Load Specifications
Load data in caliber .308 Win. Ackley Improved with .308 | 180gr | Swift Scirocco bullet and 89 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, ReloadSwiss RS 52 and Hodgdon CFE223.
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>> | 92% | 52,562 psi | 87% | 2457 fps | 100% |
| Accurate 2200 | <<locked>> | 84% | 53,330 psi | 89% | 2536 fps | 98.2% |
| Accurate 2230 | <<locked>> | 84% | 53,780 psi | 89% | 2546 fps | 98.6% |
| Accurate 2460 | <<locked>> | 88% | 51,068 psi | 85% | 2480 fps | 100% |
| Accurate 2495 | <<locked>> | 98% | 51,561 psi | 86% | 2503 fps | 100% |
| Accurate 2520 | <<locked>> | 92% | 51,692 psi | 86% | 2526 fps | 100% |
| Accurate 4064ᴾ | <<locked>> | 100% | 51,329 psi | 85% | 2536 fps | 100% |
| Accurate LT-30 | <<locked>> | 86% | 53,882 psi | 90% | 2418 fps | 100% |
| Accurate LT-32 | <<locked>> | 86% | 54,317 psi | 90% | 2434 fps | 100% |
| ADI AR 2206H | <<locked>> | 94% | 51,227 psi | 85% | 2523 fps | 98.6% |
| ADI AR 2207 | <<locked>> | 82% | 51,459 psi | 85% | 2395 fps | 100% |
| ADI AR 2208ᴾ | <<locked>> | 100% | 52,040 psi | 86% | 2513 fps | 98.1% |
| ADI AR 2219 | <<locked>> | 86% | 53,171 psi | 88% | 2520 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 94% | 54,143 psi | 90% | 2533 fps | 99.6% |
| Alliant AR-Comp | <<locked>> | 94% | 52,750 psi | 88% | 2523 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 88% | 52,156 psi | 87% | 2582 fps | 99.2% |
| Alliant Power Pro 2000-MR | <<locked>> | 98% | 54,273 psi | 90% | 2664 fps | 98.3% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 50,604 psi | 84% | 2533 fps | 99.2% |
| Alliant Reloder-10x | <<locked>> | 88% | 52,953 psi | 88% | 2470 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 98% | 51,648 psi | 86% | 2552 fps | 98.3% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 45,020 psi | 75% | 2523 fps | 97.9% |
| Alliant Reloder-7 | <<locked>> | 82% | 52,794 psi | 88% | 2411 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 86% | 52,344 psi | 87% | 2415 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 96% | 54,186 psi | 90% | 2582 fps | 98.1% |
| Bofors RP3ᴾ | <<locked>> | 100% | 50,720 psi | 84% | 2549 fps | 99.3% |
| Hodgdon Benchmark | <<locked>> | 92% | 53,737 psi | 89% | 2487 fps | 99.8% |
| Hodgdon BL-C2 | <<locked>> | 94% | 52,547 psi | 87% | 2566 fps | 99.8% |
| Hodgdon CFE223 | <<locked>> | 92% | 54,157 psi | 90% | 2641 fps | 98.7% |
| Hodgdon H322 | <<locked>> | 88% | 51,547 psi | 86% | 2500 fps | 100% |
| Hodgdon H335 | <<locked>> | 88% | 52,504 psi | 87% | 2523 fps | 100% |
| Hodgdon H380ᴾ | <<locked>> | 100% | 52,605 psi | 87% | 2552 fps | 97.2% |
| Hodgdon H4198 | <<locked>> | 82% | 52,431 psi | 87% | 2415 fps | 100% |
| Hodgdon H4895 | <<locked>> | 94% | 51,547 psi | 86% | 2536 fps | 99.1% |
| Hodgdon LEVERevolution | <<locked>> | 98% | 53,055 psi | 88% | 2605 fps | 99.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,968 psi | 56% | 1490 fps | 100% |
| Hodgdon VARGET | <<locked>> | 96% | 53,490 psi | 89% | 2543 fps | 99.2% |
| IMR 3031 | <<locked>> | 96% | 53,461 psi | 89% | 2572 fps | 100% |
| IMR 4064 | <<locked>> | 98% | 51,692 psi | 86% | 2500 fps | 98.3% |
| IMR 4198 | <<locked>> | 88% | 53,621 psi | 89% | 2434 fps | 100% |
| IMR 4895 | <<locked>> | 98% | 52,866 psi | 88% | 2582 fps | 98.9% |
| IMR 8208 XBR | <<locked>> | 94% | 54,143 psi | 90% | 2533 fps | 99.6% |
| Lovex D073.4 | <<locked>> | 84% | 54,404 psi | 90% | 2530 fps | 100% |
| Lovex D073.5 | <<locked>> | 90% | 54,230 psi | 90% | 2526 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 96% | 52,794 psi | 88% | 2549 fps | 100% |
| Lovex S060 | <<locked>> | 94% | 52,243 psi | 87% | 2467 fps | 98.7% |
| Lovex S062ᴾ | <<locked>> | 100% | 53,824 psi | 89% | 2543 fps | 99.7% |
| Norma 200 | <<locked>> | 84% | 52,823 psi | 88% | 2444 fps | 100% |
| Norma 201 | <<locked>> | 96% | 53,330 psi | 89% | 2526 fps | 99.6% |
| Norma 202 | <<locked>> | 96% | 53,403 psi | 89% | 2533 fps | 100% |
| Norma 203Bᴾ | <<locked>> | 100% | 54,157 psi | 90% | 2589 fps | 99% |
| Ramshot Big Game | <<locked>> | 98% | 51,285 psi | 85% | 2566 fps | 98.5% |
| Ramshot TAC | <<locked>> | 92% | 51,866 psi | 86% | 2500 fps | 96.3% |
| Ramshot Wild Boar | <<locked>> | 94% | 53,693 psi | 89% | 2566 fps | 98.9% |
| Ramshot X-Terminator | <<locked>> | 90% | 52,591 psi | 87% | 2493 fps | 98.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,214 psi | 57% | 1526 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 90% | 54,404 psi | 90% | 2530 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 96% | 50,952 psi | 85% | 2605 fps | 98.2% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 48,153 psi | 80% | 2589 fps | 99.9% |
| Rottweil R 901 | <<locked>> | 94% | 54,447 psi | 90% | 2513 fps | 100% |
| Rottweil R 902 | <<locked>> | 98% | 53,417 psi | 89% | 2516 fps | 99.6% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 46,847 psi | 78% | 2484 fps | 98.6% |
| Shooters World AR Plus | <<locked>> | 84% | 54,404 psi | 90% | 2530 fps | 100% |
| Shooters World Match Rifle | <<locked>> | 96% | 52,794 psi | 88% | 2549 fps | 100% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 53,824 psi | 89% | 2543 fps | 99.7% |
| Shooters World Tactical Rifle | <<locked>> | 86% | 51,082 psi | 85% | 2454 fps | 99.1% |
| SNPE Vectan BA6 1/2 | <<locked>> | 82% | 51,938 psi | 86% | 2169 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 86% | 53,490 psi | 89% | 2530 fps | 100% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 49,240 psi | 82% | 2543 fps | 98.2% |
| SNPE Vectan SP 3 | <<locked>> | 88% | 53,592 psi | 89% | 2480 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 94% | 52,852 psi | 88% | 2523 fps | 97.1% |
| SNPE Vectan SP 9 | <<locked>> | 96% | 52,837 psi | 88% | 2543 fps | 98.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 94% | 53,084 psi | 88% | 2444 fps | 100% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 51,909 psi | 86% | 2434 fps | 100% |
| Somchem S321 | <<locked>> | 90% | 52,170 psi | 87% | 2530 fps | 99.6% |
| Somchem S335 | <<locked>> | 94% | 51,735 psi | 86% | 2444 fps | 100% |
| Somchem S341 | <<locked>> | 94% | 52,025 psi | 86% | 2516 fps | 98.6% |
| Somchem S355ᴾ | <<locked>> | 100% | 48,298 psi | 80% | 2490 fps | 98.6% |
| Somchem S365ᴾ | <<locked>> | 100% | 34,592 psi | 57% | 2326 fps | 96.4% |
| Vihtavuori N120 | <<locked>> | 82% | 51,445 psi | 85% | 2349 fps | 100% |
| Vihtavuori N130 | <<locked>> | 90% | 52,721 psi | 88% | 2421 fps | 100% |
| Vihtavuori N133 | <<locked>> | 94% | 52,707 psi | 88% | 2434 fps | 100% |
| Vihtavuori N135 | <<locked>> | 98% | 52,098 psi | 87% | 2497 fps | 100% |
| Vihtavuori N140 | <<locked>> | 98% | 53,998 psi | 90% | 2513 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 46,296 psi | 77% | 2431 fps | 99.2% |
| Vihtavuori N530 | <<locked>> | 92% | 51,474 psi | 86% | 2490 fps | 99.4% |
| Vihtavuori N540 | <<locked>> | 98% | 52,315 psi | 87% | 2516 fps | 100% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 42,540 psi | 71% | 2372 fps | 97.2% |
| Winchester 748 | <<locked>> | 94% | 53,301 psi | 89% | 2579 fps | 99.9% |
| Winchester StaBALL Match | <<locked>> | 96% | 52,272 psi | 87% | 2552 fps | 99.1% |
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% | 36,303 psi | 60% | 2215 fps | 100% |
| Accurate 2200 | <<locked>> | 80% | 46,905 psi | 78% | 2438 fps | 97.1% |
| Accurate 2230 | <<locked>> | 80% | 46,905 psi | 78% | 2444 fps | 97.5% |
| Accurate 2460 | <<locked>> | 80% | 39,088 psi | 65% | 2297 fps | 99.2% |
| Accurate 2495 | <<locked>> | 80% | 28,645 psi | 48% | 2123 fps | 99.3% |
| Accurate 2520 | <<locked>> | 80% | 34,345 psi | 57% | 2244 fps | 98% |
| Accurate 4064 | <<locked>> | 80% | 27,137 psi | 45% | 2100 fps | 96.8% |
| Accurate LT-30 | <<locked>> | 80% | 44,846 psi | 75% | 2293 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 45,223 psi | 75% | 2306 fps | 99.6% |
| ADI AR 2206H | <<locked>> | 84% | 37,753 psi | 63% | 2297 fps | 95.7% |
| ADI AR 2207 | <<locked>> | 80% | 48,443 psi | 80% | 2356 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 38,580 psi | 64% | 2293 fps | 95% |
| ADI AR 2219 | <<locked>> | 80% | 43,613 psi | 72% | 2385 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 35,259 psi | 59% | 2221 fps | 96.4% |
| Alliant AR-Comp | <<locked>> | 80% | 33,243 psi | 55% | 2231 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 40,190 psi | 67% | 2388 fps | 97.2% |
| Alliant Power Pro 2000-MR | 40.9 gr | 90% | 41,408 psi | 69% | 2444 fps | 95.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 32,576 psi | 54% | 2218 fps | 95.1% |
| Alliant Reloder-10x | <<locked>> | 80% | 41,249 psi | 69% | 2306 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 37,942 psi | 63% | 2323 fps | 95.2% |
| Alliant Reloder-17 | <<locked>> | 94% | 37,057 psi | 62% | 2365 fps | 95.5% |
| Alliant Reloder-7 | <<locked>> | 80% | 49,385 psi | 82% | 2369 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 43,468 psi | 72% | 2293 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 41,611 psi | 69% | 2385 fps | 95.5% |
| Bofors RP3 | <<locked>> | 86% | 31,705 psi | 53% | 2215 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 37,347 psi | 62% | 2221 fps | 97.5% |
| Hodgdon BL-C2 | <<locked>> | 80% | 32,692 psi | 54% | 2224 fps | 96.3% |
| Hodgdon CFE223 | 38.2 gr | 82% | 38,711 psi | 64% | 2382 fps | 95.3% |
| Hodgdon H322 | <<locked>> | 80% | 39,740 psi | 66% | 2320 fps | 99.8% |
| Hodgdon H335 | <<locked>> | 80% | 40,306 psi | 67% | 2339 fps | 99.5% |
| Hodgdon H380 | <<locked>> | 94% | 43,265 psi | 72% | 2408 fps | 95.1% |
| Hodgdon H4198 | <<locked>> | 80% | 49,400 psi | 82% | 2372 fps | 100% |
| Hodgdon H4895 | <<locked>> | 80% | 33,460 psi | 56% | 2215 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 33,881 psi | 56% | 2267 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,106 psi | 42% | 1329 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 34,461 psi | 57% | 2218 fps | 95.2% |
| IMR 3031 | <<locked>> | 80% | 31,865 psi | 53% | 2221 fps | 99.3% |
| IMR 4064 | <<locked>> | 88% | 38,174 psi | 63% | 2280 fps | 95.2% |
| IMR 4198 | <<locked>> | 80% | 42,337 psi | 70% | 2280 fps | 100% |
| IMR 4895 | <<locked>> | 86% | 36,260 psi | 60% | 2300 fps | 95.4% |
| IMR 8208 XBR | <<locked>> | 80% | 35,259 psi | 59% | 2221 fps | 96.4% |
| Lovex D073.4 | <<locked>> | 80% | 47,485 psi | 79% | 2434 fps | 99.7% |
| Lovex D073.5 | <<locked>> | 80% | 38,609 psi | 64% | 2290 fps | 98.2% |
| Lovex D073.6 | <<locked>> | 80% | 30,951 psi | 51% | 2182 fps | 96.9% |
| Lovex S060 | <<locked>> | 82% | 36,782 psi | 61% | 2208 fps | 95.4% |
| Lovex S062 | <<locked>> | 82% | 31,198 psi | 52% | 2152 fps | 95.1% |
| Norma 200 | <<locked>> | 80% | 46,586 psi | 77% | 2362 fps | 100% |
| Norma 201 | <<locked>> | 80% | 32,590 psi | 54% | 2165 fps | 95.6% |
| Norma 202 | <<locked>> | 80% | 32,416 psi | 54% | 2185 fps | 98% |
| Norma 203B | <<locked>> | 88% | 37,188 psi | 62% | 2313 fps | 95.6% |
| Ramshot Big Game | <<locked>> | 88% | 36,869 psi | 61% | 2316 fps | 95% |
| Ramshot TAC | <<locked>> | 90% | 48,327 psi | 80% | 2448 fps | 95.5% |
| Ramshot Wild Boar | <<locked>> | 82% | 36,056 psi | 60% | 2274 fps | 95.1% |
| Ramshot X-Terminator | <<locked>> | 80% | 38,348 psi | 64% | 2260 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,150 psi | 42% | 1358 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 39,392 psi | 65% | 2300 fps | 98.7% |
| ReloadSwiss RS 52 | 38.8 gr | 88% | 39,146 psi | 65% | 2405 fps | 95.5% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 30,661 psi | 51% | 2224 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 36,260 psi | 60% | 2224 fps | 98.7% |
| Rottweil R 902 | <<locked>> | 82% | 33,127 psi | 55% | 2172 fps | 95.7% |
| Rottweil R 903 | <<locked>> | 90% | 33,881 psi | 56% | 2251 fps | 95.4% |
| Shooters World AR Plus | <<locked>> | 80% | 47,485 psi | 79% | 2434 fps | 99.7% |
| Shooters World Match Rifle | <<locked>> | 80% | 30,951 psi | 51% | 2182 fps | 96.9% |
| Shooters World Precision | <<locked>> | 82% | 31,198 psi | 52% | 2152 fps | 95.1% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 41,829 psi | 69% | 2313 fps | 97.7% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 49,313 psi | 82% | 2136 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 43,961 psi | 73% | 2392 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 38,348 psi | 64% | 2352 fps | 95.6% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 41,945 psi | 70% | 2316 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 90% | 45,847 psi | 76% | 2418 fps | 95.6% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 36,085 psi | 60% | 2264 fps | 95.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 34,490 psi | 57% | 2149 fps | 98.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 27,934 psi | 46% | 2028 fps | 97.6% |
| Somchem S321 | <<locked>> | 80% | 37,376 psi | 62% | 2287 fps | 97.3% |
| Somchem S335 | <<locked>> | 80% | 33,837 psi | 56% | 2156 fps | 98.9% |
| Somchem S341 | <<locked>> | 84% | 37,159 psi | 62% | 2277 fps | 95.3% |
| Somchem S355 | <<locked>> | 90% | 35,331 psi | 59% | 2264 fps | 95.6% |
| Somchem S365 | <<locked>> | 98% | 32,416 psi | 54% | 2274 fps | 95.5% |
| Vihtavuori N120 | <<locked>> | 80% | 48,443 psi | 80% | 2313 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 39,247 psi | 65% | 2228 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 34,374 psi | 57% | 2156 fps | 99.8% |
| Vihtavuori N135 | <<locked>> | 80% | 29,443 psi | 49% | 2126 fps | 99.4% |
| Vihtavuori N140 | <<locked>> | 80% | 30,632 psi | 51% | 2129 fps | 97.8% |
| Vihtavuori N150 | <<locked>> | 86% | 29,617 psi | 49% | 2123 fps | 95% |
| Vihtavuori N530 | <<locked>> | 80% | 34,780 psi | 58% | 2211 fps | 96.3% |
| Vihtavuori N540 | <<locked>> | 80% | 29,341 psi | 49% | 2116 fps | 96.8% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 37,463 psi | 62% | 2277 fps | 95.6% |
| Winchester 748 | <<locked>> | 80% | 33,634 psi | 56% | 2244 fps | 96.9% |
| Winchester StaBALL Match | <<locked>> | 84% | 35,143 psi | 58% | 2264 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 112 powders for .308 Win. Ackley Improved loaded with the .308 | 180gr | Swift Scirocco. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,664 fps; across all powders the maximum-charge window runs from 1,490 fps to 2,664 fps. Accurate 4064 gives the best case fill at 100 %, and 112 of the 112 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (415 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 180.0 gr projectile in 0.308" calls for a 1:11.0 twist; slower twists will usually not stabilise this weight. Accurate 4064, Accurate 4350, 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. Alliant Power Pro 2000-MR, ReloadSwiss RS 52, Hodgdon CFE223 rank at the top here: for .308 Win. Ackley Improved with the .308 | 180gr | Swift Scirocco they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2700, Accurate 4350, Alliant Reloder-16 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.