accurate 2495 | <<locked>> | 80% | 30,676 psi | 51% | 2362 fps | 98.7% |
| Accurate 2520 | <<locked>> | 80% | 35,186 psi | 58% | 2470 fps | 96.6% |
| Accurate 4064 | <<locked>> | 80% | 28,964 psi | 48% | 2333 fps | 95.6% |
| Accurate LT-30 | <<locked>> | 80% | 44,991 psi | 75% | 2533 fps | 99.7% |
| Accurate LT-32 | <<locked>> | 80% | 45,295 psi | 75% | 2543 fps | 98.8% |
| ADI AR 2206H | <<locked>> | 88% | 42,902 psi | 71% | 2618 fps | 95.3% |
| ADI AR 2207 | <<locked>> | 80% | 48,631 psi | 81% | 2612 fps | 100% |
| ADI AR 2208 | <<locked>> | 96% | 46,021 psi | 76% | 2654 fps | 95.2% |
| ADI AR 2219 | <<locked>> | 80% | 43,439 psi | 72% | 2625 fps | 99.6% |
| ADI Benchmark 8208 | <<locked>> | 82% | 38,029 psi | 63% | 2493 fps | 95.4% |
| Alliant AR-Comp | <<locked>> | 80% | 33,910 psi | 56% | 2467 fps | 100% |
| Alliant Power Pro 1200-R | 37 gr | 80% | 40,277 psi | 67% | 2618 fps | 95.4% |
| Alliant Power Pro 2000-MR | <<locked>> | 96% | 50,198 psi | 83% | 2835 fps | 95.6% |
| Alliant Power Pro Varmint | <<locked>> | 86% | 40,886 psi | 68% | 2585 fps | 95.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 39,697 psi | 66% | 2585 fps | 95.6% |
| Alliant Reloder-10x | <<locked>> | 80% | 41,887 psi | 70% | 2552 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 45,759 psi | 76% | 2694 fps | 95.5% |
| Alliant Reloder-17 | <<locked>> | 98% | 42,409 psi | 70% | 2690 fps | 95% |
| Alliant Reloder-7 | <<locked>> | 80% | 49,792 psi | 83% | 2625 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 43,540 psi | 72% | 2523 fps | 99.7% |
| Baschieri & Pellagri 107 | <<locked>> | 92% | 47,268 psi | 79% | 2713 fps | 95% |
| Bofors RP3 | <<locked>> | 92% | 39,581 psi | 66% | 2592 fps | 95.7% |
| Hodgdon Benchmark | <<locked>> | 80% | 38,087 psi | 63% | 2451 fps | 96.1% |
| Hodgdon BL-C2 | <<locked>> | 82% | 35,462 psi | 59% | 2497 fps | 95.3% |
| Hodgdon CFE223 | <<locked>> | 88% | 47,123 psi | 78% | 2772 fps | 95.7% |
| Hodgdon H322 | <<locked>> | 80% | 40,045 psi | 67% | 2559 fps | 99.1% |
| Hodgdon H335 | <<locked>> | 80% | 40,625 psi | 67% | 2572 fps | 98.5% |
| Hodgdon H4198 | <<locked>> | 80% | 49,255 psi | 82% | 2618 fps | 99.8% |
| Hodgdon H4895 | <<locked>> | 86% | 40,727 psi | 68% | 2582 fps | 95.4% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 38,899 psi | 65% | 2592 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,628 psi | 43% | 1490 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 41,698 psi | 69% | 2585 fps | 95.6% |
| IMR 3031 | 35.8 gr | 80% | 32,663 psi | 54% | 2451 fps | 98.3% |
| IMR 4064 | <<locked>> | 94% | 45,658 psi | 76% | 2641 fps | 95.4% |
| IMR 4198 | <<locked>> | 80% | 42,337 psi | 70% | 2523 fps | 100% |
| IMR 4895 | <<locked>> | 90% | 41,669 psi | 69% | 2631 fps | 95.1% |
| IMR 8208 XBR | <<locked>> | 82% | 38,029 psi | 63% | 2493 fps | 95.4% |
| Lovex D073.4 | <<locked>> | 80% | 47,993 psi | 80% | 2684 fps | 99% |
| Lovex D073.5 | <<locked>> | 80% | 39,682 psi | 66% | 2526 fps | 97% |
| Lovex D073.6 | <<locked>> | 80% | 32,082 psi | 53% | 2408 fps | 95.5% |
| Lovex S060 | <<locked>> | 88% | 44,005 psi | 73% | 2566 fps | 95.6% |
| Lovex S062 | <<locked>> | 88% | 38,072 psi | 63% | 2510 fps | 95.6% |
| Norma 200 | <<locked>> | 80% | 47,572 psi | 79% | 2621 fps | 100% |
| Norma 201 | <<locked>> | 84% | 37,913 psi | 63% | 2487 fps | 95.4% |
| Norma 202 | <<locked>> | 80% | 33,185 psi | 55% | 2408 fps | 96.7% |
| Norma 203B | <<locked>> | 92% | 42,438 psi | 71% | 2638 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 94% | 45,092 psi | 75% | 2697 fps | 95.5% |
| Ramshot Wild Boar | <<locked>> | 88% | 43,976 psi | 73% | 2648 fps | 95.5% |
| Ramshot X-Terminator | <<locked>> | 84% | 43,801 psi | 73% | 2582 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,701 psi | 43% | 1526 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 39,972 psi | 66% | 2533 fps | 97.5% |
| ReloadSwiss RS 52 | <<locked>> | 92% | 44,672 psi | 74% | 2740 fps | 95.1% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 35,476 psi | 59% | 2543 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 37,768 psi | 63% | 2464 fps | 97.6% |
| Rottweil R 902 | <<locked>> | 86% | 38,363 psi | 64% | 2490 fps | 95.5% |
| Rottweil R 903 | <<locked>> | 94% | 39,146 psi | 65% | 2575 fps | 95.1% |
| Shooters World AR Plus | <<locked>> | 80% | 47,993 psi | 80% | 2684 fps | 99% |
| Shooters World Match Rifle | <<locked>> | 80% | 32,082 psi | 53% | 2408 fps | 95.5% |
| Shooters World Precision | <<locked>> | 88% | 38,072 psi | 63% | 2510 fps | 95.6% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 42,235 psi | 70% | 2539 fps | 96.2% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 49,530 psi | 82% | 2379 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 44,266 psi | 74% | 2631 fps | 99% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 43,453 psi | 72% | 2674 fps | 95.1% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 41,945 psi | 70% | 2556 fps | 99.7% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 43,830 psi | 73% | 2635 fps | 95.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 35,273 psi | 59% | 2372 fps | 97.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 28,834 psi | 48% | 2238 fps | 96.1% |
| Somchem S321 | <<locked>> | 80% | 37,985 psi | 63% | 2516 fps | 95.8% |
| Somchem S335 | <<locked>> | 80% | 34,780 psi | 58% | 2379 fps | 97.9% |
| Somchem S341 | <<locked>> | 88% | 42,453 psi | 71% | 2595 fps | 95% |
| Somchem S355 | <<locked>> | 94% | 40,582 psi | 67% | 2585 fps | 95.3% |
| Vihtavuori N120 | <<locked>> | 80% | 48,573 psi | 81% | 2566 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 39,740 psi | 66% | 2464 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 34,940 psi | 58% | 2382 fps | 99.2% |
| Vihtavuori N135 | <<locked>> | 80% | 30,342 psi | 50% | 2352 fps | 98.5% |
| Vihtavuori N140 | <<locked>> | 80% | 31,314 psi | 52% | 2346 fps | 96.4% |
| Vihtavuori N150 | <<locked>> | 92% | 36,448 psi | 61% | 2477 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 82% | 37,797 psi | 63% | 2484 fps | 95.4% |
| Vihtavuori N540 | <<locked>> | 80% | 30,211 psi | 50% | 2329 fps | 95.3% |
| Winchester 748 | 38.8 gr | 80% | 34,229 psi | 57% | 2467 fps | 95.1% |
| Winchester StaBALL Match | <<locked>> | 88% | 40,553 psi | 67% | 2592 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 103 powders for .308 Win. Ackley Improved loaded with the .308 | 150gr | Impala LWH CHP. ReloadSwiss RS 52 delivers the highest muzzle velocity at 2,897 fps; across all powders the maximum-charge window runs from 1,667 fps to 2,897 fps. Accurate 4064 gives the best case fill at 100 %, and 103 of the 103 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 1:12.5 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. Alliant Power Pro 1200-R, Winchester 748, IMR 3031 rank at the top here: for .308 Win. Ackley Improved with the .308 | 150gr | Impala LWH CHP 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.