Load Specifications
Load data in caliber .308 Win. Ackley Improved with .308 | 170gr | Sako Powerhead Blade bullet and 86 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon CFE223, Alliant Power Pro 1200-R and Winchester 748.
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 1680 | <<locked>> | 82% | 52,315 psi | 87% | 2457 fps | 100% |
| Accurate 2015 | <<locked>> | 94% | 51,256 psi | 85% | 2520 fps | 100% |
| Accurate 2200 | <<locked>> | 86% | 52,953 psi | 88% | 2598 fps | 97.5% |
| Accurate 2230 | <<locked>> | 86% | 52,997 psi | 88% | 2605 fps | 97.8% |
| Accurate 2460 | <<locked>> | 92% | 53,084 psi | 88% | 2582 fps | 100% |
| Accurate 2495ᴾ | <<locked>> | 100% | 49,313 psi | 82% | 2556 fps | 100% |
| Accurate 2520 | <<locked>> | 96% | 53,824 psi | 89% | 2628 fps | 99.9% |
| Accurate 4064ᴾ | <<locked>> | 100% | 45,701 psi | 76% | 2539 fps | 99.9% |
| Accurate LT-30 | <<locked>> | 88% | 53,534 psi | 89% | 2484 fps | 100% |
| Accurate LT-32 | <<locked>> | 88% | 54,012 psi | 90% | 2500 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 98% | 53,606 psi | 89% | 2628 fps | 98.4% |
| ADI AR 2207 | <<locked>> | 86% | 53,838 psi | 89% | 2503 fps | 100% |
| ADI AR 2208ᴾ | <<locked>> | 100% | 48,269 psi | 80% | 2523 fps | 96.7% |
| ADI AR 2219 | <<locked>> | 88% | 52,576 psi | 87% | 2589 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 96% | 53,214 psi | 88% | 2592 fps | 99.2% |
| Alliant AR-Comp | <<locked>> | 96% | 51,213 psi | 85% | 2585 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 90% | 50,850 psi | 84% | 2638 fps | 98.6% |
| Alliant Power Pro 2000-MRᴾ | <<locked>> | 100% | 53,519 psi | 89% | 2713 fps | 97.4% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 45,963 psi | 76% | 2536 fps | 98% |
| Alliant Reloder-10x | <<locked>> | 90% | 51,808 psi | 86% | 2536 fps | 100% |
| Alliant Reloder-15ᴾ | <<locked>> | 100% | 50,386 psi | 84% | 2602 fps | 97.4% |
| Alliant Reloder-7 | <<locked>> | 84% | 51,895 psi | 86% | 2477 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 88% | 52,112 psi | 87% | 2484 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 98% | 53,229 psi | 88% | 2635 fps | 97.3% |
| Bofors RP3ᴾ | <<locked>> | 100% | 45,672 psi | 76% | 2546 fps | 98.1% |
| Hodgdon Benchmark | <<locked>> | 94% | 53,055 psi | 88% | 2546 fps | 99.4% |
| Hodgdon BL-C2 | <<locked>> | 96% | 51,213 psi | 85% | 2618 fps | 99.4% |
| Hodgdon CFE223 | <<locked>> | 94% | 53,447 psi | 89% | 2700 fps | 97.9% |
| Hodgdon H322 | <<locked>> | 92% | 54,259 psi | 90% | 2612 fps | 100% |
| Hodgdon H335 | <<locked>> | 90% | 51,837 psi | 86% | 2589 fps | 100% |
| Hodgdon H4198 | <<locked>> | 84% | 52,460 psi | 87% | 2487 fps | 100% |
| Hodgdon H4895 | <<locked>> | 98% | 53,940 psi | 90% | 2638 fps | 98.9% |
| Hodgdon LEVERevolutionᴾ | <<locked>> | 100% | 51,909 psi | 86% | 2657 fps | 99% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,127 psi | 55% | 1519 fps | 100% |
| Hodgdon VARGET | <<locked>> | 98% | 52,678 psi | 88% | 2598 fps | 98.6% |
| IMR 3031 | <<locked>> | 98% | 51,996 psi | 86% | 2635 fps | 100% |
| IMR 4064ᴾ | <<locked>> | 100% | 50,763 psi | 84% | 2556 fps | 97.4% |
| IMR 4198 | <<locked>> | 90% | 53,026 psi | 88% | 2503 fps | 100% |
| IMR 4895ᴾ | <<locked>> | 100% | 51,547 psi | 86% | 2635 fps | 98.2% |
| IMR 8208 XBR | <<locked>> | 96% | 53,214 psi | 88% | 2592 fps | 99.2% |
| Lovex D073.4 | <<locked>> | 86% | 53,563 psi | 89% | 2592 fps | 99.9% |
| Lovex D073.5 | <<locked>> | 92% | 53,229 psi | 88% | 2589 fps | 99.6% |
| Lovex D073.6 | <<locked>> | 98% | 51,213 psi | 85% | 2605 fps | 99.8% |
| Lovex S053 | <<locked>> | 82% | 54,259 psi | 90% | 2411 fps | 100% |
| Lovex S060 | <<locked>> | 96% | 51,605 psi | 86% | 2523 fps | 98% |
| Lovex S062ᴾ | <<locked>> | 100% | 49,458 psi | 82% | 2556 fps | 98.8% |
| Norma 200 | <<locked>> | 86% | 51,387 psi | 85% | 2507 fps | 100% |
| Norma 201 | <<locked>> | 98% | 52,112 psi | 87% | 2579 fps | 99.1% |
| Norma 202 | <<locked>> | 98% | 52,228 psi | 87% | 2592 fps | 100% |
| Norma 203Bᴾ | <<locked>> | 100% | 49,385 psi | 82% | 2592 fps | 97.8% |
| Ramshot Big Gameᴾ | <<locked>> | 100% | 50,241 psi | 83% | 2615 fps | 97.6% |
| Ramshot Wild Boar | <<locked>> | 96% | 52,649 psi | 87% | 2621 fps | 98.2% |
| Ramshot X-Terminator | <<locked>> | 92% | 52,098 psi | 87% | 2552 fps | 97.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,228 psi | 55% | 1558 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 92% | 53,476 psi | 89% | 2592 fps | 99.8% |
| ReloadSwiss RS 52ᴾ | <<locked>> | 100% | 53,316 psi | 89% | 2710 fps | 97.9% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 44,135 psi | 73% | 2582 fps | 99% |
| Rottweil R 901 | <<locked>> | 96% | 52,939 psi | 88% | 2572 fps | 100% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 52,112 psi | 87% | 2569 fps | 99.1% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 42,366 psi | 70% | 2480 fps | 97% |
| Shooters World AR Plus | <<locked>> | 86% | 53,563 psi | 89% | 2592 fps | 99.9% |
| Shooters World Match Rifle | <<locked>> | 98% | 51,213 psi | 85% | 2605 fps | 99.8% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 49,458 psi | 82% | 2556 fps | 98.8% |
| Shooters World Tactical Rifle | <<locked>> | 90% | 54,259 psi | 90% | 2566 fps | 99% |
| SNPE Vectan BA6 1/2 | <<locked>> | 84% | 51,808 psi | 86% | 2238 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 88% | 52,794 psi | 88% | 2595 fps | 100% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 45,078 psi | 75% | 2539 fps | 96.6% |
| SNPE Vectan SP 3 | <<locked>> | 90% | 52,721 psi | 88% | 2546 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 96% | 51,692 psi | 86% | 2569 fps | 96% |
| SNPE Vectan SP 9 | <<locked>> | 98% | 51,851 psi | 86% | 2598 fps | 98.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 96% | 51,953 psi | 86% | 2500 fps | 99.9% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 47,630 psi | 79% | 2451 fps | 100% |
| Somchem S321 | <<locked>> | 92% | 51,010 psi | 85% | 2585 fps | 99.1% |
| Somchem S335 | <<locked>> | 98% | 53,780 psi | 89% | 2543 fps | 100% |
| Somchem S341 | <<locked>> | 96% | 50,952 psi | 85% | 2569 fps | 97.8% |
| Somchem S355ᴾ | <<locked>> | 100% | 43,700 psi | 73% | 2490 fps | 97.1% |
| Vihtavuori N120 | <<locked>> | 86% | 53,809 psi | 89% | 2454 fps | 100% |
| Vihtavuori N130 | <<locked>> | 92% | 51,924 psi | 86% | 2484 fps | 100% |
| Vihtavuori N133 | <<locked>> | 96% | 51,474 psi | 86% | 2493 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 50,227 psi | 83% | 2552 fps | 100% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 52,881 psi | 88% | 2575 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 42,279 psi | 70% | 2438 fps | 98% |
| Vihtavuori N530 | <<locked>> | 96% | 54,186 psi | 90% | 2598 fps | 99.3% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 50,734 psi | 84% | 2566 fps | 99.9% |
| Winchester 748 | <<locked>> | 96% | 52,040 psi | 86% | 2635 fps | 99.6% |
| Winchester StaBALL Match | <<locked>> | 98% | 51,068 psi | 85% | 2605 fps | 98.5% |
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 1680 | <<locked>> | 80% | 49,255 psi | 82% | 2418 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 32,750 psi | 54% | 2218 fps | 99.4% |
| Accurate 2200 | <<locked>> | 80% | 43,236 psi | 72% | 2441 fps | 95.4% |
| Accurate 2230 | <<locked>> | 80% | 42,815 psi | 71% | 2444 fps | 95.7% |
| Accurate 2460 | <<locked>> | 80% | 35,215 psi | 59% | 2293 fps | 97.9% |
| Accurate 2495 | <<locked>> | 80% | 24,990 psi | 42% | 2103 fps | 97.8% |
| Accurate 2520 | <<locked>> | 80% | 30,676 psi | 51% | 2231 fps | 96.1% |
| Accurate 4064 | <<locked>> | 82% | 25,353 psi | 42% | 2123 fps | 95.2% |
| Accurate LT-30 | <<locked>> | 80% | 41,727 psi | 69% | 2310 fps | 99.8% |
| Accurate LT-32 | <<locked>> | 80% | 42,134 psi | 70% | 2323 fps | 98.8% |
| ADI AR 2206H | <<locked>> | 88% | 39,146 psi | 65% | 2388 fps | 95.3% |
| ADI AR 2207 | <<locked>> | 80% | 44,962 psi | 75% | 2385 fps | 100% |
| ADI AR 2208 | <<locked>> | 96% | 42,786 psi | 71% | 2434 fps | 95.4% |
| ADI AR 2219 | <<locked>> | 80% | 39,900 psi | 66% | 2395 fps | 99.6% |
| ADI Benchmark 8208 | <<locked>> | 82% | 34,185 psi | 57% | 2264 fps | 95.1% |
| Alliant AR-Comp | <<locked>> | 80% | 30,182 psi | 50% | 2241 fps | 100% |
| Alliant Power Pro 1200-R | 33.8 gr | 80% | 36,434 psi | 61% | 2382 fps | 95.3% |
| Alliant Power Pro 2000-MR | <<locked>> | 96% | 46,673 psi | 78% | 2602 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 35,592 psi | 59% | 2349 fps | 95.4% |
| Alliant Reloder-10x | <<locked>> | 80% | 37,869 psi | 63% | 2323 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 41,684 psi | 69% | 2461 fps | 95.4% |
| Alliant Reloder-7 | <<locked>> | 80% | 45,977 psi | 76% | 2395 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 40,335 psi | 67% | 2310 fps | 99.8% |
| Baschieri & Pellagri 107 | <<locked>> | 92% | 43,642 psi | 73% | 2484 fps | 95.1% |
| Bofors RP3 | <<locked>> | 92% | 34,679 psi | 58% | 2346 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 34,606 psi | 57% | 2231 fps | 96% |
| Hodgdon BL-C2 | <<locked>> | 82% | 31,517 psi | 52% | 2267 fps | 95% |
| Hodgdon CFE223 | 40.5 gr | 88% | 43,279 psi | 72% | 2536 fps | 95.7% |
| Hodgdon H322 | <<locked>> | 80% | 36,289 psi | 60% | 2329 fps | 99.1% |
| Hodgdon H335 | <<locked>> | 80% | 36,811 psi | 61% | 2343 fps | 98.4% |
| Hodgdon H4198 | <<locked>> | 80% | 46,064 psi | 77% | 2392 fps | 99.9% |
| Hodgdon H4895 | <<locked>> | 86% | 36,709 psi | 61% | 2349 fps | 95.2% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 37,391 psi | 62% | 2408 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,526 psi | 41% | 1358 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 38,087 psi | 63% | 2356 fps | 95.5% |
| IMR 3031 | <<locked>> | 80% | 28,689 psi | 48% | 2215 fps | 97.9% |
| IMR 4064 | <<locked>> | 94% | 41,930 psi | 70% | 2415 fps | 95.5% |
| IMR 4198 | <<locked>> | 80% | 39,392 psi | 65% | 2306 fps | 100% |
| IMR 4895 | <<locked>> | 92% | 40,089 psi | 67% | 2444 fps | 95.7% |
| IMR 8208 XBR | <<locked>> | 82% | 34,185 psi | 57% | 2264 fps | 95.1% |
| Lovex D073.4 | <<locked>> | 80% | 43,294 psi | 72% | 2441 fps | 98.9% |
| Lovex D073.5 | <<locked>> | 80% | 34,795 psi | 58% | 2287 fps | 96.5% |
| Lovex D073.6 | <<locked>> | 82% | 29,515 psi | 49% | 2218 fps | 95.6% |
| Lovex S053 | <<locked>> | 80% | 51,024 psi | 85% | 2372 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 40,770 psi | 68% | 2346 fps | 95.7% |
| Lovex S062 | <<locked>> | 88% | 34,011 psi | 57% | 2280 fps | 95.3% |
| Norma 200 | <<locked>> | 80% | 42,728 psi | 71% | 2385 fps | 100% |
| Norma 201 | <<locked>> | 84% | 33,460 psi | 56% | 2251 fps | 95% |
| Norma 202 | <<locked>> | 80% | 29,196 psi | 49% | 2178 fps | 96.2% |
| Norma 203B | <<locked>> | 92% | 38,377 psi | 64% | 2402 fps | 95.1% |
| Ramshot Big Game | <<locked>> | 94% | 41,118 psi | 68% | 2461 fps | 95.4% |
| Ramshot Wild Boar | <<locked>> | 88% | 40,219 psi | 67% | 2418 fps | 95.5% |
| Ramshot X-Terminator | <<locked>> | 84% | 40,103 psi | 67% | 2359 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,453 psi | 41% | 1391 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 36,056 psi | 60% | 2303 fps | 97.3% |
| ReloadSwiss RS 52 | <<locked>> | 92% | 40,582 psi | 67% | 2497 fps | 95% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 34,026 psi | 57% | 2365 fps | 95.9% |
| Rottweil R 901 | <<locked>> | 80% | 32,634 psi | 54% | 2221 fps | 97.1% |
| Rottweil R 902 | <<locked>> | 86% | 33,736 psi | 56% | 2254 fps | 95.1% |
| Rottweil R 903 | <<locked>> | 96% | 36,970 psi | 61% | 2382 fps | 95.6% |
| Shooters World AR Plus | <<locked>> | 80% | 43,294 psi | 72% | 2441 fps | 98.9% |
| Shooters World Match Rifle | <<locked>> | 82% | 29,515 psi | 49% | 2218 fps | 95.6% |
| Shooters World Precision | <<locked>> | 88% | 34,011 psi | 57% | 2280 fps | 95.3% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 38,377 psi | 64% | 2313 fps | 96% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 46,543 psi | 77% | 2175 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 40,364 psi | 67% | 2402 fps | 99% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 39,769 psi | 66% | 2444 fps | 95.1% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 38,392 psi | 64% | 2329 fps | 99.7% |
| SNPE Vectan SP 7 | <<locked>> | 94% | 48,196 psi | 80% | 2520 fps | 95.2% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 39,958 psi | 66% | 2405 fps | 95.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 31,430 psi | 52% | 2149 fps | 96.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 25,367 psi | 42% | 2021 fps | 95.6% |
| Somchem S321 | <<locked>> | 80% | 33,924 psi | 56% | 2283 fps | 95.5% |
| Somchem S335 | <<locked>> | 80% | 30,922 psi | 51% | 2159 fps | 97.6% |
| Somchem S341 | <<locked>> | 90% | 41,524 psi | 69% | 2421 fps | 95.7% |
| Somchem S355 | <<locked>> | 96% | 38,638 psi | 64% | 2398 fps | 95.8% |
| Vihtavuori N120 | <<locked>> | 80% | 45,034 psi | 75% | 2343 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 35,911 psi | 60% | 2241 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 31,314 psi | 52% | 2162 fps | 99.1% |
| Vihtavuori N135 | <<locked>> | 80% | 26,208 psi | 44% | 2119 fps | 98% |
| Vihtavuori N140 | <<locked>> | 80% | 27,659 psi | 46% | 2123 fps | 95.9% |
| Vihtavuori N150 | <<locked>> | 92% | 32,372 psi | 54% | 2247 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 82% | 33,939 psi | 56% | 2257 fps | 95.1% |
| Vihtavuori N540 | <<locked>> | 82% | 28,326 psi | 47% | 2152 fps | 95.6% |
| Winchester 748 | 36.2 gr | 82% | 32,460 psi | 54% | 2283 fps | 95.6% |
| Winchester StaBALL Match | <<locked>> | 88% | 36,593 psi | 61% | 2359 fps | 95.1% |
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 86 powders for .308 Win. Ackley Improved loaded with the .308 | 170gr | Sako Powerhead Blade. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,713 fps; across all powders the maximum-charge window runs from 1,519 fps to 2,713 fps. Accurate 2495 gives the best case fill at 100 %, and 86 of the 86 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (415 MPa), the top charges use 55–90 %, leaving at least 10 % headroom. The 170.0 gr projectile in 0.308" calls for a 1:10.5 twist; slower twists will usually not stabilise this weight. Accurate 2495, Accurate 4064, ADI AR 2208 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. Hodgdon CFE223, Alliant Power Pro 1200-R, Winchester 748 rank at the top here: for .308 Win. Ackley Improved with the .308 | 170gr | Sako Powerhead Blade 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.