Load Specifications
Load data in caliber .30-06 Ackley Improved with .308 | 155gr | Berger BT Target bullet and 94 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 2000-MR, ReloadSwiss RS 60 and ReloadSwiss RS 52.
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.
A valid access license is required to use the Personalized Load Calculator.
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>> | 88% | 55,230 psi | 89% | 2812 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 53,606 psi | 86% | 2835 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 53,026 psi | 85% | 2831 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 55,477 psi | 89% | 2897 fps | 100% |
| Accurate 4064 | <<locked>> | 96% | 56,057 psi | 90% | 2917 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 48,138 psi | 77% | 2864 fps | 97.6% |
| Accurate LT-30 | <<locked>> | 82% | 54,679 psi | 88% | 2759 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 55,071 psi | 88% | 2782 fps | 100% |
| ADI AR 2206H | <<locked>> | 90% | 54,360 psi | 87% | 2900 fps | 99.4% |
| ADI AR 2208 | <<locked>> | 96% | 55,158 psi | 88% | 2894 fps | 99% |
| ADI AR 2219 | <<locked>> | 82% | 55,506 psi | 89% | 2877 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 88% | 53,505 psi | 86% | 2858 fps | 99.8% |
| Alliant AR-Comp | <<locked>> | 88% | 53,548 psi | 86% | 2844 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 55,027 psi | 88% | 2963 fps | 99.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 53,664 psi | 86% | 3005 fps | 98.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 54,491 psi | 87% | 2917 fps | 99.8% |
| Alliant Reloder-10x | <<locked>> | 84% | 55,172 psi | 88% | 2822 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 55,535 psi | 89% | 2940 fps | 99.2% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 47,543 psi | 76% | 2871 fps | 97.7% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 55,376 psi | 89% | 3031 fps | 99.8% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 53,693 psi | 86% | 2749 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 53,925 psi | 86% | 2910 fps | 98.7% |
| Bofors RP3 | <<locked>> | 96% | 54,984 psi | 88% | 2930 fps | 99.8% |
| Hodgdon Benchmark | <<locked>> | 88% | 55,492 psi | 89% | 2844 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 90% | 56,173 psi | 90% | 2940 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 86% | 53,969 psi | 87% | 2976 fps | 99.1% |
| Hodgdon H322 | <<locked>> | 84% | 53,983 psi | 87% | 2858 fps | 100% |
| Hodgdon H335 | <<locked>> | 84% | 55,216 psi | 89% | 2884 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 53,055 psi | 85% | 2887 fps | 98% |
| Hodgdon H4895 | <<locked>> | 90% | 54,868 psi | 88% | 2913 fps | 99.7% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 43,874 psi | 70% | 2756 fps | 98.3% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 53,577 psi | 86% | 2940 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,925 psi | 56% | 1759 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 56,043 psi | 90% | 2913 fps | 99.7% |
| IMR 3031 | <<locked>> | 90% | 54,099 psi | 87% | 2900 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 54,723 psi | 88% | 2877 fps | 99.1% |
| IMR 4166 Enduron | <<locked>> | 92% | 55,245 psi | 89% | 2854 fps | 96.1% |
| IMR 4198 | <<locked>> | 84% | 55,303 psi | 89% | 2782 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 98% | 54,433 psi | 87% | 2871 fps | 95.9% |
| IMR 4831ᴾ | <<locked>> | 100% | 46,079 psi | 74% | 2808 fps | 97.3% |
| IMR 4895 | <<locked>> | 92% | 53,258 psi | 85% | 2917 fps | 99.3% |
| IMR 8208 XBR | <<locked>> | 88% | 53,505 psi | 86% | 2858 fps | 99.8% |
| Lovex D073.5 | <<locked>> | 84% | 53,490 psi | 86% | 2841 fps | 100% |
| Lovex D073.6 | <<locked>> | 90% | 53,287 psi | 85% | 2877 fps | 100% |
| Lovex S060 | <<locked>> | 90% | 54,520 psi | 87% | 2835 fps | 99.4% |
| Lovex S062 | <<locked>> | 94% | 54,186 psi | 87% | 2877 fps | 99.9% |
| Lovex S065ᴾ | <<locked>> | 100% | 53,272 psi | 85% | 2861 fps | 97.2% |
| Norma 201 | <<locked>> | 90% | 52,910 psi | 85% | 2844 fps | 99.8% |
| Norma 202 | <<locked>> | 90% | 53,388 psi | 86% | 2854 fps | 100% |
| Norma 203B | <<locked>> | 94% | 54,607 psi | 88% | 2927 fps | 99.4% |
| Norma URPᴾ | <<locked>> | 100% | 47,964 psi | 77% | 2858 fps | 97.5% |
| Ramshot Big Game | <<locked>> | 94% | 54,998 psi | 88% | 2949 fps | 99.4% |
| Ramshot TAC | <<locked>> | 88% | 54,085 psi | 87% | 2867 fps | 97.5% |
| Ramshot Wild Boar | <<locked>> | 88% | 53,200 psi | 85% | 2887 fps | 99.2% |
| Ramshot X-Terminator | <<locked>> | 86% | 54,752 psi | 88% | 2858 fps | 99.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,070 psi | 56% | 1795 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 53,026 psi | 85% | 2841 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 53,664 psi | 86% | 2867 fps | 96.5% |
| ReloadSwiss RS 52 | <<locked>> | 92% | 55,666 psi | 89% | 3009 fps | 99.2% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 54,984 psi | 88% | 3038 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 47,921 psi | 77% | 2884 fps | 97.3% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 48,936 psi | 78% | 2907 fps | 96.7% |
| Rottweil R 901 | <<locked>> | 88% | 54,215 psi | 87% | 2838 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 53,403 psi | 86% | 2844 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 98% | 54,824 psi | 88% | 2920 fps | 99.7% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 53,272 psi | 85% | 2861 fps | 97.2% |
| Shooters World Match Rifle | <<locked>> | 90% | 53,287 psi | 85% | 2877 fps | 100% |
| Shooters World Precision | <<locked>> | 94% | 54,186 psi | 87% | 2877 fps | 99.9% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 52,779 psi | 85% | 2808 fps | 99.6% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 55,898 psi | 90% | 2890 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 52,997 psi | 85% | 2927 fps | 99.2% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 56,057 psi | 90% | 2844 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 90% | 55,579 psi | 89% | 2894 fps | 98.2% |
| SNPE Vectan SP 9 | <<locked>> | 92% | 56,275 psi | 90% | 2923 fps | 99.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 54,940 psi | 88% | 2795 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 54,679 psi | 88% | 2789 fps | 100% |
| SNPE Vectan Tubal 7000ᴾ | <<locked>> | 100% | 54,012 psi | 87% | 2818 fps | 95.8% |
| Somchem S321 | <<locked>> | 86% | 54,665 psi | 88% | 2890 fps | 99.9% |
| Somchem S335 | <<locked>> | 90% | 54,056 psi | 87% | 2792 fps | 100% |
| Somchem S341 | <<locked>> | 90% | 55,114 psi | 88% | 2890 fps | 99.4% |
| Somchem S355 | <<locked>> | 98% | 55,448 psi | 89% | 2920 fps | 99.7% |
| Somchem S365ᴾ | <<locked>> | 100% | 42,728 psi | 69% | 2805 fps | 99.2% |
| Vihtavuori N130 | <<locked>> | 86% | 54,998 psi | 88% | 2769 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 54,911 psi | 88% | 2785 fps | 100% |
| Vihtavuori N135 | <<locked>> | 94% | 55,898 psi | 90% | 2864 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 53,737 psi | 86% | 2831 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 53,519 psi | 86% | 2851 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 50,459 psi | 81% | 2858 fps | 97.8% |
| Vihtavuori N530 | <<locked>> | 88% | 54,157 psi | 87% | 2861 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 94% | 55,695 psi | 89% | 2881 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 49,647 psi | 80% | 2864 fps | 97.5% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 51,619 psi | 83% | 2848 fps | 99.5% |
| Winchester 748 | <<locked>> | 88% | 53,374 psi | 86% | 2904 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 92% | 55,883 psi | 90% | 2933 fps | 99.8% |
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% | 43,149 psi | 69% | 2628 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 46,978 psi | 75% | 2730 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 35,679 psi | 57% | 2536 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 42,105 psi | 68% | 2680 fps | 99.6% |
| Accurate 4064 | <<locked>> | 80% | 33,721 psi | 54% | 2516 fps | 98.9% |
| Accurate 4350 | <<locked>> | 94% | 39,160 psi | 63% | 2694 fps | 95.3% |
| Accurate LT-30 | <<locked>> | 80% | 51,474 psi | 83% | 2710 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 51,866 psi | 83% | 2733 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 39,624 psi | 64% | 2631 fps | 96.8% |
| ADI AR 2208 | <<locked>> | 84% | 38,276 psi | 61% | 2582 fps | 95.6% |
| ADI AR 2219 | <<locked>> | 80% | 51,924 psi | 83% | 2825 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 41,611 psi | 67% | 2648 fps | 98.4% |
| Alliant AR-Comp | <<locked>> | 80% | 40,930 psi | 66% | 2651 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 48,298 psi | 77% | 2848 fps | 99.1% |
| Alliant Power Pro 2000-MR | 51.7 gr | 84% | 40,930 psi | 66% | 2756 fps | 96% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 32,837 psi | 53% | 2493 fps | 95.6% |
| Alliant Reloder-10x | <<locked>> | 80% | 48,718 psi | 78% | 2726 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 37,753 psi | 61% | 2608 fps | 95.6% |
| Alliant Reloder-16 | <<locked>> | 94% | 39,740 psi | 64% | 2703 fps | 95.3% |
| Alliant Reloder-17 | <<locked>> | 86% | 34,650 psi | 56% | 2612 fps | 95.3% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 50,488 psi | 81% | 2707 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 38,493 psi | 62% | 2621 fps | 95.1% |
| Bofors RP3 | <<locked>> | 80% | 32,242 psi | 52% | 2490 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 80% | 43,642 psi | 70% | 2644 fps | 99.2% |
| Hodgdon BL-C2 | <<locked>> | 80% | 39,871 psi | 64% | 2657 fps | 98.6% |
| Hodgdon CFE223 | <<locked>> | 80% | 43,859 psi | 70% | 2795 fps | 97.4% |
| Hodgdon H322 | <<locked>> | 80% | 47,398 psi | 76% | 2756 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 48,399 psi | 78% | 2782 fps | 100% |
| Hodgdon H380 | <<locked>> | 86% | 40,596 psi | 65% | 2657 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 39,929 psi | 64% | 2641 fps | 97.4% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 34,055 psi | 55% | 2543 fps | 95.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 35,708 psi | 57% | 2598 fps | 96.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,947 psi | 42% | 1572 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 38,305 psi | 61% | 2592 fps | 96.9% |
| IMR 3031 | <<locked>> | 80% | 38,899 psi | 62% | 2648 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 37,753 psi | 61% | 2566 fps | 95.7% |
| IMR 4166 Enduron | <<locked>> | 90% | 52,069 psi | 83% | 2802 fps | 95.4% |
| IMR 4198 | <<locked>> | 80% | 49,095 psi | 79% | 2694 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 96% | 51,329 psi | 82% | 2818 fps | 95.1% |
| IMR 4831 | <<locked>> | 96% | 40,379 psi | 65% | 2700 fps | 95.7% |
| IMR 4895 | <<locked>> | 80% | 36,332 psi | 58% | 2589 fps | 95.9% |
| IMR 8208 XBR | <<locked>> | 80% | 41,611 psi | 67% | 2648 fps | 98.4% |
| Lovex D073.5 | <<locked>> | 80% | 46,862 psi | 75% | 2736 fps | 99.7% |
| Lovex D073.6 | <<locked>> | 80% | 38,101 psi | 61% | 2612 fps | 99% |
| Lovex S060 | <<locked>> | 80% | 40,103 psi | 64% | 2575 fps | 97% |
| Lovex S062 | <<locked>> | 80% | 35,041 psi | 56% | 2516 fps | 96.9% |
| Lovex S065 | <<locked>> | 94% | 44,353 psi | 71% | 2703 fps | 95.1% |
| Norma 201 | <<locked>> | 80% | 38,885 psi | 62% | 2589 fps | 97.9% |
| Norma 202 | <<locked>> | 80% | 38,827 psi | 62% | 2602 fps | 99.5% |
| Norma 203B | <<locked>> | 80% | 34,896 psi | 56% | 2546 fps | 95.3% |
| Norma URP | <<locked>> | 94% | 39,581 psi | 63% | 2690 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 82% | 36,651 psi | 59% | 2605 fps | 95.6% |
| Ramshot TAC | <<locked>> | 82% | 44,251 psi | 71% | 2694 fps | 95.3% |
| Ramshot Wild Boar | <<locked>> | 80% | 40,814 psi | 65% | 2661 fps | 97% |
| Ramshot X-Terminator | <<locked>> | 80% | 45,049 psi | 72% | 2694 fps | 97.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,165 psi | 42% | 1608 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 46,717 psi | 75% | 2736 fps | 99.8% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 47,181 psi | 76% | 2756 fps | 95% |
| ReloadSwiss RS 52 | 47.7 gr | 80% | 36,622 psi | 59% | 2648 fps | 95.1% |
| ReloadSwiss RS 60 | 48.4 gr | 80% | 30,240 psi | 48% | 2497 fps | 96% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 41,858 psi | 67% | 2769 fps | 95.7% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 45,803 psi | 73% | 2844 fps | 95.8% |
| Rottweil R 901 | <<locked>> | 80% | 42,670 psi | 68% | 2644 fps | 99.8% |
| Rottweil R 902 | <<locked>> | 80% | 36,898 psi | 59% | 2539 fps | 97.4% |
| Rottweil R 903 | <<locked>> | 82% | 32,314 psi | 52% | 2487 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 94% | 44,353 psi | 71% | 2703 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 38,101 psi | 61% | 2612 fps | 99% |
| Shooters World Precision | <<locked>> | 80% | 35,041 psi | 56% | 2516 fps | 96.9% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 49,385 psi | 79% | 2753 fps | 99.3% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 52,388 psi | 84% | 2838 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 35,911 psi | 58% | 2595 fps | 95.4% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 49,472 psi | 79% | 2749 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 42,366 psi | 68% | 2664 fps | 95.4% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 38,174 psi | 61% | 2595 fps | 96.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 40,451 psi | 65% | 2559 fps | 99.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 33,330 psi | 53% | 2418 fps | 99.2% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 50,357 psi | 81% | 2759 fps | 95% |
| Somchem S321 | <<locked>> | 80% | 44,701 psi | 72% | 2726 fps | 99.2% |
| Somchem S335 | <<locked>> | 80% | 39,972 psi | 64% | 2559 fps | 99.9% |
| Somchem S341 | <<locked>> | 80% | 39,247 psi | 63% | 2612 fps | 96.6% |
| Somchem S355 | <<locked>> | 82% | 33,460 psi | 54% | 2500 fps | 95.3% |
| Somchem S365 | <<locked>> | 90% | 31,111 psi | 50% | 2526 fps | 95.7% |
| Vihtavuori N130 | <<locked>> | 80% | 45,847 psi | 74% | 2635 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 40,640 psi | 65% | 2559 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 35,998 psi | 58% | 2536 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 36,825 psi | 59% | 2539 fps | 99.4% |
| Vihtavuori N150 | <<locked>> | 80% | 29,791 psi | 48% | 2385 fps | 95.5% |
| Vihtavuori N160 | <<locked>> | 94% | 41,626 psi | 67% | 2697 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 80% | 41,597 psi | 67% | 2641 fps | 98.5% |
| Vihtavuori N540 | <<locked>> | 80% | 35,433 psi | 57% | 2523 fps | 98.9% |
| Vihtavuori N550 | <<locked>> | 94% | 40,886 psi | 66% | 2700 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 34,780 psi | 56% | 2516 fps | 95.6% |
| Winchester 748 | <<locked>> | 80% | 40,553 psi | 65% | 2680 fps | 98.9% |
| Winchester StaBALL Match | <<locked>> | 80% | 37,318 psi | 60% | 2595 fps | 96.8% |
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 109 powders for .30-06 Ackley Improved loaded with the .308 | 155gr | Berger BT Target. ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,038 fps; across all powders the maximum-charge window runs from 1,759 fps to 3,038 fps. Accurate 4350 gives the best case fill at 100 %, and 109 of the 109 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 155.0 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-17 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 2000-MR, ReloadSwiss RS 60, ReloadSwiss RS 52 rank at the top here: for .30-06 Ackley Improved with the .308 | 155gr | Berger BT Target they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2700, Alliant Reloder-23, Alliant Reloder-26 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.