Load Specifications
Load data in caliber .30-06 Ackley Improved with .308 | 208gr | Berger Long Range Hybrid Target bullet and 99 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, 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.
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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>> | 84% | 54,911 psi | 88% | 2372 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 53,505 psi | 86% | 2402 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 54,969 psi | 88% | 2457 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 56,057 psi | 90% | 2451 fps | 98% |
| Accurate 3100ᴾ | <<locked>> | 100% | 40,059 psi | 64% | 2316 fps | 96.6% |
| Accurate 4064 | <<locked>> | 90% | 53,447 psi | 86% | 2444 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 56,275 psi | 90% | 2569 fps | 100% |
| ADI AR 2206H | <<locked>> | 86% | 53,809 psi | 86% | 2470 fps | 100% |
| ADI AR 2208 | <<locked>> | 92% | 54,737 psi | 88% | 2470 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 86% | 56,231 psi | 90% | 2467 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 53,809 psi | 86% | 2398 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 53,185 psi | 85% | 2579 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 54,650 psi | 88% | 2490 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 55,405 psi | 89% | 2513 fps | 100% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 54,070 psi | 87% | 2569 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 96% | 55,245 psi | 89% | 2605 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 38,580 psi | 62% | 2346 fps | 99.3% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 42,888 psi | 69% | 2490 fps | 98.7% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 53,476 psi | 86% | 2487 fps | 99.9% |
| Bofors RP3 | <<locked>> | 92% | 55,230 psi | 89% | 2503 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 55,550 psi | 89% | 2484 fps | 98.1% |
| Hodgdon Benchmark | <<locked>> | 84% | 54,636 psi | 88% | 2408 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 55,593 psi | 89% | 2500 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 54,012 psi | 87% | 2543 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 56,144 psi | 90% | 2516 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 98% | 55,564 psi | 89% | 2569 fps | 98.7% |
| Hodgdon H4350 | <<locked>> | 96% | 56,391 psi | 90% | 2533 fps | 97.7% |
| Hodgdon H4895 | <<locked>> | 86% | 54,360 psi | 87% | 2477 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 50,488 psi | 81% | 2461 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 53,679 psi | 86% | 2513 fps | 100% |
| Hodgdon Superformance | <<locked>> | 98% | 56,362 psi | 90% | 2605 fps | 98.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,650 psi | 57% | 1480 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 55,593 psi | 89% | 2480 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 54,346 psi | 87% | 2457 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 54,288 psi | 87% | 2454 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 88% | 54,360 psi | 87% | 2441 fps | 98.4% |
| IMR 4350ᴾ | <<locked>> | 100% | 55,637 psi | 89% | 2507 fps | 98.2% |
| IMR 4451 Enduron | <<locked>> | 94% | 54,056 psi | 87% | 2464 fps | 98.3% |
| IMR 4831ᴾ | <<locked>> | 100% | 53,200 psi | 85% | 2513 fps | 99.9% |
| IMR 4895 | <<locked>> | 88% | 53,476 psi | 86% | 2493 fps | 100% |
| IMR 8208 XBR | <<locked>> | 86% | 56,231 psi | 90% | 2467 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 53,606 psi | 86% | 2451 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 53,534 psi | 86% | 2405 fps | 100% |
| Lovex S062 | <<locked>> | 90% | 54,070 psi | 87% | 2451 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 53,287 psi | 85% | 2461 fps | 99.2% |
| Lovex S070 | <<locked>> | 98% | 54,157 psi | 87% | 2493 fps | 98.6% |
| Norma 201 | <<locked>> | 88% | 56,159 psi | 90% | 2464 fps | 100% |
| Norma 202 | <<locked>> | 86% | 53,200 psi | 85% | 2421 fps | 100% |
| Norma 203B | <<locked>> | 90% | 54,607 psi | 88% | 2500 fps | 100% |
| Norma 204ᴾ | <<locked>> | 100% | 56,086 psi | 90% | 2552 fps | 97.1% |
| Norma MRPᴾ | <<locked>> | 100% | 43,091 psi | 69% | 2451 fps | 96.1% |
| Norma URPᴾ | <<locked>> | 100% | 55,405 psi | 89% | 2556 fps | 99.9% |
| Ramshot Big Game | <<locked>> | 90% | 54,955 psi | 88% | 2523 fps | 100% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 53,969 psi | 87% | 2556 fps | 99.1% |
| Ramshot TAC | <<locked>> | 84% | 53,113 psi | 85% | 2448 fps | 99.3% |
| Ramshot Wild Boar | <<locked>> | 86% | 56,333 psi | 90% | 2510 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 53,664 psi | 86% | 2428 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,056 psi | 58% | 1516 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 55,854 psi | 90% | 2448 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 53,258 psi | 85% | 2461 fps | 98.7% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 55,695 psi | 89% | 2569 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 55,056 psi | 88% | 2598 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 55,883 psi | 90% | 2589 fps | 99.9% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 55,695 psi | 89% | 2618 fps | 99.8% |
| Rottweil R 901 | <<locked>> | 84% | 53,766 psi | 86% | 2402 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 53,142 psi | 85% | 2421 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 55,027 psi | 88% | 2497 fps | 100% |
| Rottweil R 907 | <<locked>> | 96% | 55,550 psi | 89% | 2484 fps | 98.1% |
| Shooters World Long Rifle | <<locked>> | 96% | 53,287 psi | 85% | 2461 fps | 99.2% |
| Shooters World Match Rifle | <<locked>> | 86% | 53,606 psi | 86% | 2451 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 54,070 psi | 87% | 2451 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 54,157 psi | 87% | 2493 fps | 98.6% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 53,417 psi | 86% | 2510 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 55,187 psi | 88% | 2477 fps | 99.7% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 55,550 psi | 89% | 2490 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 54,273 psi | 87% | 2365 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 54,230 psi | 87% | 2365 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 53,548 psi | 86% | 2418 fps | 98.2% |
| Somchem S321 | <<locked>> | 82% | 54,041 psi | 87% | 2457 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 53,780 psi | 86% | 2365 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 54,578 psi | 88% | 2464 fps | 100% |
| Somchem S355 | <<locked>> | 94% | 55,506 psi | 89% | 2497 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 49,821 psi | 80% | 2513 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 46,267 psi | 74% | 2411 fps | 96.5% |
| Vihtavuori N130 | <<locked>> | 82% | 54,244 psi | 87% | 2329 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 54,520 psi | 87% | 2349 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 56,391 psi | 90% | 2428 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 53,780 psi | 86% | 2405 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 53,403 psi | 86% | 2431 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 54,404 psi | 87% | 2507 fps | 99.8% |
| Vihtavuori N530 | <<locked>> | 84% | 53,461 psi | 86% | 2428 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 55,129 psi | 88% | 2444 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 53,374 psi | 86% | 2513 fps | 99.7% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 42,119 psi | 68% | 2411 fps | 99.2% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 54,795 psi | 88% | 2490 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 53,127 psi | 85% | 2467 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 55,869 psi | 90% | 2572 fps | 98.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 34,476 psi | 55% | 2356 fps | 99.3% |
| Winchester StaBALL Match | <<locked>> | 88% | 55,477 psi | 89% | 2500 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% | 48,486 psi | 78% | 2293 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 41,191 psi | 66% | 2238 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 48,283 psi | 77% | 2372 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 43,323 psi | 69% | 2264 fps | 95.4% |
| Accurate 3100 | <<locked>> | 96% | 35,114 psi | 56% | 2224 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 38,986 psi | 63% | 2238 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 30,574 psi | 49% | 2139 fps | 95.4% |
| ADI AR 2206H | <<locked>> | 80% | 44,643 psi | 72% | 2336 fps | 99.6% |
| ADI AR 2208 | <<locked>> | 80% | 38,029 psi | 61% | 2208 fps | 98.2% |
| ADI Benchmark 8208 | <<locked>> | 80% | 46,702 psi | 75% | 2339 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 47,239 psi | 76% | 2320 fps | 100% |
| Alliant Power Pro 2000-MR | 43.9 gr | 80% | 40,509 psi | 65% | 2369 fps | 98.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 37,811 psi | 61% | 2231 fps | 99.3% |
| Alliant Reloder-15 | <<locked>> | 80% | 40,364 psi | 65% | 2283 fps | 98.8% |
| Alliant Reloder-16 | <<locked>> | 82% | 31,314 psi | 50% | 2149 fps | 95.6% |
| Alliant Reloder-17 | 43.2 gr | 80% | 32,387 psi | 52% | 2205 fps | 97.9% |
| Alliant Reloder-23 | <<locked>> | 88% | 26,977 psi | 43% | 2070 fps | 95.2% |
| Alliant Reloder-26 | <<locked>> | 92% | 32,692 psi | 52% | 2270 fps | 95.2% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 43,903 psi | 70% | 2346 fps | 99% |
| Bofors RP3 | <<locked>> | 80% | 37,347 psi | 60% | 2234 fps | 99.3% |
| Bofors RP7 | <<locked>> | 88% | 43,323 psi | 69% | 2300 fps | 95.7% |
| Hodgdon Benchmark | <<locked>> | 80% | 48,530 psi | 78% | 2326 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 45,513 psi | 73% | 2362 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 50,473 psi | 81% | 2493 fps | 99.9% |
| Hodgdon H380 | <<locked>> | 80% | 38,072 psi | 61% | 2234 fps | 97.3% |
| Hodgdon H414 | <<locked>> | 88% | 40,016 psi | 64% | 2323 fps | 95.6% |
| Hodgdon H4350 | <<locked>> | 88% | 43,787 psi | 70% | 2343 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 45,063 psi | 72% | 2346 fps | 99.9% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 26,890 psi | 43% | 2018 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 41,162 psi | 66% | 2326 fps | 99.8% |
| Hodgdon Superformance | 51.4 gr | 90% | 42,496 psi | 68% | 2388 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,513 psi | 43% | 1319 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 43,294 psi | 69% | 2303 fps | 99.7% |
| IMR 3031 | <<locked>> | 80% | 44,773 psi | 72% | 2333 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 39,929 psi | 64% | 2234 fps | 98.8% |
| IMR 4166 Enduron | <<locked>> | 80% | 42,308 psi | 68% | 2254 fps | 96% |
| IMR 4350 | <<locked>> | 92% | 43,453 psi | 70% | 2326 fps | 95.8% |
| IMR 4451 Enduron | <<locked>> | 84% | 39,929 psi | 64% | 2238 fps | 95.2% |
| IMR 4831 | <<locked>> | 82% | 29,791 psi | 48% | 2103 fps | 95.1% |
| IMR 4895 | <<locked>> | 80% | 41,365 psi | 66% | 2306 fps | 99.3% |
| IMR 8208 XBR | <<locked>> | 80% | 46,702 psi | 75% | 2339 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 43,888 psi | 70% | 2316 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 44,744 psi | 72% | 2277 fps | 99.6% |
| Lovex S062 | <<locked>> | 80% | 39,885 psi | 64% | 2238 fps | 99.7% |
| Lovex S065 | <<locked>> | 82% | 34,766 psi | 56% | 2146 fps | 95.2% |
| Lovex S070 | <<locked>> | 88% | 39,827 psi | 64% | 2264 fps | 95.7% |
| Norma 201 | <<locked>> | 80% | 43,772 psi | 70% | 2293 fps | 100% |
| Norma 202 | <<locked>> | 80% | 44,251 psi | 71% | 2300 fps | 100% |
| Norma 203B | <<locked>> | 80% | 39,755 psi | 64% | 2270 fps | 99.1% |
| Norma 204 | <<locked>> | 96% | 49,197 psi | 79% | 2454 fps | 95.7% |
| Norma MRP | <<locked>> | 98% | 40,248 psi | 65% | 2398 fps | 95.2% |
| Norma URP | <<locked>> | 82% | 31,082 psi | 50% | 2139 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 80% | 39,218 psi | 63% | 2287 fps | 98.9% |
| Ramshot Hunter | <<locked>> | 88% | 36,724 psi | 59% | 2267 fps | 95.4% |
| Ramshot TAC | <<locked>> | 80% | 46,717 psi | 75% | 2352 fps | 98.4% |
| Ramshot Wild Boar | <<locked>> | 80% | 46,267 psi | 74% | 2369 fps | 99.8% |
| Ramshot X-Terminator | <<locked>> | 80% | 50,328 psi | 81% | 2382 fps | 99.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,963 psi | 43% | 1355 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 52,257 psi | 84% | 2405 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 38,580 psi | 62% | 2221 fps | 95.7% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 42,569 psi | 68% | 2375 fps | 99.2% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 34,461 psi | 55% | 2260 fps | 99.9% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 32,532 psi | 52% | 2201 fps | 95.7% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 34,853 psi | 56% | 2251 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 80% | 47,979 psi | 77% | 2323 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 41,887 psi | 67% | 2254 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 80% | 35,172 psi | 56% | 2185 fps | 98.7% |
| Rottweil R 907 | <<locked>> | 88% | 43,323 psi | 69% | 2300 fps | 95.7% |
| Shooters World Long Rifle | <<locked>> | 82% | 34,766 psi | 56% | 2146 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 43,888 psi | 70% | 2316 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 39,885 psi | 64% | 2238 fps | 99.7% |
| Shooters World SW4350 | <<locked>> | 88% | 39,827 psi | 64% | 2264 fps | 95.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 36,071 psi | 58% | 2231 fps | 98.3% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 44,846 psi | 72% | 2326 fps | 98.6% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 43,236 psi | 69% | 2313 fps | 99.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 45,266 psi | 73% | 2244 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 37,652 psi | 60% | 2133 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 38,667 psi | 62% | 2188 fps | 95% |
| Somchem S321 | <<locked>> | 80% | 50,604 psi | 81% | 2411 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 44,701 psi | 72% | 2247 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 44,730 psi | 72% | 2326 fps | 99.6% |
| Somchem S355 | <<locked>> | 80% | 35,926 psi | 58% | 2188 fps | 98.7% |
| Somchem S365 | <<locked>> | 80% | 26,121 psi | 42% | 2051 fps | 96.8% |
| Somchem S385 | <<locked>> | 98% | 43,439 psi | 70% | 2365 fps | 95.7% |
| Vihtavuori N130 | <<locked>> | 80% | 51,024 psi | 82% | 2290 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 45,585 psi | 73% | 2238 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 41,307 psi | 66% | 2231 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 41,829 psi | 67% | 2241 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 34,229 psi | 55% | 2136 fps | 99.3% |
| Vihtavuori N160 | <<locked>> | 82% | 32,532 psi | 52% | 2142 fps | 95.9% |
| Vihtavuori N530 | <<locked>> | 80% | 46,920 psi | 75% | 2336 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 40,132 psi | 64% | 2234 fps | 100% |
| Vihtavuori N550 | <<locked>> | 82% | 31,908 psi | 51% | 2142 fps | 95.4% |
| Vihtavuori N555 | <<locked>> | 88% | 28,761 psi | 46% | 2136 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 30,327 psi | 49% | 2077 fps | 97.2% |
| Winchester 748 | <<locked>> | 80% | 46,630 psi | 75% | 2379 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 40,292 psi | 65% | 2326 fps | 95.6% |
| Winchester StaBALL HD | <<locked>> | 92% | 26,905 psi | 43% | 2136 fps | 95.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 42,699 psi | 68% | 2316 fps | 99.7% |
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 99 powders for .30-06 Ackley Improved loaded with the .308 | 208gr | Berger Long Range Hybrid Target. ReloadSwiss RS 70 delivers the highest muzzle velocity at 2,618 fps; across all powders the maximum-charge window runs from 1,480 fps to 2,618 fps. Accurate 3100 gives the best case fill at 100 %, and 99 of the 99 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 208.0 gr projectile in 0.308" calls for a 1:10.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate 4350, Alliant Reloder-16 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, Hodgdon Superformance, Alliant Reloder-17 rank at the top here: for .30-06 Ackley Improved with the .308 | 208gr | Berger Long Range Hybrid Target 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.