Load Specifications
Bullet Manufacturer:Winchester
Bullet Weight:220 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:1:6.0
Load data in caliber .30-06 Ackley Improved with .308 | 220gr | Winchester Silvertip bullet and 105 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, ReloadSwiss RS 70 and Hodgdon Superformance.
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 2495 | <<locked>> | 82% | 53,214 psi | 85% | 2362 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 54,476 psi | 87% | 2428 fps | 99% |
| Accurate 3100ᴾ | <<locked>> | 100% | 51,097 psi | 82% | 2467 fps | 99.7% |
| Accurate 4064 | <<locked>> | 84% | 53,388 psi | 86% | 2411 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 53,766 psi | 86% | 2513 fps | 100% |
| Accurate High Countryᴾ | <<locked>> | 100% | 55,854 psi | 90% | 2648 fps | 98.2% |
| Accurate MAGPROᴾ | <<locked>> | 100% | 52,794 psi | 85% | 2592 fps | 96.3% |
| ADI AR 2206H | <<locked>> | 82% | 55,927 psi | 90% | 2480 fps | 100% |
| ADI AR 2208 | <<locked>> | 86% | 53,708 psi | 86% | 2441 fps | 100% |
| ADI AR 2209 | <<locked>> | 98% | 54,621 psi | 88% | 2549 fps | 98.6% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 52,112 psi | 84% | 2543 fps | 97% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 56,391 psi | 90% | 2602 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 98% | 54,578 psi | 88% | 2546 fps | 98.6% |
| Alliant Power Pro Varmint | <<locked>> | 98% | 54,578 psi | 88% | 2546 fps | 98.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 54,404 psi | 87% | 2464 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 54,592 psi | 88% | 2480 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 94% | 54,491 psi | 87% | 2559 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 90% | 55,724 psi | 89% | 2582 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 53,795 psi | 86% | 2539 fps | 98.6% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 50,720 psi | 81% | 2539 fps | 98.3% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 47,993 psi | 77% | 2484 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 42,018 psi | 67% | 2421 fps | 99.2% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 54,665 psi | 88% | 2654 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 55,724 psi | 89% | 2500 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 46,543 psi | 75% | 2474 fps | 97.3% |
| Bofors RP3 | <<locked>> | 86% | 55,172 psi | 88% | 2480 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 50,720 psi | 81% | 2539 fps | 98.3% |
| Bofors RP7 | <<locked>> | 90% | 54,592 psi | 88% | 2467 fps | 99.2% |
| Hodgdon H380 | <<locked>> | 86% | 55,463 psi | 89% | 2493 fps | 100% |
| Hodgdon H414 | <<locked>> | 92% | 55,970 psi | 90% | 2559 fps | 99.7% |
| Hodgdon H4350 | <<locked>> | 90% | 56,086 psi | 90% | 2523 fps | 99% |
| Hodgdon H4831ᴾ | <<locked>> | 100% | 55,927 psi | 90% | 2546 fps | 97.1% |
| Hodgdon H4831 SCᴾ | <<locked>> | 100% | 54,694 psi | 88% | 2526 fps | 96.9% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 54,795 psi | 88% | 2490 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 53,127 psi | 85% | 2477 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 41,017 psi | 66% | 2444 fps | 96.5% |
| Hodgdon Superformance | <<locked>> | 92% | 56,014 psi | 90% | 2595 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,260 psi | 58% | 1499 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 54,215 psi | 87% | 2444 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 53,388 psi | 86% | 2428 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 55,825 psi | 90% | 2457 fps | 99.6% |
| IMR 4350 | <<locked>> | 94% | 55,143 psi | 88% | 2497 fps | 99.3% |
| IMR 4451 Enduron | <<locked>> | 90% | 56,115 psi | 90% | 2490 fps | 99.6% |
| IMR 4831 | <<locked>> | 94% | 54,157 psi | 87% | 2503 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 55,970 psi | 90% | 2503 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 54,230 psi | 87% | 2487 fps | 97% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 49,559 psi | 79% | 2516 fps | 96.6% |
| Lovex D073.6 | <<locked>> | 82% | 56,333 psi | 90% | 2454 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 54,882 psi | 88% | 2411 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 53,534 psi | 86% | 2421 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 56,246 psi | 90% | 2487 fps | 100% |
| Lovex S070 | <<locked>> | 92% | 54,070 psi | 87% | 2480 fps | 99.6% |
| Lovex S071ᴾ | <<locked>> | 100% | 42,612 psi | 68% | 2339 fps | 98.7% |
| Norma 201 | <<locked>> | 82% | 54,868 psi | 88% | 2428 fps | 100% |
| Norma 202 | <<locked>> | 82% | 55,303 psi | 89% | 2421 fps | 100% |
| Norma 203B | <<locked>> | 84% | 53,882 psi | 86% | 2470 fps | 100% |
| Norma 204 | <<locked>> | 94% | 56,028 psi | 90% | 2546 fps | 98.7% |
| Norma MRPᴾ | <<locked>> | 100% | 53,911 psi | 86% | 2618 fps | 99.6% |
| Norma URP | <<locked>> | 94% | 55,869 psi | 90% | 2543 fps | 100% |
| Ramshot Big Game | <<locked>> | 84% | 54,578 psi | 88% | 2497 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 49,893 psi | 80% | 2533 fps | 97% |
| Ramshot Hunter | <<locked>> | 94% | 54,795 psi | 88% | 2549 fps | 99.9% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 44,266 psi | 71% | 2421 fps | 97.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,941 psi | 59% | 1539 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 55,593 psi | 89% | 2484 fps | 99.8% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 55,506 psi | 89% | 2539 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 55,143 psi | 88% | 2569 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 53,432 psi | 86% | 2533 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 55,695 psi | 89% | 2608 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 40,698 psi | 65% | 2438 fps | 97.4% |
| Rottweil R 902 | <<locked>> | 84% | 55,347 psi | 89% | 2428 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 55,085 psi | 88% | 2470 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 52,939 psi | 85% | 2474 fps | 97.3% |
| Rottweil R 905 | <<locked>> | 98% | 53,069 psi | 85% | 2526 fps | 98.6% |
| Rottweil R 907 | <<locked>> | 90% | 54,592 psi | 88% | 2467 fps | 99.2% |
| Shooters World Long Rifle | <<locked>> | 92% | 56,246 psi | 90% | 2487 fps | 100% |
| Shooters World Match Rifle | <<locked>> | 82% | 56,333 psi | 90% | 2454 fps | 100% |
| Shooters World Precision | <<locked>> | 84% | 53,534 psi | 86% | 2421 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 54,070 psi | 87% | 2480 fps | 99.6% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 53,200 psi | 85% | 2484 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 54,331 psi | 87% | 2457 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 55,709 psi | 89% | 2362 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 52,982 psi | 85% | 2326 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 56,014 psi | 90% | 2448 fps | 99.6% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 55,970 psi | 90% | 2569 fps | 98.9% |
| Somchem S335 | <<locked>> | 82% | 55,390 psi | 89% | 2365 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 55,288 psi | 89% | 2470 fps | 100% |
| Somchem S361 | <<locked>> | 96% | 54,433 psi | 87% | 2470 fps | 96.8% |
| Somchem S365 | <<locked>> | 96% | 54,882 psi | 88% | 2543 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 53,548 psi | 86% | 2503 fps | 99.1% |
| Vihtavuori N133 | <<locked>> | 82% | 56,202 psi | 90% | 2346 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 55,695 psi | 89% | 2388 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 56,014 psi | 90% | 2405 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 56,434 psi | 90% | 2444 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 54,781 psi | 88% | 2493 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 49,472 psi | 79% | 2438 fps | 98.3% |
| Vihtavuori N540 | <<locked>> | 84% | 54,056 psi | 87% | 2405 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 53,563 psi | 86% | 2497 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 53,679 psi | 86% | 2549 fps | 100% |
| Vihtavuori N560ᴾ | <<locked>> | 100% | 54,433 psi | 87% | 2608 fps | 97.3% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 54,114 psi | 87% | 2464 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 55,970 psi | 90% | 2559 fps | 99.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 43,163 psi | 69% | 2536 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 54,534 psi | 87% | 2464 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 53,548 psi | 86% | 2500 fps | 98.4% |
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 2495 | <<locked>> | 80% | 49,835 psi | 80% | 2323 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 47,776 psi | 77% | 2333 fps | 98.1% |
| Accurate 3100 | <<locked>> | 86% | 31,923 psi | 51% | 2136 fps | 95.7% |
| Accurate 4064 | <<locked>> | 80% | 47,210 psi | 76% | 2329 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 35,824 psi | 57% | 2224 fps | 98.6% |
| Accurate High Country | <<locked>> | 92% | 42,221 psi | 68% | 2431 fps | 95.2% |
| Accurate MAGPRO | <<locked>> | 98% | 49,385 psi | 79% | 2539 fps | 95.6% |
| ADI AR 2206H | <<locked>> | 80% | 52,765 psi | 85% | 2438 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 44,860 psi | 72% | 2313 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 88% | 39,682 psi | 64% | 2303 fps | 95.2% |
| ADI AR 2213 | <<locked>> | 96% | 45,687 psi | 73% | 2438 fps | 95.4% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 48,892 psi | 78% | 2497 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 39,740 psi | 64% | 2303 fps | 95.4% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 39,740 psi | 64% | 2303 fps | 95.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 45,179 psi | 72% | 2333 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 48,327 psi | 77% | 2392 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 35,085 psi | 56% | 2231 fps | 98.7% |
| Alliant Reloder-17 | <<locked>> | 80% | 39,552 psi | 63% | 2339 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 39,305 psi | 63% | 2300 fps | 95.3% |
| Alliant Reloder-22 | <<locked>> | 92% | 39,073 psi | 63% | 2339 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 80% | 25,643 psi | 41% | 2024 fps | 96.6% |
| Alliant Reloder-25 | <<locked>> | 90% | 30,835 psi | 49% | 2172 fps | 95.6% |
| Alliant Reloder-26 | 52.2 gr | 82% | 29,037 psi | 47% | 2169 fps | 95.8% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 52,388 psi | 84% | 2454 fps | 100% |
| Bofors RP15 | <<locked>> | 94% | 38,551 psi | 62% | 2326 fps | 95% |
| Bofors RP3 | <<locked>> | 80% | 45,368 psi | 73% | 2343 fps | 100% |
| Bofors RP5 | <<locked>> | 92% | 39,073 psi | 63% | 2339 fps | 95.4% |
| Bofors RP7 | <<locked>> | 80% | 40,118 psi | 64% | 2234 fps | 96.6% |
| Hodgdon H380 | <<locked>> | 80% | 45,745 psi | 73% | 2352 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 80% | 37,739 psi | 61% | 2264 fps | 96.7% |
| Hodgdon H4350 | <<locked>> | 80% | 40,814 psi | 65% | 2280 fps | 96.1% |
| Hodgdon H4831 | <<locked>> | 96% | 48,965 psi | 79% | 2444 fps | 95.7% |
| Hodgdon H4831 SC | <<locked>> | 96% | 47,921 psi | 77% | 2428 fps | 95.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 32,619 psi | 52% | 2139 fps | 99.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 49,835 psi | 80% | 2431 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 38,493 psi | 62% | 2388 fps | 95.4% |
| Hodgdon Superformance | 52.5 gr | 80% | 36,579 psi | 59% | 2270 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,282 psi | 44% | 1342 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 50,879 psi | 82% | 2398 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 47,181 psi | 76% | 2339 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 49,284 psi | 79% | 2365 fps | 98.9% |
| IMR 4350 | <<locked>> | 80% | 35,781 psi | 57% | 2172 fps | 95.3% |
| IMR 4451 Enduron | <<locked>> | 80% | 41,466 psi | 66% | 2260 fps | 97.4% |
| IMR 4831 | <<locked>> | 80% | 34,389 psi | 55% | 2178 fps | 98.3% |
| IMR 4895 | <<locked>> | 80% | 49,574 psi | 79% | 2418 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 47,863 psi | 77% | 2392 fps | 95.6% |
| IMR 7828 SSC | <<locked>> | 96% | 43,671 psi | 70% | 2415 fps | 95% |
| Lovex D073.6 | <<locked>> | 80% | 52,794 psi | 85% | 2411 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 51,851 psi | 83% | 2369 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 47,384 psi | 76% | 2336 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 38,972 psi | 62% | 2218 fps | 98.1% |
| Lovex S070 | <<locked>> | 80% | 37,173 psi | 60% | 2201 fps | 96.6% |
| Lovex S071 | <<locked>> | 90% | 31,067 psi | 50% | 2116 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 51,474 psi | 83% | 2385 fps | 100% |
| Norma 202 | <<locked>> | 80% | 52,156 psi | 84% | 2382 fps | 100% |
| Norma 203B | <<locked>> | 80% | 47,688 psi | 76% | 2382 fps | 100% |
| Norma 204 | <<locked>> | 84% | 39,929 psi | 64% | 2290 fps | 95.2% |
| Norma MRP | <<locked>> | 88% | 35,998 psi | 58% | 2303 fps | 95.9% |
| Norma URP | <<locked>> | 80% | 35,592 psi | 57% | 2215 fps | 98.4% |
| Ramshot Big Game | <<locked>> | 80% | 47,543 psi | 76% | 2398 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 43,308 psi | 69% | 2418 fps | 95.2% |
| Ramshot Hunter | <<locked>> | 80% | 34,548 psi | 55% | 2208 fps | 96.5% |
| Ramshot Magnum | <<locked>> | 96% | 38,406 psi | 62% | 2313 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,746 psi | 44% | 1375 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 45,861 psi | 74% | 2339 fps | 98.9% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 51,909 psi | 83% | 2493 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 42,047 psi | 67% | 2385 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 35,360 psi | 57% | 2238 fps | 98.2% |
| ReloadSwiss RS 70 | 50.4 gr | 80% | 34,461 psi | 55% | 2241 fps | 97.6% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 35,389 psi | 57% | 2316 fps | 95.2% |
| Rottweil R 902 | <<locked>> | 80% | 49,240 psi | 79% | 2346 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 42,583 psi | 68% | 2297 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 43,859 psi | 70% | 2333 fps | 95.2% |
| Rottweil R 905 | <<locked>> | 88% | 38,203 psi | 61% | 2280 fps | 95.2% |
| Rottweil R 907 | <<locked>> | 80% | 40,118 psi | 64% | 2234 fps | 96.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 38,972 psi | 62% | 2218 fps | 98.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 52,794 psi | 85% | 2411 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 47,384 psi | 76% | 2336 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 37,173 psi | 60% | 2201 fps | 96.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 43,671 psi | 70% | 2343 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 51,082 psi | 82% | 2411 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 52,504 psi | 84% | 2323 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 44,280 psi | 71% | 2215 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 38,232 psi | 61% | 2172 fps | 96.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 37,840 psi | 61% | 2277 fps | 95% |
| Somchem S335 | <<locked>> | 80% | 52,069 psi | 83% | 2323 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 43,047 psi | 69% | 2297 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 47,819 psi | 77% | 2375 fps | 95.3% |
| Somchem S365 | <<locked>> | 80% | 32,169 psi | 52% | 2182 fps | 99.8% |
| Somchem S385 | <<locked>> | 86% | 36,492 psi | 59% | 2224 fps | 95.5% |
| Vihtavuori N133 | <<locked>> | 80% | 53,011 psi | 85% | 2310 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 49,356 psi | 79% | 2313 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 49,327 psi | 79% | 2323 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 41,002 psi | 66% | 2234 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 37,173 psi | 60% | 2218 fps | 98.7% |
| Vihtavuori N165 | <<locked>> | 92% | 38,247 psi | 61% | 2251 fps | 95.6% |
| Vihtavuori N540 | <<locked>> | 80% | 47,688 psi | 76% | 2323 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 36,564 psi | 59% | 2221 fps | 98.4% |
| Vihtavuori N555 | <<locked>> | 80% | 27,978 psi | 45% | 2087 fps | 96.7% |
| Vihtavuori N560 | <<locked>> | 96% | 47,543 psi | 76% | 2500 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 36,245 psi | 58% | 2192 fps | 99.8% |
| Winchester 760 | <<locked>> | 80% | 37,739 psi | 61% | 2264 fps | 96.7% |
| Winchester StaBALL HD | <<locked>> | 82% | 24,091 psi | 39% | 2047 fps | 96.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 50,908 psi | 82% | 2418 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 40,828 psi | 65% | 2300 fps | 95.6% |
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 105 powders for .30-06 Ackley Improved loaded with the .308 | 220gr | Winchester Silvertip. Alliant Reloder-26 delivers the highest muzzle velocity at 2,654 fps; across all powders the maximum-charge window runs from 1,499 fps to 2,654 fps. Accurate 3100 gives the best case fill at 100 %, and 105 of the 105 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 220.0 gr projectile in 0.308" calls for a 1:6.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate High Country, Accurate MAGPRO 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-26, ReloadSwiss RS 70, Hodgdon Superformance rank at the top here: for .30-06 Ackley Improved with the .308 | 220gr | Winchester Silvertip 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.