Load Specifications
Load data in caliber .30-06 Ackley Improved with .308 | 165gr | Barnes TTSX BT 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 52 and ReloadSwiss RS 60.
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>> | 88% | 53,490 psi | 86% | 2690 fps | 100% |
| Accurate 2460 | <<locked>> | 86% | 55,593 psi | 89% | 2762 fps | 100% |
| Accurate 2495 | <<locked>> | 94% | 54,114 psi | 87% | 2749 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 53,417 psi | 86% | 2769 fps | 100% |
| Accurate 4064 | <<locked>> | 96% | 53,722 psi | 86% | 2785 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 45,992 psi | 74% | 2736 fps | 97.5% |
| Accurate LT-30 | <<locked>> | 82% | 53,563 psi | 86% | 2641 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 53,983 psi | 87% | 2664 fps | 100% |
| ADI AR 2206H | <<locked>> | 92% | 56,159 psi | 90% | 2828 fps | 99.7% |
| ADI AR 2208 | <<locked>> | 96% | 53,606 psi | 86% | 2772 fps | 99.1% |
| ADI AR 2219 | <<locked>> | 82% | 54,056 psi | 87% | 2756 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 90% | 55,434 psi | 89% | 2785 fps | 100% |
| Alliant AR-Comp | <<locked>> | 90% | 55,347 psi | 89% | 2766 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 53,374 psi | 86% | 2835 fps | 99.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 94% | 55,709 psi | 89% | 2936 fps | 99.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 98% | 56,362 psi | 90% | 2841 fps | 99.9% |
| Alliant Reloder-10x | <<locked>> | 84% | 53,374 psi | 86% | 2697 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 53,809 psi | 86% | 2815 fps | 99.2% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 46,064 psi | 74% | 2746 fps | 97.6% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 53,432 psi | 86% | 2904 fps | 99.8% |
| Baschieri & Pellagri 106 | <<locked>> | 84% | 56,014 psi | 90% | 2684 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 92% | 56,028 psi | 90% | 2841 fps | 99.1% |
| Bofors RP3 | <<locked>> | 96% | 52,953 psi | 85% | 2802 fps | 99.8% |
| Hodgdon Benchmark | <<locked>> | 88% | 54,302 psi | 87% | 2726 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 90% | 54,230 psi | 87% | 2812 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 88% | 56,173 psi | 90% | 2907 fps | 99.5% |
| Hodgdon H322 | <<locked>> | 86% | 56,391 psi | 90% | 2789 fps | 100% |
| Hodgdon H335 | <<locked>> | 84% | 53,824 psi | 86% | 2762 fps | 100% |
| Hodgdon H380 | <<locked>> | 96% | 54,723 psi | 88% | 2815 fps | 98.4% |
| Hodgdon H4895 | <<locked>> | 90% | 53,142 psi | 85% | 2789 fps | 99.7% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 42,250 psi | 68% | 2635 fps | 98.2% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 55,608 psi | 89% | 2871 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,592 psi | 55% | 1677 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 54,636 psi | 88% | 2792 fps | 99.7% |
| IMR 3031 | <<locked>> | 92% | 55,970 psi | 90% | 2825 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 53,272 psi | 85% | 2759 fps | 99.2% |
| IMR 4166 Enduron | <<locked>> | 92% | 53,983 psi | 87% | 2736 fps | 96.1% |
| IMR 4198 | <<locked>> | 84% | 54,128 psi | 87% | 2664 fps | 100% |
| IMR 4451 Enduronᴾ | <<locked>> | 100% | 56,362 psi | 90% | 2802 fps | 96.5% |
| IMR 4831ᴾ | <<locked>> | 100% | 44,179 psi | 71% | 2684 fps | 97.2% |
| IMR 4895 | <<locked>> | 94% | 55,143 psi | 88% | 2844 fps | 99.6% |
| IMR 8208 XBR | <<locked>> | 90% | 55,434 psi | 89% | 2785 fps | 100% |
| Lovex D073.5 | <<locked>> | 86% | 55,332 psi | 89% | 2772 fps | 100% |
| Lovex D073.6 | <<locked>> | 92% | 55,114 psi | 88% | 2805 fps | 100% |
| Lovex S060 | <<locked>> | 92% | 56,260 psi | 90% | 2759 fps | 99.6% |
| Lovex S062 | <<locked>> | 96% | 55,709 psi | 89% | 2799 fps | 100% |
| Lovex S065ᴾ | <<locked>> | 100% | 51,648 psi | 83% | 2740 fps | 97.2% |
| Norma 201 | <<locked>> | 92% | 54,621 psi | 88% | 2772 fps | 99.9% |
| Norma 202 | <<locked>> | 92% | 55,274 psi | 89% | 2782 fps | 100% |
| Norma 203B | <<locked>> | 96% | 56,420 psi | 90% | 2854 fps | 99.7% |
| Norma URPᴾ | <<locked>> | 100% | 46,398 psi | 74% | 2736 fps | 97.4% |
| Ramshot Big Game | <<locked>> | 94% | 53,243 psi | 85% | 2825 fps | 99.4% |
| Ramshot TAC | <<locked>> | 90% | 55,970 psi | 90% | 2799 fps | 98.1% |
| Ramshot Wild Boar | <<locked>> | 90% | 55,317 psi | 89% | 2822 fps | 99.6% |
| Ramshot X-Terminator | <<locked>> | 86% | 53,330 psi | 86% | 2736 fps | 99.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,722 psi | 56% | 1713 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 55,042 psi | 88% | 2769 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 96% | 55,564 psi | 89% | 2799 fps | 97.1% |
| ReloadSwiss RS 52 | <<locked>> | 92% | 53,635 psi | 86% | 2874 fps | 99.2% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 53,519 psi | 86% | 2910 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 46,180 psi | 74% | 2762 fps | 97.2% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 47,282 psi | 76% | 2779 fps | 96.6% |
| Rottweil R 901 | <<locked>> | 90% | 55,303 psi | 89% | 2756 fps | 100% |
| Rottweil R 902 | <<locked>> | 94% | 54,853 psi | 88% | 2766 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 98% | 52,808 psi | 85% | 2792 fps | 99.7% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 51,648 psi | 83% | 2740 fps | 97.2% |
| Shooters World Match Rifle | <<locked>> | 92% | 55,114 psi | 88% | 2805 fps | 100% |
| Shooters World Precision | <<locked>> | 96% | 55,709 psi | 89% | 2799 fps | 100% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 55,042 psi | 88% | 2743 fps | 99.9% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 54,360 psi | 87% | 2766 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 98% | 54,969 psi | 88% | 2858 fps | 99.6% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 54,476 psi | 87% | 2720 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 90% | 54,027 psi | 87% | 2772 fps | 98.2% |
| SNPE Vectan SP 9 | <<locked>> | 92% | 54,476 psi | 87% | 2799 fps | 99.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 53,490 psi | 86% | 2677 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 53,156 psi | 85% | 2671 fps | 100% |
| SNPE Vectan Tubal 7000ᴾ | <<locked>> | 100% | 52,156 psi | 84% | 2694 fps | 95.8% |
| Somchem S321 | <<locked>> | 86% | 53,127 psi | 85% | 2769 fps | 99.9% |
| Somchem S335 | <<locked>> | 92% | 55,883 psi | 90% | 2720 fps | 100% |
| Somchem S341 | <<locked>> | 90% | 53,403 psi | 86% | 2766 fps | 99.4% |
| Somchem S355 | <<locked>> | 98% | 53,476 psi | 86% | 2792 fps | 99.7% |
| Somchem S365ᴾ | <<locked>> | 100% | 40,959 psi | 66% | 2680 fps | 99.2% |
| Vihtavuori N130 | <<locked>> | 86% | 53,577 psi | 86% | 2651 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 53,519 psi | 86% | 2667 fps | 100% |
| Vihtavuori N135 | <<locked>> | 94% | 54,230 psi | 87% | 2740 fps | 100% |
| Vihtavuori N140 | <<locked>> | 94% | 55,680 psi | 89% | 2759 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 55,347 psi | 89% | 2779 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 48,718 psi | 78% | 2736 fps | 97.8% |
| Vihtavuori N530 | <<locked>> | 90% | 55,985 psi | 90% | 2785 fps | 100% |
| Vihtavuori N540 | <<locked>> | 94% | 53,853 psi | 86% | 2756 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 47,732 psi | 77% | 2740 fps | 97.5% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 50,067 psi | 80% | 2726 fps | 99.5% |
| Winchester 748 | <<locked>> | 90% | 55,434 psi | 89% | 2831 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 92% | 54,186 psi | 87% | 2808 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% | 41,452 psi | 66% | 2507 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 45,121 psi | 72% | 2608 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 33,634 psi | 54% | 2411 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 40,408 psi | 65% | 2559 fps | 99.6% |
| Accurate 4064 | <<locked>> | 80% | 31,850 psi | 51% | 2395 fps | 98.8% |
| Accurate 4350 | <<locked>> | 94% | 37,246 psi | 60% | 2569 fps | 95.1% |
| Accurate LT-30 | <<locked>> | 80% | 50,227 psi | 81% | 2595 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 50,604 psi | 81% | 2615 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 38,116 psi | 61% | 2510 fps | 96.7% |
| ADI AR 2208 | <<locked>> | 84% | 37,043 psi | 59% | 2470 fps | 95.6% |
| ADI AR 2219 | <<locked>> | 80% | 50,575 psi | 81% | 2707 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 40,219 psi | 64% | 2530 fps | 98.4% |
| Alliant AR-Comp | <<locked>> | 80% | 39,363 psi | 63% | 2533 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 46,630 psi | 75% | 2723 fps | 99.1% |
| Alliant Power Pro 2000-MR | 48.8 gr | 84% | 39,479 psi | 63% | 2635 fps | 95.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 31,459 psi | 50% | 2379 fps | 95.5% |
| Alliant Reloder-10x | <<locked>> | 80% | 47,297 psi | 76% | 2608 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 36,376 psi | 58% | 2493 fps | 95.6% |
| Alliant Reloder-16 | <<locked>> | 94% | 38,232 psi | 61% | 2582 fps | 95.2% |
| Alliant Reloder-17 | <<locked>> | 86% | 33,272 psi | 53% | 2493 fps | 95.2% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 49,385 psi | 79% | 2592 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 37,289 psi | 60% | 2510 fps | 95.2% |
| Bofors RP3 | <<locked>> | 80% | 30,618 psi | 49% | 2372 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 42,438 psi | 68% | 2530 fps | 99.2% |
| Hodgdon BL-C2 | <<locked>> | 80% | 38,392 psi | 62% | 2543 fps | 98.5% |
| Hodgdon CFE223 | <<locked>> | 80% | 42,351 psi | 68% | 2674 fps | 97.3% |
| Hodgdon H322 | <<locked>> | 80% | 46,137 psi | 74% | 2638 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 46,731 psi | 75% | 2657 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 41,698 psi | 67% | 2595 fps | 95.8% |
| Hodgdon H4895 | <<locked>> | 80% | 38,421 psi | 62% | 2523 fps | 97.4% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 32,576 psi | 52% | 2425 fps | 95.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 34,476 psi | 55% | 2487 fps | 96.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,570 psi | 41% | 1496 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 37,159 psi | 60% | 2480 fps | 96.9% |
| IMR 3031 | <<locked>> | 80% | 37,579 psi | 60% | 2533 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 36,347 psi | 58% | 2448 fps | 95.6% |
| IMR 4166 Enduron | <<locked>> | 90% | 50,705 psi | 81% | 2684 fps | 95.4% |
| IMR 4198 | <<locked>> | 80% | 47,935 psi | 77% | 2575 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 96% | 49,719 psi | 80% | 2697 fps | 95.1% |
| IMR 4831 | <<locked>> | 96% | 38,566 psi | 62% | 2575 fps | 95.6% |
| IMR 4895 | <<locked>> | 80% | 34,809 psi | 56% | 2470 fps | 95.8% |
| IMR 8208 XBR | <<locked>> | 80% | 40,219 psi | 64% | 2530 fps | 98.4% |
| Lovex D073.5 | <<locked>> | 80% | 44,962 psi | 72% | 2612 fps | 99.6% |
| Lovex D073.6 | <<locked>> | 80% | 36,550 psi | 59% | 2493 fps | 99% |
| Lovex S060 | <<locked>> | 80% | 39,102 psi | 63% | 2464 fps | 97% |
| Lovex S062 | <<locked>> | 80% | 33,750 psi | 54% | 2405 fps | 96.8% |
| Lovex S065 | <<locked>> | 94% | 42,815 psi | 69% | 2589 fps | 95% |
| Norma 201 | <<locked>> | 80% | 37,333 psi | 60% | 2470 fps | 97.8% |
| Norma 202 | <<locked>> | 80% | 37,420 psi | 60% | 2487 fps | 99.5% |
| Norma 203B | <<locked>> | 80% | 33,373 psi | 54% | 2428 fps | 95.1% |
| Norma URP | <<locked>> | 94% | 37,985 psi | 61% | 2572 fps | 95.1% |
| Ramshot Big Game | <<locked>> | 82% | 35,230 psi | 56% | 2490 fps | 95.5% |
| Ramshot TAC | <<locked>> | 82% | 42,917 psi | 69% | 2579 fps | 95.3% |
| Ramshot Wild Boar | <<locked>> | 80% | 39,247 psi | 63% | 2543 fps | 97% |
| Ramshot X-Terminator | <<locked>> | 80% | 43,758 psi | 70% | 2579 fps | 97.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,788 psi | 41% | 1532 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 45,353 psi | 73% | 2618 fps | 99.8% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 48,602 psi | 78% | 2690 fps | 95.7% |
| ReloadSwiss RS 52 | 45.1 gr | 80% | 35,288 psi | 57% | 2533 fps | 95.1% |
| ReloadSwiss RS 60 | 45.8 gr | 80% | 29,109 psi | 47% | 2388 fps | 95.9% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 40,118 psi | 64% | 2644 fps | 95.5% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 44,019 psi | 71% | 2717 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 80% | 41,002 psi | 66% | 2526 fps | 99.7% |
| Rottweil R 902 | <<locked>> | 80% | 35,520 psi | 57% | 2425 fps | 97.3% |
| Rottweil R 903 | <<locked>> | 82% | 30,719 psi | 49% | 2369 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 94% | 42,815 psi | 69% | 2589 fps | 95% |
| Shooters World Match Rifle | <<locked>> | 80% | 36,550 psi | 59% | 2493 fps | 99% |
| Shooters World Precision | <<locked>> | 80% | 33,750 psi | 54% | 2405 fps | 96.8% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 48,008 psi | 77% | 2638 fps | 99.3% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 50,691 psi | 81% | 2713 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 34,461 psi | 55% | 2477 fps | 95.3% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 48,196 psi | 77% | 2628 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 40,843 psi | 65% | 2549 fps | 95.3% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 36,883 psi | 59% | 2484 fps | 96.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 39,218 psi | 63% | 2448 fps | 99.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 32,140 psi | 52% | 2310 fps | 99.2% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 48,718 psi | 78% | 2641 fps | 95% |
| Somchem S321 | <<locked>> | 80% | 43,337 psi | 69% | 2608 fps | 99.2% |
| Somchem S335 | <<locked>> | 80% | 38,580 psi | 62% | 2448 fps | 99.9% |
| Somchem S341 | <<locked>> | 80% | 37,942 psi | 61% | 2497 fps | 96.5% |
| Somchem S355 | <<locked>> | 82% | 32,126 psi | 52% | 2388 fps | 95.2% |
| Somchem S365 | <<locked>> | 90% | 29,631 psi | 48% | 2405 fps | 95.4% |
| Vihtavuori N130 | <<locked>> | 80% | 44,556 psi | 71% | 2520 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 39,421 psi | 63% | 2448 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 34,577 psi | 55% | 2421 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 35,520 psi | 57% | 2428 fps | 99.4% |
| Vihtavuori N150 | <<locked>> | 80% | 28,485 psi | 46% | 2277 fps | 95.3% |
| Vihtavuori N160 | <<locked>> | 94% | 40,118 psi | 64% | 2579 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 80% | 40,161 psi | 64% | 2526 fps | 98.5% |
| Vihtavuori N540 | <<locked>> | 80% | 34,040 psi | 55% | 2411 fps | 98.8% |
| Vihtavuori N550 | <<locked>> | 94% | 39,160 psi | 63% | 2579 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 33,533 psi | 54% | 2405 fps | 95.5% |
| Winchester 748 | <<locked>> | 80% | 39,247 psi | 63% | 2566 fps | 98.9% |
| Winchester StaBALL Match | <<locked>> | 80% | 35,940 psi | 58% | 2480 fps | 96.7% |
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 94 powders for .30-06 Ackley Improved loaded with the .308 | 165gr | Barnes TTSX BT. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,936 fps; across all powders the maximum-charge window runs from 1,677 fps to 2,936 fps. Accurate 4350 gives the best case fill at 100 %, and 94 of the 94 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 55–90 %, leaving at least 10 % headroom. The 165.0 gr projectile in 0.308" calls for a 1:11.5 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 52, ReloadSwiss RS 60 rank at the top here: for .30-06 Ackley Improved with the .308 | 165gr | Barnes TTSX BT 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.