Load Specifications
Load data in caliber .30-06 Ackley Improved with .308 | 180gr | Sierra HP MatchKing bullet and 99 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-17, ReloadSwiss RS 60 and Alliant Power Pro 2000-MR.
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>> | 84% | 53,766 psi | 86% | 2582 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 55,637 psi | 89% | 2654 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 55,637 psi | 89% | 2651 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 53,679 psi | 86% | 2664 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 55,013 psi | 88% | 2651 fps | 96.9% |
| Accurate 4064 | <<locked>> | 92% | 55,521 psi | 89% | 2697 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 54,853 psi | 88% | 2772 fps | 99.6% |
| ADI AR 2206H | <<locked>> | 88% | 56,014 psi | 90% | 2723 fps | 100% |
| ADI AR 2208 | <<locked>> | 92% | 53,809 psi | 86% | 2677 fps | 99.7% |
| ADI Benchmark 8208 | <<locked>> | 86% | 55,216 psi | 89% | 2680 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 55,927 psi | 90% | 2654 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 55,695 psi | 89% | 2841 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 53,403 psi | 86% | 2694 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 54,273 psi | 87% | 2720 fps | 99.8% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 53,026 psi | 85% | 2776 fps | 99.7% |
| Alliant Reloder-17 | <<locked>> | 96% | 53,896 psi | 86% | 2808 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 37,710 psi | 60% | 2520 fps | 98.3% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 41,872 psi | 67% | 2667 fps | 97.4% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 55,782 psi | 89% | 2740 fps | 99.7% |
| Bofors RP3 | <<locked>> | 92% | 54,143 psi | 87% | 2713 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 54,404 psi | 87% | 2680 fps | 97.1% |
| Hodgdon Benchmark | <<locked>> | 84% | 53,592 psi | 86% | 2615 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 54,505 psi | 87% | 2710 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 52,533 psi | 84% | 2746 fps | 99.7% |
| Hodgdon H322 | <<locked>> | 82% | 55,912 psi | 90% | 2671 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 54,998 psi | 88% | 2723 fps | 99.3% |
| Hodgdon H414 | <<locked>> | 98% | 54,491 psi | 87% | 2769 fps | 97.8% |
| Hodgdon H4350 | <<locked>> | 96% | 55,390 psi | 89% | 2736 fps | 96.6% |
| Hodgdon H4895 | <<locked>> | 86% | 53,287 psi | 85% | 2687 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 49,110 psi | 79% | 2657 fps | 99.8% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 55,811 psi | 89% | 2766 fps | 100% |
| Hodgdon Superformance | <<locked>> | 98% | 55,013 psi | 88% | 2802 fps | 97.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,346 psi | 57% | 1631 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 54,549 psi | 87% | 2690 fps | 100% |
| IMR 3031 | <<locked>> | 88% | 56,434 psi | 90% | 2713 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 53,359 psi | 86% | 2661 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 88% | 53,287 psi | 85% | 2638 fps | 97.4% |
| IMR 4350ᴾ | <<locked>> | 100% | 54,230 psi | 87% | 2703 fps | 97.1% |
| IMR 4451 Enduron | <<locked>> | 96% | 56,144 psi | 90% | 2710 fps | 97.8% |
| IMR 4831ᴾ | <<locked>> | 100% | 52,025 psi | 83% | 2713 fps | 99.4% |
| IMR 4895 | <<locked>> | 90% | 55,651 psi | 89% | 2749 fps | 100% |
| IMR 8208 XBR | <<locked>> | 86% | 55,216 psi | 89% | 2680 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 55,332 psi | 89% | 2664 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 55,637 psi | 89% | 2700 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 55,840 psi | 90% | 2657 fps | 100% |
| Lovex S062 | <<locked>> | 92% | 56,405 psi | 90% | 2703 fps | 100% |
| Lovex S065 | <<locked>> | 98% | 55,434 psi | 89% | 2703 fps | 98.8% |
| Lovex S070ᴾ | <<locked>> | 100% | 56,159 psi | 90% | 2736 fps | 98.1% |
| Norma 201 | <<locked>> | 88% | 54,723 psi | 88% | 2671 fps | 100% |
| Norma 202 | <<locked>> | 88% | 55,303 psi | 89% | 2674 fps | 100% |
| Norma 203B | <<locked>> | 90% | 53,447 psi | 86% | 2707 fps | 99.9% |
| Norma 204ᴾ | <<locked>> | 100% | 55,042 psi | 88% | 2749 fps | 95.9% |
| Norma URPᴾ | <<locked>> | 100% | 53,925 psi | 86% | 2759 fps | 99.5% |
| Ramshot Big Game | <<locked>> | 90% | 53,751 psi | 86% | 2730 fps | 99.9% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 52,895 psi | 85% | 2756 fps | 98.3% |
| Ramshot TAC | <<locked>> | 86% | 55,434 psi | 89% | 2697 fps | 99% |
| Ramshot Wild Boar | <<locked>> | 86% | 54,897 psi | 88% | 2713 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 84% | 56,231 psi | 90% | 2680 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,882 psi | 58% | 1670 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 54,549 psi | 87% | 2657 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 55,448 psi | 89% | 2707 fps | 98.3% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 54,549 psi | 87% | 2782 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 53,679 psi | 86% | 2812 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 54,650 psi | 88% | 2795 fps | 99.5% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 54,404 psi | 87% | 2818 fps | 99.3% |
| Rottweil R 901 | <<locked>> | 86% | 56,057 psi | 90% | 2654 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 55,245 psi | 89% | 2671 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 53,925 psi | 86% | 2703 fps | 100% |
| Rottweil R 907 | <<locked>> | 96% | 54,404 psi | 87% | 2680 fps | 97.1% |
| Shooters World Long Rifle | <<locked>> | 98% | 55,434 psi | 89% | 2703 fps | 98.8% |
| Shooters World Match Rifle | <<locked>> | 88% | 55,637 psi | 89% | 2700 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 56,405 psi | 90% | 2703 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 56,159 psi | 90% | 2736 fps | 98.1% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 55,637 psi | 89% | 2762 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 53,679 psi | 86% | 2674 fps | 99.1% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 54,621 psi | 88% | 2700 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 53,055 psi | 85% | 2569 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 56,434 psi | 90% | 2608 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 55,840 psi | 90% | 2661 fps | 97.8% |
| Somchem S321 | <<locked>> | 82% | 52,924 psi | 85% | 2661 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 55,680 psi | 89% | 2612 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 53,345 psi | 86% | 2667 fps | 99.9% |
| Somchem S355 | <<locked>> | 94% | 54,288 psi | 87% | 2700 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 48,312 psi | 77% | 2710 fps | 100% |
| Vihtavuori N130 | <<locked>> | 84% | 56,405 psi | 90% | 2579 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 53,287 psi | 85% | 2556 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 54,984 psi | 88% | 2635 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 55,854 psi | 90% | 2654 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 55,767 psi | 89% | 2680 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 53,156 psi | 85% | 2707 fps | 99.3% |
| Vihtavuori N530 | <<locked>> | 86% | 55,622 psi | 89% | 2677 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 54,070 psi | 87% | 2654 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 55,753 psi | 89% | 2762 fps | 99.5% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 40,915 psi | 66% | 2595 fps | 98.2% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 53,447 psi | 86% | 2687 fps | 100% |
| Winchester 748 | <<locked>> | 86% | 55,608 psi | 89% | 2726 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 54,491 psi | 87% | 2769 fps | 97.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 33,721 psi | 54% | 2513 fps | 97.8% |
| Winchester StaBALL Match | <<locked>> | 88% | 54,157 psi | 87% | 2703 fps | 100% |
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% | 47,456 psi | 76% | 2497 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 52,040 psi | 83% | 2608 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 40,147 psi | 64% | 2425 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 47,094 psi | 76% | 2569 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 48,182 psi | 77% | 2546 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 37,971 psi | 61% | 2421 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 33,924 psi | 54% | 2398 fps | 95.4% |
| ADI AR 2206H | <<locked>> | 80% | 43,729 psi | 70% | 2526 fps | 99% |
| ADI AR 2208 | <<locked>> | 80% | 37,304 psi | 60% | 2385 fps | 97% |
| ADI Benchmark 8208 | <<locked>> | 80% | 45,759 psi | 73% | 2536 fps | 99.8% |
| Alliant AR-Comp | <<locked>> | 80% | 45,919 psi | 74% | 2523 fps | 100% |
| Alliant Power Pro 2000-MR | 48.3 gr | 80% | 39,494 psi | 63% | 2549 fps | 97.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 36,622 psi | 59% | 2402 fps | 98.4% |
| Alliant Reloder-15 | <<locked>> | 80% | 39,508 psi | 63% | 2464 fps | 97.8% |
| Alliant Reloder-16 | <<locked>> | 86% | 34,389 psi | 55% | 2411 fps | 95.5% |
| Alliant Reloder-17 | 47.6 gr | 80% | 31,633 psi | 51% | 2369 fps | 96.3% |
| Alliant Reloder-23 | <<locked>> | 92% | 29,660 psi | 48% | 2316 fps | 95% |
| Alliant Reloder-26 | <<locked>> | 96% | 36,535 psi | 59% | 2546 fps | 95.4% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 42,685 psi | 68% | 2526 fps | 98% |
| Bofors RP3 | <<locked>> | 80% | 36,318 psi | 58% | 2408 fps | 98.4% |
| Bofors RP7 | <<locked>> | 92% | 47,906 psi | 77% | 2579 fps | 95.7% |
| Hodgdon Benchmark | <<locked>> | 80% | 47,558 psi | 76% | 2523 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 44,353 psi | 71% | 2552 fps | 99.9% |
| Hodgdon CFE223 | <<locked>> | 80% | 49,066 psi | 79% | 2694 fps | 99.4% |
| Hodgdon H322 | <<locked>> | 80% | 52,228 psi | 84% | 2621 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 37,231 psi | 60% | 2411 fps | 95.9% |
| Hodgdon H414 | <<locked>> | 92% | 44,686 psi | 72% | 2608 fps | 95.7% |
| Hodgdon H4350 | <<locked>> | 92% | 48,805 psi | 78% | 2631 fps | 95.1% |
| Hodgdon H4895 | <<locked>> | 80% | 44,135 psi | 71% | 2536 fps | 99.4% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 29,617 psi | 47% | 2264 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 39,943 psi | 64% | 2510 fps | 99.1% |
| Hodgdon Superformance | <<locked>> | 94% | 47,805 psi | 77% | 2684 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,368 psi | 42% | 1453 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 42,235 psi | 68% | 2490 fps | 99.1% |
| IMR 3031 | <<locked>> | 80% | 43,772 psi | 70% | 2533 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 39,131 psi | 63% | 2418 fps | 97.8% |
| IMR 4166 Enduron | <<locked>> | 82% | 44,251 psi | 71% | 2487 fps | 95.4% |
| IMR 4350 | <<locked>> | 96% | 48,066 psi | 77% | 2605 fps | 95.8% |
| IMR 4451 Enduron | <<locked>> | 88% | 43,990 psi | 71% | 2510 fps | 95.2% |
| IMR 4831 | <<locked>> | 86% | 32,967 psi | 53% | 2359 fps | 95.1% |
| IMR 4895 | <<locked>> | 80% | 40,437 psi | 65% | 2493 fps | 98.5% |
| IMR 8208 XBR | <<locked>> | 80% | 45,759 psi | 73% | 2536 fps | 99.8% |
| Lovex D073.5 | <<locked>> | 80% | 51,793 psi | 83% | 2615 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 42,815 psi | 69% | 2510 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 43,947 psi | 70% | 2467 fps | 99% |
| Lovex S062 | <<locked>> | 80% | 39,044 psi | 63% | 2421 fps | 99.1% |
| Lovex S065 | <<locked>> | 86% | 38,392 psi | 62% | 2411 fps | 95.2% |
| Lovex S070 | <<locked>> | 92% | 43,859 psi | 70% | 2536 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 42,830 psi | 69% | 2480 fps | 99.6% |
| Norma 202 | <<locked>> | 80% | 42,960 psi | 69% | 2487 fps | 100% |
| Norma 203B | <<locked>> | 80% | 38,856 psi | 62% | 2454 fps | 98.2% |
| Norma 204 | <<locked>> | 98% | 51,372 psi | 82% | 2694 fps | 95% |
| Norma URP | <<locked>> | 86% | 34,447 psi | 55% | 2402 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 80% | 38,174 psi | 61% | 2464 fps | 97.8% |
| Ramshot Hunter | <<locked>> | 92% | 40,799 psi | 65% | 2543 fps | 95.5% |
| Ramshot TAC | <<locked>> | 80% | 45,513 psi | 73% | 2536 fps | 97.4% |
| Ramshot Wild Boar | <<locked>> | 80% | 45,063 psi | 72% | 2559 fps | 99.2% |
| Ramshot X-Terminator | <<locked>> | 80% | 49,211 psi | 79% | 2579 fps | 99.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,701 psi | 43% | 1490 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 51,343 psi | 82% | 2612 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 42,888 psi | 69% | 2500 fps | 95.7% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 41,350 psi | 66% | 2562 fps | 98.2% |
| ReloadSwiss RS 60 | 47.6 gr | 80% | 33,663 psi | 54% | 2434 fps | 99.2% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 36,056 psi | 58% | 2467 fps | 95.7% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 38,885 psi | 62% | 2533 fps | 95.8% |
| Rottweil R 901 | <<locked>> | 80% | 46,760 psi | 75% | 2520 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 40,886 psi | 66% | 2438 fps | 99.4% |
| Rottweil R 903 | <<locked>> | 80% | 34,171 psi | 55% | 2356 fps | 97.6% |
| Rottweil R 907 | <<locked>> | 92% | 47,906 psi | 77% | 2579 fps | 95.7% |
| Shooters World Long Rifle | <<locked>> | 86% | 38,392 psi | 62% | 2411 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 42,815 psi | 69% | 2510 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 39,044 psi | 63% | 2421 fps | 99.1% |
| Shooters World SW4350 | <<locked>> | 92% | 43,859 psi | 70% | 2536 fps | 95.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 35,157 psi | 56% | 2402 fps | 97% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 43,903 psi | 70% | 2513 fps | 97.5% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 42,264 psi | 68% | 2497 fps | 98.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 44,193 psi | 71% | 2438 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 36,709 psi | 59% | 2313 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 43,105 psi | 69% | 2461 fps | 95.1% |
| Somchem S321 | <<locked>> | 80% | 49,284 psi | 79% | 2608 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 43,830 psi | 70% | 2441 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 43,511 psi | 70% | 2510 fps | 98.9% |
| Somchem S355 | <<locked>> | 80% | 35,041 psi | 56% | 2362 fps | 97.6% |
| Somchem S365 | <<locked>> | 82% | 27,122 psi | 43% | 2251 fps | 95.8% |
| Vihtavuori N130 | <<locked>> | 80% | 49,893 psi | 80% | 2493 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 44,498 psi | 71% | 2431 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 40,118 psi | 64% | 2418 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 40,799 psi | 65% | 2428 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 33,301 psi | 53% | 2303 fps | 98.4% |
| Vihtavuori N160 | <<locked>> | 84% | 33,794 psi | 54% | 2356 fps | 95% |
| Vihtavuori N530 | <<locked>> | 80% | 45,847 psi | 74% | 2533 fps | 99.8% |
| Vihtavuori N540 | <<locked>> | 80% | 39,305 psi | 63% | 2421 fps | 100% |
| Vihtavuori N550 | <<locked>> | 86% | 35,433 psi | 57% | 2408 fps | 95.4% |
| Vihtavuori N555 | <<locked>> | 92% | 31,647 psi | 51% | 2388 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 29,501 psi | 47% | 2228 fps | 95.5% |
| Winchester 748 | <<locked>> | 80% | 45,353 psi | 73% | 2572 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 44,686 psi | 72% | 2608 fps | 95.7% |
| Winchester StaBALL HD | <<locked>> | 96% | 29,631 psi | 48% | 2385 fps | 95.4% |
| Winchester StaBALL Match | <<locked>> | 80% | 41,713 psi | 67% | 2503 fps | 99.1% |
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 99 powders for .30-06 Ackley Improved loaded with the .308 | 180gr | Sierra HP MatchKing. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,841 fps; across all powders the maximum-charge window runs from 1,631 fps to 2,841 fps. Accurate 4350 gives the best case fill at 100 %, and 99 of the 99 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 54–90 %, leaving at least 10 % headroom. The 180.0 gr projectile in 0.308" calls for a 1:13.0 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Alliant Reloder-23 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 Reloder-17, ReloadSwiss RS 60, Alliant Power Pro 2000-MR rank at the top here: for .30-06 Ackley Improved with the .308 | 180gr | Sierra HP MatchKing 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.