Load Specifications
Bullet Manufacturer:Sierra
Bullet Weight:205 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:1:13.0
Load data in caliber .30-06 Ackley Improved with .308 | 205gr | Sierra GameKing bullet and 101 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Hodgdon Superformance and Alliant Reloder-17.
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>> | 82% | 54,592 psi | 88% | 2415 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 53,650 psi | 86% | 2444 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 55,013 psi | 88% | 2503 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 55,767 psi | 89% | 2503 fps | 98.3% |
| Accurate 3100ᴾ | <<locked>> | 100% | 44,048 psi | 71% | 2428 fps | 97.9% |
| Accurate 4064 | <<locked>> | 88% | 53,751 psi | 86% | 2493 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 53,330 psi | 86% | 2575 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 84% | 53,679 psi | 86% | 2516 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 54,737 psi | 88% | 2520 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 51,764 psi | 83% | 2562 fps | 96.9% |
| ADI Benchmark 8208 | <<locked>> | 84% | 55,970 psi | 90% | 2513 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 53,751 psi | 86% | 2441 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 53,330 psi | 86% | 2631 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 55,042 psi | 88% | 2543 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 55,550 psi | 89% | 2562 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 98% | 54,447 psi | 87% | 2628 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 94% | 55,811 psi | 89% | 2657 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 50,676 psi | 81% | 2552 fps | 96.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 41,611 psi | 67% | 2448 fps | 99.8% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 36,854 psi | 59% | 2365 fps | 96.5% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 46,659 psi | 75% | 2605 fps | 99.5% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 53,359 psi | 86% | 2536 fps | 99.9% |
| Bofors RP3 | <<locked>> | 90% | 55,477 psi | 89% | 2556 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 55,303 psi | 89% | 2533 fps | 98.5% |
| Hodgdon Benchmark | <<locked>> | 82% | 54,230 psi | 87% | 2451 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 55,622 psi | 89% | 2546 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 52,736 psi | 85% | 2523 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 96% | 56,028 psi | 90% | 2625 fps | 99.1% |
| Hodgdon H4350 | <<locked>> | 92% | 53,330 psi | 86% | 2543 fps | 97.6% |
| Hodgdon H4895 | <<locked>> | 84% | 54,215 psi | 87% | 2526 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 54,259 psi | 87% | 2556 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 53,853 psi | 86% | 2559 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 52,605 psi | 84% | 2608 fps | 98.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,882 psi | 58% | 1526 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 55,405 psi | 89% | 2526 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 54,694 psi | 88% | 2507 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 54,230 psi | 87% | 2503 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 86% | 53,925 psi | 86% | 2487 fps | 98.7% |
| IMR 4350 | <<locked>> | 98% | 55,593 psi | 89% | 2562 fps | 98.5% |
| IMR 4451 Enduron | <<locked>> | 92% | 53,954 psi | 87% | 2516 fps | 98.6% |
| IMR 4831 | <<locked>> | 98% | 53,969 psi | 87% | 2569 fps | 100% |
| IMR 4895 | <<locked>> | 86% | 53,563 psi | 86% | 2543 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 55,970 psi | 90% | 2513 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 53,722 psi | 86% | 2497 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 53,301 psi | 85% | 2454 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 54,157 psi | 87% | 2500 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 53,548 psi | 86% | 2513 fps | 99.4% |
| Lovex S070 | <<locked>> | 96% | 54,186 psi | 87% | 2543 fps | 98.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 36,492 psi | 59% | 2293 fps | 96% |
| Norma 201 | <<locked>> | 86% | 55,883 psi | 90% | 2510 fps | 100% |
| Norma 202 | <<locked>> | 84% | 53,185 psi | 85% | 2467 fps | 100% |
| Norma 203B | <<locked>> | 88% | 54,752 psi | 88% | 2549 fps | 100% |
| Norma 204 | <<locked>> | 98% | 56,318 psi | 90% | 2608 fps | 97.6% |
| Norma MRPᴾ | <<locked>> | 100% | 46,630 psi | 75% | 2566 fps | 97.6% |
| Norma URP | <<locked>> | 98% | 56,115 psi | 90% | 2615 fps | 100% |
| Ramshot Big Game | <<locked>> | 88% | 55,274 psi | 89% | 2575 fps | 100% |
| Ramshot Hunter | <<locked>> | 98% | 54,563 psi | 87% | 2612 fps | 99.4% |
| Ramshot TAC | <<locked>> | 84% | 56,173 psi | 90% | 2543 fps | 99.7% |
| Ramshot Wild Boar | <<locked>> | 84% | 55,883 psi | 90% | 2552 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,535 psi | 59% | 1565 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 52,953 psi | 85% | 2507 fps | 99% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 56,072 psi | 90% | 2621 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 55,405 psi | 89% | 2651 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 53,026 psi | 85% | 2598 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 55,970 psi | 90% | 2677 fps | 100% |
| Rottweil R 901 | <<locked>> | 82% | 53,563 psi | 86% | 2448 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 56,420 psi | 90% | 2510 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 55,361 psi | 89% | 2546 fps | 100% |
| Rottweil R 904ᴾ | <<locked>> | 100% | 53,432 psi | 86% | 2536 fps | 96.1% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 49,240 psi | 79% | 2533 fps | 96.8% |
| Rottweil R 907 | <<locked>> | 94% | 55,303 psi | 89% | 2533 fps | 98.5% |
| Shooters World Long Rifle | <<locked>> | 94% | 53,548 psi | 86% | 2513 fps | 99.4% |
| Shooters World Match Rifle | <<locked>> | 84% | 53,722 psi | 86% | 2497 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 54,157 psi | 87% | 2500 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 54,186 psi | 87% | 2543 fps | 98.9% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 53,505 psi | 86% | 2559 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 54,969 psi | 88% | 2526 fps | 99.8% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 55,477 psi | 89% | 2539 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 53,911 psi | 86% | 2408 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 54,331 psi | 87% | 2411 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 53,359 psi | 86% | 2467 fps | 98.6% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 48,776 psi | 78% | 2526 fps | 96.6% |
| Somchem S335 | <<locked>> | 84% | 53,345 psi | 86% | 2408 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 54,404 psi | 87% | 2513 fps | 100% |
| Somchem S355 | <<locked>> | 92% | 55,753 psi | 89% | 2546 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 54,230 psi | 87% | 2615 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 50,183 psi | 80% | 2520 fps | 97.7% |
| Vihtavuori N133 | <<locked>> | 84% | 54,288 psi | 87% | 2395 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 56,405 psi | 90% | 2474 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 53,505 psi | 86% | 2448 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 53,476 psi | 86% | 2480 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 54,766 psi | 88% | 2559 fps | 99.9% |
| Vihtavuori N530 | <<locked>> | 84% | 56,420 psi | 90% | 2513 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 54,984 psi | 88% | 2490 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 53,896 psi | 86% | 2569 fps | 99.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 46,282 psi | 74% | 2520 fps | 99.8% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 54,781 psi | 88% | 2539 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 53,243 psi | 85% | 2516 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 56,304 psi | 90% | 2628 fps | 99.1% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 37,420 psi | 60% | 2474 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 86% | 55,637 psi | 89% | 2549 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% | 51,561 psi | 83% | 2379 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 44,164 psi | 71% | 2320 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 51,387 psi | 82% | 2457 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 42,960 psi | 69% | 2306 fps | 95.8% |
| Accurate 3100 | <<locked>> | 94% | 35,824 psi | 57% | 2277 fps | 95.8% |
| Accurate 4064 | <<locked>> | 80% | 41,814 psi | 67% | 2323 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 30,951 psi | 50% | 2182 fps | 95.9% |
| ADI AR 2206H | <<locked>> | 80% | 47,442 psi | 76% | 2428 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 80% | 40,393 psi | 65% | 2297 fps | 98.9% |
| ADI AR 2209 | <<locked>> | 96% | 45,339 psi | 73% | 2457 fps | 95.3% |
| ADI Benchmark 8208 | <<locked>> | 80% | 49,516 psi | 79% | 2428 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 50,618 psi | 81% | 2405 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 43,323 psi | 69% | 2470 fps | 99.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 40,306 psi | 65% | 2320 fps | 99.7% |
| Alliant Reloder-15 | <<locked>> | 80% | 43,091 psi | 69% | 2372 fps | 99.4% |
| Alliant Reloder-16 | <<locked>> | 80% | 31,198 psi | 50% | 2192 fps | 96% |
| Alliant Reloder-17 | 46.8 gr | 80% | 34,824 psi | 56% | 2303 fps | 98.9% |
| Alliant Reloder-19 | <<locked>> | 96% | 44,527 psi | 71% | 2451 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 86% | 27,180 psi | 44% | 2116 fps | 95.8% |
| Alliant Reloder-25 | <<locked>> | 98% | 34,505 psi | 55% | 2310 fps | 95.4% |
| Alliant Reloder-26 | <<locked>> | 90% | 32,953 psi | 53% | 2323 fps | 96% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 46,717 psi | 75% | 2434 fps | 99.5% |
| Bofors RP3 | <<locked>> | 80% | 40,059 psi | 64% | 2323 fps | 99.8% |
| Bofors RP7 | <<locked>> | 84% | 40,814 psi | 65% | 2303 fps | 95.4% |
| Hodgdon Benchmark | <<locked>> | 80% | 51,039 psi | 82% | 2408 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 48,631 psi | 78% | 2451 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 40,785 psi | 65% | 2329 fps | 98.2% |
| Hodgdon H414 | <<locked>> | 84% | 37,927 psi | 61% | 2326 fps | 95.3% |
| Hodgdon H4350 | <<locked>> | 86% | 44,077 psi | 71% | 2395 fps | 95.6% |
| Hodgdon H4895 | <<locked>> | 80% | 47,892 psi | 77% | 2434 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 28,848 psi | 46% | 2106 fps | 96.9% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 44,063 psi | 71% | 2418 fps | 100% |
| Hodgdon Superformance | 53.2 gr | 86% | 39,856 psi | 64% | 2388 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,672 psi | 43% | 1358 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 46,021 psi | 74% | 2392 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 47,979 psi | 77% | 2418 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 42,453 psi | 68% | 2326 fps | 99.4% |
| IMR 4166 Enduron | <<locked>> | 80% | 44,701 psi | 72% | 2343 fps | 97% |
| IMR 4350 | <<locked>> | 88% | 40,959 psi | 66% | 2329 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 82% | 39,813 psi | 64% | 2283 fps | 95.6% |
| IMR 4831 | <<locked>> | 80% | 30,095 psi | 48% | 2146 fps | 95.6% |
| IMR 4895 | <<locked>> | 80% | 44,150 psi | 71% | 2402 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 80% | 49,516 psi | 79% | 2428 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 47,036 psi | 75% | 2408 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 47,181 psi | 76% | 2362 fps | 99.9% |
| Lovex S062 | <<locked>> | 80% | 42,496 psi | 68% | 2326 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 34,838 psi | 56% | 2188 fps | 95.7% |
| Lovex S070 | <<locked>> | 84% | 37,449 psi | 60% | 2264 fps | 95.3% |
| Lovex S071 | <<locked>> | 98% | 34,360 psi | 55% | 2247 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 46,412 psi | 74% | 2379 fps | 100% |
| Norma 202 | <<locked>> | 80% | 46,949 psi | 75% | 2382 fps | 100% |
| Norma 203B | <<locked>> | 80% | 42,453 psi | 68% | 2365 fps | 99.6% |
| Norma 204 | <<locked>> | 92% | 46,253 psi | 74% | 2457 fps | 95.5% |
| Norma MRP | <<locked>> | 94% | 38,159 psi | 61% | 2402 fps | 95% |
| Norma URP | <<locked>> | 80% | 31,256 psi | 50% | 2182 fps | 95.8% |
| Ramshot Big Game | <<locked>> | 80% | 42,090 psi | 67% | 2379 fps | 99.5% |
| Ramshot Hunter | <<locked>> | 84% | 34,766 psi | 56% | 2267 fps | 95.1% |
| Ramshot TAC | <<locked>> | 80% | 49,385 psi | 79% | 2444 fps | 99.1% |
| Ramshot Wild Boar | <<locked>> | 80% | 49,197 psi | 79% | 2461 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,093 psi | 43% | 1394 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 41,017 psi | 66% | 2313 fps | 96.8% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 45,861 psi | 74% | 2474 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 37,028 psi | 59% | 2359 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 30,589 psi | 49% | 2192 fps | 95.3% |
| ReloadSwiss RS 70 | 48.7 gr | 82% | 32,692 psi | 52% | 2247 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 50,647 psi | 81% | 2405 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 44,295 psi | 71% | 2339 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 37,681 psi | 60% | 2274 fps | 99.4% |
| Rottweil R 904 | <<locked>> | 98% | 50,154 psi | 80% | 2487 fps | 95.3% |
| Rottweil R 905 | <<locked>> | 96% | 43,250 psi | 69% | 2431 fps | 95.2% |
| Rottweil R 907 | <<locked>> | 84% | 40,814 psi | 65% | 2303 fps | 95.4% |
| Shooters World Long Rifle | <<locked>> | 80% | 34,838 psi | 56% | 2188 fps | 95.7% |
| Shooters World Match Rifle | <<locked>> | 80% | 47,036 psi | 75% | 2408 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 42,496 psi | 68% | 2326 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 37,449 psi | 60% | 2264 fps | 95.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 38,711 psi | 62% | 2323 fps | 99.1% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 47,979 psi | 77% | 2425 fps | 99.3% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 46,006 psi | 74% | 2402 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 47,790 psi | 77% | 2326 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 39,943 psi | 64% | 2215 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 38,696 psi | 62% | 2234 fps | 95.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 42,859 psi | 69% | 2428 fps | 95.1% |
| Somchem S335 | <<locked>> | 80% | 47,239 psi | 76% | 2326 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 47,601 psi | 76% | 2418 fps | 99.9% |
| Somchem S355 | <<locked>> | 80% | 38,348 psi | 61% | 2277 fps | 99.3% |
| Somchem S365 | <<locked>> | 80% | 28,137 psi | 45% | 2146 fps | 98.1% |
| Somchem S385 | <<locked>> | 94% | 41,234 psi | 66% | 2372 fps | 95.6% |
| Vihtavuori N133 | <<locked>> | 80% | 48,182 psi | 77% | 2316 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 44,092 psi | 71% | 2313 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 44,396 psi | 71% | 2323 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 36,506 psi | 59% | 2218 fps | 99.7% |
| Vihtavuori N160 | <<locked>> | 80% | 32,619 psi | 52% | 2185 fps | 96.3% |
| Vihtavuori N530 | <<locked>> | 80% | 49,763 psi | 80% | 2425 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 42,830 psi | 69% | 2320 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 32,140 psi | 52% | 2188 fps | 95.9% |
| Vihtavuori N555 | <<locked>> | 84% | 27,398 psi | 44% | 2136 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,227 psi | 52% | 2162 fps | 98.2% |
| Winchester 748 | <<locked>> | 80% | 49,719 psi | 80% | 2467 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 37,927 psi | 61% | 2326 fps | 95.3% |
| Winchester StaBALL HD | <<locked>> | 88% | 25,570 psi | 41% | 2136 fps | 95.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 45,426 psi | 73% | 2405 fps | 100% |
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 101 powders for .30-06 Ackley Improved loaded with the .308 | 205gr | Sierra GameKing. ReloadSwiss RS 70 delivers the highest muzzle velocity at 2,677 fps; across all powders the maximum-charge window runs from 1,526 fps to 2,677 fps. Accurate 3100 gives the best case fill at 100 %, and 101 of the 101 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 205.0 gr projectile in 0.308" calls for a 1:13.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, Alliant Reloder-19 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 70, Hodgdon Superformance, Alliant Reloder-17 rank at the top here: for .30-06 Ackley Improved with the .308 | 205gr | Sierra GameKing 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.