Load Specifications
Bullet Manufacturer:TWENTY-NINE
Bullet Weight:178 gr
Bullet Diameter:0.308"
Bullet Length:<<locked>>
Caliber:.30-06 Ackley Improved load data
Case Length (l3):2.486"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:70 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:24"
Max. allowed Pressure:62,366 psi
Recommended Twist Rate:1:11.0
Load data in caliber .30-06 Ackley Improved with .308 | 178gr | TWENTY-NINE SILENTIO bullet and 103 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Alliant Power Pro 2000-MR 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>> | 86% | 53,809 psi | 86% | 2579 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 55,695 psi | 89% | 2651 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 54,926 psi | 88% | 2638 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 53,737 psi | 86% | 2661 fps | 100% |
| Accurate 2700 | <<locked>> | 92% | 55,259 psi | 89% | 2638 fps | 96.3% |
| Accurate 4064 | <<locked>> | 94% | 54,824 psi | 88% | 2684 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 50,473 psi | 81% | 2700 fps | 98.8% |
| Accurate LT-30 | <<locked>> | 82% | 56,144 psi | 90% | 2562 fps | 100% |
| ADI AR 2206H | <<locked>> | 90% | 56,028 psi | 90% | 2713 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 94% | 53,679 psi | 86% | 2664 fps | 99.5% |
| ADI Benchmark 8208 | <<locked>> | 88% | 55,405 psi | 89% | 2671 fps | 100% |
| Alliant AR-Comp | <<locked>> | 88% | 55,550 psi | 89% | 2648 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 53,693 psi | 86% | 2723 fps | 99.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 55,448 psi | 89% | 2825 fps | 99.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 53,316 psi | 85% | 2687 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 82% | 53,664 psi | 86% | 2582 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 53,896 psi | 86% | 2703 fps | 99.6% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 49,371 psi | 79% | 2703 fps | 98.9% |
| Alliant Reloder-17 | <<locked>> | 98% | 53,621 psi | 86% | 2795 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 34,940 psi | 56% | 2444 fps | 96.8% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 55,434 psi | 89% | 2566 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 55,869 psi | 90% | 2730 fps | 99.5% |
| Bofors RP3 | <<locked>> | 94% | 53,461 psi | 86% | 2697 fps | 100% |
| Bofors RP7 | <<locked>> | 98% | 54,346 psi | 87% | 2664 fps | 96.4% |
| Hodgdon Benchmark | <<locked>> | 86% | 54,012 psi | 87% | 2612 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 88% | 54,157 psi | 87% | 2697 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 52,518 psi | 84% | 2740 fps | 99.5% |
| Hodgdon H322 | <<locked>> | 84% | 56,115 psi | 90% | 2667 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 53,577 psi | 86% | 2648 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 54,969 psi | 88% | 2710 fps | 99% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 53,780 psi | 86% | 2749 fps | 97.1% |
| Hodgdon H4350 | <<locked>> | 98% | 55,027 psi | 88% | 2713 fps | 95.9% |
| Hodgdon H4895 | <<locked>> | 88% | 53,345 psi | 86% | 2680 fps | 99.9% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 45,643 psi | 73% | 2592 fps | 99.3% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 55,564 psi | 89% | 2756 fps | 100% |
| Hodgdon Superformanceᴾ | <<locked>> | 100% | 54,984 psi | 88% | 2782 fps | 96.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,172 psi | 56% | 1611 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 54,621 psi | 88% | 2680 fps | 99.9% |
| IMR 3031 | <<locked>> | 90% | 56,246 psi | 90% | 2707 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 53,316 psi | 85% | 2651 fps | 99.5% |
| IMR 4166 Enduron | <<locked>> | 90% | 53,563 psi | 86% | 2628 fps | 96.9% |
| IMR 4198 | <<locked>> | 82% | 53,795 psi | 86% | 2543 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 98% | 56,202 psi | 90% | 2697 fps | 97.3% |
| IMR 4831ᴾ | <<locked>> | 100% | 48,095 psi | 77% | 2648 fps | 98.6% |
| IMR 4895 | <<locked>> | 92% | 55,274 psi | 89% | 2736 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 88% | 55,405 psi | 89% | 2671 fps | 100% |
| Lovex D073.5 | <<locked>> | 84% | 55,550 psi | 89% | 2661 fps | 100% |
| Lovex D073.6 | <<locked>> | 90% | 55,506 psi | 89% | 2694 fps | 100% |
| Lovex S060 | <<locked>> | 90% | 55,956 psi | 90% | 2648 fps | 99.9% |
| Lovex S062 | <<locked>> | 94% | 56,101 psi | 90% | 2694 fps | 100% |
| Lovex S065ᴾ | <<locked>> | 100% | 54,998 psi | 88% | 2687 fps | 98.4% |
| Lovex S070ᴾ | <<locked>> | 100% | 52,388 psi | 84% | 2667 fps | 97% |
| Norma 201 | <<locked>> | 90% | 54,853 psi | 88% | 2664 fps | 100% |
| Norma 202 | <<locked>> | 90% | 55,448 psi | 89% | 2667 fps | 100% |
| Norma 203B | <<locked>> | 92% | 53,055 psi | 85% | 2694 fps | 99.7% |
| Norma URPᴾ | <<locked>> | 100% | 49,879 psi | 80% | 2690 fps | 98.7% |
| Ramshot Big Game | <<locked>> | 92% | 53,316 psi | 85% | 2717 fps | 99.7% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 49,226 psi | 79% | 2684 fps | 97% |
| Ramshot TAC | <<locked>> | 88% | 55,854 psi | 90% | 2690 fps | 98.6% |
| Ramshot Wild Boar | <<locked>> | 88% | 55,027 psi | 88% | 2707 fps | 99.8% |
| Ramshot X-Terminator | <<locked>> | 84% | 53,113 psi | 85% | 2628 fps | 99.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,433 psi | 57% | 1647 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 54,911 psi | 88% | 2654 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 55,390 psi | 89% | 2694 fps | 97.8% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 54,012 psi | 87% | 2766 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 53,577 psi | 86% | 2802 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 50,053 psi | 80% | 2720 fps | 98.6% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 50,691 psi | 81% | 2743 fps | 98.2% |
| Rottweil R 901 | <<locked>> | 88% | 55,941 psi | 90% | 2648 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 55,129 psi | 88% | 2657 fps | 100% |
| Rottweil R 903 | <<locked>> | 96% | 53,330 psi | 86% | 2687 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 98% | 54,346 psi | 87% | 2664 fps | 96.4% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 54,998 psi | 88% | 2687 fps | 98.4% |
| Shooters World Match Rifle | <<locked>> | 90% | 55,506 psi | 89% | 2694 fps | 100% |
| Shooters World Precision | <<locked>> | 94% | 56,101 psi | 90% | 2694 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 52,388 psi | 84% | 2667 fps | 97% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 54,549 psi | 87% | 2625 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 55,027 psi | 88% | 2746 fps | 99.8% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 54,578 psi | 88% | 2602 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 53,882 psi | 86% | 2664 fps | 98.7% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 54,447 psi | 87% | 2687 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 53,447 psi | 86% | 2566 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 53,403 psi | 86% | 2566 fps | 100% |
| SNPE Vectan Tubal 7000ᴾ | <<locked>> | 100% | 55,709 psi | 89% | 2641 fps | 97.2% |
| Somchem S321 | <<locked>> | 84% | 53,127 psi | 85% | 2657 fps | 100% |
| Somchem S335 | <<locked>> | 90% | 55,912 psi | 90% | 2608 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 53,548 psi | 86% | 2661 fps | 99.7% |
| Somchem S355 | <<locked>> | 96% | 53,737 psi | 86% | 2684 fps | 99.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 44,570 psi | 71% | 2644 fps | 99.9% |
| Vihtavuori N130 | <<locked>> | 84% | 53,417 psi | 86% | 2536 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 53,534 psi | 86% | 2552 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 54,520 psi | 87% | 2628 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 55,883 psi | 90% | 2648 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 55,550 psi | 89% | 2671 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 52,591 psi | 84% | 2690 fps | 99% |
| Vihtavuori N530 | <<locked>> | 88% | 55,956 psi | 90% | 2674 fps | 100% |
| Vihtavuori N540 | <<locked>> | 92% | 53,954 psi | 87% | 2644 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 51,706 psi | 83% | 2697 fps | 98.7% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 37,492 psi | 60% | 2520 fps | 96.8% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 53,519 psi | 86% | 2677 fps | 99.9% |
| Winchester 748 | <<locked>> | 88% | 55,448 psi | 89% | 2720 fps | 100% |
| Winchester 760ᴾ | <<locked>> | 100% | 54,041 psi | 87% | 2753 fps | 97.2% |
| Winchester StaBALL Match | <<locked>> | 90% | 54,360 psi | 87% | 2700 fps | 99.9% |
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% | 44,672 psi | 72% | 2451 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 48,646 psi | 78% | 2552 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 37,391 psi | 60% | 2375 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 43,772 psi | 70% | 2513 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 51,547 psi | 83% | 2582 fps | 95.5% |
| Accurate 4064 | <<locked>> | 80% | 35,389 psi | 57% | 2365 fps | 99.7% |
| Accurate 4350 | <<locked>> | 90% | 35,592 psi | 57% | 2431 fps | 95.4% |
| Accurate LT-30 | <<locked>> | 80% | 52,939 psi | 85% | 2523 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 41,133 psi | 66% | 2470 fps | 98.2% |
| ADI AR 2208 | <<locked>> | 80% | 34,954 psi | 56% | 2326 fps | 95.7% |
| ADI Benchmark 8208 | <<locked>> | 80% | 43,134 psi | 69% | 2480 fps | 99.3% |
| Alliant AR-Comp | <<locked>> | 80% | 42,786 psi | 69% | 2474 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 50,212 psi | 81% | 2671 fps | 99.8% |
| Alliant Power Pro 2000-MR | 45.7 gr | 80% | 37,101 psi | 59% | 2484 fps | 96.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 34,330 psi | 55% | 2349 fps | 97.3% |
| Alliant Reloder-10x | <<locked>> | 80% | 50,531 psi | 81% | 2539 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 36,985 psi | 59% | 2405 fps | 96.6% |
| Alliant Reloder-16 | <<locked>> | 90% | 36,477 psi | 58% | 2448 fps | 95.6% |
| Alliant Reloder-17 | <<locked>> | 82% | 31,560 psi | 51% | 2356 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 98% | 32,967 psi | 53% | 2395 fps | 95.9% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 51,895 psi | 83% | 2520 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 39,914 psi | 64% | 2467 fps | 96.8% |
| Bofors RP3 | <<locked>> | 80% | 33,779 psi | 54% | 2349 fps | 97.3% |
| Bofors RP7 | <<locked>> | 94% | 48,037 psi | 77% | 2566 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 44,991 psi | 72% | 2474 fps | 99.8% |
| Hodgdon BL-C2 | <<locked>> | 80% | 41,568 psi | 67% | 2497 fps | 99.5% |
| Hodgdon CFE223 | <<locked>> | 80% | 45,716 psi | 73% | 2628 fps | 98.7% |
| Hodgdon H322 | <<locked>> | 80% | 49,153 psi | 79% | 2572 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 49,966 psi | 80% | 2595 fps | 100% |
| Hodgdon H380 | <<locked>> | 82% | 37,057 psi | 59% | 2398 fps | 95.2% |
| Hodgdon H414 | <<locked>> | 96% | 47,108 psi | 76% | 2641 fps | 95.7% |
| Hodgdon H4350 | <<locked>> | 96% | 51,547 psi | 83% | 2661 fps | 95.1% |
| Hodgdon H4895 | <<locked>> | 80% | 41,437 psi | 66% | 2480 fps | 98.7% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 31,241 psi | 50% | 2297 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 37,260 psi | 60% | 2448 fps | 98.2% |
| Hodgdon Superformance | <<locked>> | 96% | 47,877 psi | 77% | 2667 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,208 psi | 42% | 1440 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 39,711 psi | 64% | 2431 fps | 98.3% |
| IMR 3031 | <<locked>> | 80% | 40,596 psi | 65% | 2477 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 36,637 psi | 59% | 2356 fps | 96.6% |
| IMR 4166 Enduron | <<locked>> | 86% | 47,485 psi | 76% | 2530 fps | 95.5% |
| IMR 4198 | <<locked>> | 80% | 50,894 psi | 82% | 2503 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 92% | 46,789 psi | 75% | 2546 fps | 95.3% |
| IMR 4831 | <<locked>> | 90% | 34,606 psi | 55% | 2392 fps | 95.1% |
| IMR 4895 | <<locked>> | 80% | 37,811 psi | 61% | 2434 fps | 97.5% |
| IMR 8208 XBR | <<locked>> | 80% | 43,134 psi | 69% | 2480 fps | 99.3% |
| Lovex D073.5 | <<locked>> | 80% | 48,501 psi | 78% | 2559 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 39,769 psi | 64% | 2451 fps | 99.8% |
| Lovex S060 | <<locked>> | 80% | 41,481 psi | 67% | 2411 fps | 98.3% |
| Lovex S062 | <<locked>> | 80% | 36,448 psi | 58% | 2365 fps | 98.3% |
| Lovex S065 | <<locked>> | 90% | 40,727 psi | 65% | 2448 fps | 95.3% |
| Lovex S070 | <<locked>> | 96% | 46,340 psi | 74% | 2569 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 40,393 psi | 65% | 2428 fps | 99% |
| Norma 202 | <<locked>> | 80% | 40,451 psi | 65% | 2438 fps | 100% |
| Norma 203B | <<locked>> | 80% | 36,347 psi | 58% | 2395 fps | 97% |
| Norma URP | <<locked>> | 90% | 36,245 psi | 58% | 2438 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 80% | 35,737 psi | 57% | 2402 fps | 96.6% |
| Ramshot Hunter | <<locked>> | 96% | 43,091 psi | 69% | 2575 fps | 95.5% |
| Ramshot TAC | <<locked>> | 80% | 42,873 psi | 69% | 2477 fps | 96.1% |
| Ramshot Wild Boar | <<locked>> | 80% | 42,206 psi | 68% | 2500 fps | 98.3% |
| Ramshot X-Terminator | <<locked>> | 80% | 46,644 psi | 75% | 2526 fps | 99% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,310 psi | 42% | 1470 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 48,298 psi | 77% | 2559 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 42,946 psi | 69% | 2487 fps | 95.1% |
| ReloadSwiss RS 52 | 44.3 gr | 80% | 38,319 psi | 61% | 2497 fps | 97% |
| ReloadSwiss RS 60 | 45 gr | 80% | 31,517 psi | 51% | 2369 fps | 98.1% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 38,159 psi | 61% | 2503 fps | 95.8% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 41,466 psi | 66% | 2569 fps | 95.9% |
| Rottweil R 901 | <<locked>> | 80% | 44,092 psi | 71% | 2470 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 38,261 psi | 61% | 2379 fps | 98.6% |
| Rottweil R 903 | <<locked>> | 80% | 31,691 psi | 51% | 2293 fps | 96.3% |
| Rottweil R 907 | <<locked>> | 94% | 48,037 psi | 77% | 2566 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 90% | 40,727 psi | 65% | 2448 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 39,769 psi | 64% | 2451 fps | 99.8% |
| Shooters World Precision | <<locked>> | 80% | 36,448 psi | 58% | 2365 fps | 98.3% |
| Shooters World SW4350 | <<locked>> | 96% | 46,340 psi | 74% | 2569 fps | 95.6% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 51,155 psi | 82% | 2575 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 32,779 psi | 53% | 2339 fps | 95.6% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 51,343 psi | 82% | 2559 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 41,046 psi | 66% | 2451 fps | 96.3% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 39,610 psi | 64% | 2438 fps | 97.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 41,959 psi | 67% | 2392 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 34,679 psi | 56% | 2267 fps | 99.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 45,774 psi | 73% | 2497 fps | 95.2% |
| Somchem S321 | <<locked>> | 80% | 46,267 psi | 74% | 2552 fps | 99.8% |
| Somchem S335 | <<locked>> | 80% | 41,481 psi | 67% | 2395 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 40,683 psi | 65% | 2451 fps | 98% |
| Somchem S355 | <<locked>> | 80% | 32,822 psi | 53% | 2306 fps | 96.4% |
| Somchem S365 | <<locked>> | 86% | 28,660 psi | 46% | 2287 fps | 96% |
| Vihtavuori N130 | <<locked>> | 80% | 47,471 psi | 76% | 2454 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 42,177 psi | 68% | 2388 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 37,623 psi | 60% | 2375 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 38,232 psi | 61% | 2379 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 80% | 31,009 psi | 50% | 2244 fps | 97.2% |
| Vihtavuori N160 | <<locked>> | 88% | 35,723 psi | 57% | 2388 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 80% | 43,221 psi | 69% | 2477 fps | 99.4% |
| Vihtavuori N540 | <<locked>> | 80% | 36,738 psi | 59% | 2365 fps | 99.6% |
| Vihtavuori N550 | <<locked>> | 90% | 37,289 psi | 60% | 2441 fps | 95.5% |
| Vihtavuori N555 | <<locked>> | 96% | 33,054 psi | 53% | 2418 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 31,676 psi | 51% | 2274 fps | 95.8% |
| Winchester 748 | <<locked>> | 80% | 42,366 psi | 68% | 2516 fps | 99.7% |
| Winchester 760 | <<locked>> | 96% | 47,427 psi | 76% | 2648 fps | 95.7% |
| Winchester StaBALL Match | <<locked>> | 80% | 38,827 psi | 62% | 2441 fps | 98.2% |
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 .30-06 Ackley Improved loaded with the .308 | 178gr | TWENTY-NINE SILENTIO. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,825 fps; across all powders the maximum-charge window runs from 1,611 fps to 2,825 fps. Accurate 4350 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 (430 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 178.0 gr projectile in 0.308" calls for a 1:11.0 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. ReloadSwiss RS 60, Alliant Power Pro 2000-MR, ReloadSwiss RS 52 rank at the top here: for .30-06 Ackley Improved with the .308 | 178gr | TWENTY-NINE SILENTIO 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.