Load Specifications
Load data in caliber .308 Win. Ackley Improved with .308 | 175gr | Barnes LRX BT bullet and 89 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 Hodgdon BL-C2.
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 1680 | <<locked>> | 82% | 53,374 psi | 89% | 2431 fps | 100% |
| Accurate 2015 | <<locked>> | 94% | 52,156 psi | 87% | 2490 fps | 100% |
| Accurate 2200 | <<locked>> | 86% | 53,766 psi | 89% | 2575 fps | 97.9% |
| Accurate 2230 | <<locked>> | 86% | 54,404 psi | 90% | 2585 fps | 98.3% |
| Accurate 2460 | <<locked>> | 92% | 54,186 psi | 90% | 2556 fps | 100% |
| Accurate 2495ᴾ | <<locked>> | 100% | 50,444 psi | 84% | 2530 fps | 100% |
| Accurate 2520 | <<locked>> | 94% | 51,663 psi | 86% | 2562 fps | 99.9% |
| Accurate 4064ᴾ | <<locked>> | 100% | 46,833 psi | 78% | 2516 fps | 100% |
| Accurate LT-30 | <<locked>> | 88% | 54,201 psi | 90% | 2454 fps | 100% |
| Accurate LT-32 | <<locked>> | 86% | 51,517 psi | 86% | 2431 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 96% | 51,474 psi | 86% | 2559 fps | 98.3% |
| ADI AR 2207 | <<locked>> | 84% | 51,692 psi | 86% | 2434 fps | 100% |
| ADI AR 2208ᴾ | <<locked>> | 100% | 49,095 psi | 82% | 2500 fps | 97.2% |
| ADI AR 2219 | <<locked>> | 88% | 53,534 psi | 89% | 2562 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 94% | 51,024 psi | 85% | 2523 fps | 99.1% |
| Alliant AR-Comp | <<locked>> | 96% | 52,765 psi | 88% | 2562 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 90% | 52,228 psi | 87% | 2621 fps | 99% |
| Alliant Power Pro 2000-MR | <<locked>> | 98% | 50,923 psi | 85% | 2641 fps | 97.2% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 47,326 psi | 79% | 2520 fps | 98.5% |
| Alliant Reloder-10x | <<locked>> | 90% | 52,649 psi | 87% | 2507 fps | 100% |
| Alliant Reloder-15ᴾ | <<locked>> | 100% | 51,793 psi | 86% | 2585 fps | 98% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 41,989 psi | 70% | 2493 fps | 96.5% |
| Alliant Reloder-7 | <<locked>> | 84% | 53,011 psi | 88% | 2454 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 88% | 52,939 psi | 88% | 2454 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 96% | 50,778 psi | 84% | 2566 fps | 97.1% |
| Bofors RP3ᴾ | <<locked>> | 100% | 46,702 psi | 78% | 2523 fps | 98.5% |
| Hodgdon Benchmark | <<locked>> | 94% | 53,838 psi | 89% | 2520 fps | 99.6% |
| Hodgdon BL-C2 | <<locked>> | 96% | 52,315 psi | 87% | 2595 fps | 99.6% |
| Hodgdon CFE223 | <<locked>> | 92% | 50,966 psi | 85% | 2628 fps | 97.8% |
| Hodgdon H322 | <<locked>> | 90% | 51,866 psi | 86% | 2539 fps | 100% |
| Hodgdon H335 | <<locked>> | 90% | 52,823 psi | 88% | 2562 fps | 100% |
| Hodgdon H380ᴾ | <<locked>> | 100% | 49,327 psi | 82% | 2533 fps | 96.1% |
| Hodgdon H4198 | <<locked>> | 84% | 53,040 psi | 88% | 2457 fps | 100% |
| Hodgdon H4895 | <<locked>> | 96% | 51,793 psi | 86% | 2572 fps | 98.8% |
| Hodgdon LEVERevolutionᴾ | <<locked>> | 100% | 52,997 psi | 88% | 2638 fps | 99.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,460 psi | 56% | 1503 fps | 100% |
| Hodgdon VARGET | <<locked>> | 98% | 53,621 psi | 89% | 2575 fps | 98.9% |
| IMR 3031 | <<locked>> | 98% | 53,127 psi | 88% | 2608 fps | 100% |
| IMR 4064ᴾ | <<locked>> | 100% | 51,648 psi | 86% | 2533 fps | 97.9% |
| IMR 4198 | <<locked>> | 90% | 53,751 psi | 89% | 2470 fps | 100% |
| IMR 4895ᴾ | <<locked>> | 100% | 53,011 psi | 88% | 2618 fps | 98.7% |
| IMR 8208 XBR | <<locked>> | 94% | 51,024 psi | 85% | 2523 fps | 99.1% |
| Lovex D073.4 | <<locked>> | 84% | 51,213 psi | 85% | 2523 fps | 99.8% |
| Lovex D073.5 | <<locked>> | 92% | 54,317 psi | 90% | 2562 fps | 99.8% |
| Lovex D073.6 | <<locked>> | 98% | 52,750 psi | 88% | 2585 fps | 100% |
| Lovex S060 | <<locked>> | 96% | 52,750 psi | 88% | 2503 fps | 98.4% |
| Lovex S062ᴾ | <<locked>> | 100% | 50,415 psi | 84% | 2533 fps | 99.1% |
| Norma 200 | <<locked>> | 86% | 52,591 psi | 87% | 2484 fps | 100% |
| Norma 201 | <<locked>> | 98% | 53,040 psi | 88% | 2556 fps | 99.4% |
| Norma 202 | <<locked>> | 98% | 53,243 psi | 88% | 2566 fps | 100% |
| Norma 203Bᴾ | <<locked>> | 100% | 50,778 psi | 84% | 2575 fps | 98.3% |
| Ramshot Big Gameᴾ | <<locked>> | 100% | 51,300 psi | 85% | 2595 fps | 98.1% |
| Ramshot TAC | <<locked>> | 94% | 51,938 psi | 86% | 2530 fps | 95.8% |
| Ramshot Wild Boar | <<locked>> | 96% | 53,737 psi | 89% | 2598 fps | 98.6% |
| Ramshot X-Terminator | <<locked>> | 92% | 53,011 psi | 88% | 2530 fps | 98.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,272 psi | 55% | 1532 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 90% | 51,256 psi | 85% | 2523 fps | 99.8% |
| ReloadSwiss RS 52ᴾ | <<locked>> | 100% | 54,462 psi | 90% | 2687 fps | 98.4% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 44,976 psi | 75% | 2566 fps | 99.4% |
| Rottweil R 901 | <<locked>> | 96% | 54,244 psi | 90% | 2549 fps | 100% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 53,490 psi | 89% | 2552 fps | 99.4% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 43,337 psi | 72% | 2461 fps | 97.6% |
| Shooters World AR Plus | <<locked>> | 84% | 51,213 psi | 85% | 2523 fps | 99.8% |
| Shooters World Match Rifle | <<locked>> | 98% | 52,750 psi | 88% | 2585 fps | 100% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 50,415 psi | 84% | 2533 fps | 99.1% |
| Shooters World Tactical Rifle | <<locked>> | 88% | 51,503 psi | 86% | 2490 fps | 98.9% |
| SNPE Vectan BA6 1/2 | <<locked>> | 84% | 52,591 psi | 87% | 2211 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 88% | 53,737 psi | 89% | 2566 fps | 100% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 46,021 psi | 76% | 2523 fps | 97.2% |
| SNPE Vectan SP 3 | <<locked>> | 90% | 53,940 psi | 90% | 2523 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 96% | 52,750 psi | 88% | 2549 fps | 96.6% |
| SNPE Vectan SP 9 | <<locked>> | 98% | 53,243 psi | 88% | 2582 fps | 98.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 96% | 53,200 psi | 88% | 2477 fps | 100% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 48,849 psi | 81% | 2431 fps | 100% |
| Somchem S321 | <<locked>> | 92% | 52,011 psi | 86% | 2559 fps | 99.4% |
| Somchem S335 | <<locked>> | 96% | 51,547 psi | 86% | 2477 fps | 100% |
| Somchem S341 | <<locked>> | 96% | 51,967 psi | 86% | 2549 fps | 98.2% |
| Somchem S355ᴾ | <<locked>> | 100% | 44,628 psi | 74% | 2467 fps | 97.6% |
| Vihtavuori N120 | <<locked>> | 84% | 51,677 psi | 86% | 2388 fps | 100% |
| Vihtavuori N130 | <<locked>> | 92% | 53,098 psi | 88% | 2461 fps | 100% |
| Vihtavuori N133 | <<locked>> | 96% | 52,736 psi | 88% | 2470 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 51,677 psi | 86% | 2533 fps | 100% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 53,940 psi | 90% | 2549 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 43,163 psi | 72% | 2415 fps | 98.4% |
| Vihtavuori N530 | <<locked>> | 94% | 51,793 psi | 86% | 2530 fps | 99.2% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 52,156 psi | 87% | 2546 fps | 100% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 40,132 psi | 67% | 2352 fps | 95.9% |
| Winchester 748 | <<locked>> | 96% | 53,519 psi | 89% | 2615 fps | 99.8% |
| Winchester StaBALL Match | <<locked>> | 98% | 52,547 psi | 87% | 2589 fps | 98.9% |
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% | 49,850 psi | 83% | 2388 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 33,576 psi | 56% | 2201 fps | 99.7% |
| Accurate 2200 | <<locked>> | 80% | 44,222 psi | 73% | 2425 fps | 96% |
| Accurate 2230 | <<locked>> | 80% | 43,598 psi | 72% | 2425 fps | 96.3% |
| Accurate 2460 | <<locked>> | 80% | 35,911 psi | 60% | 2274 fps | 98.3% |
| Accurate 2495 | <<locked>> | 80% | 25,556 psi | 42% | 2087 fps | 98.3% |
| Accurate 2520 | <<locked>> | 80% | 31,560 psi | 52% | 2218 fps | 96.8% |
| Accurate 4064 | <<locked>> | 80% | 24,294 psi | 40% | 2060 fps | 95% |
| Accurate LT-30 | <<locked>> | 80% | 42,540 psi | 71% | 2290 fps | 99.9% |
| Accurate LT-32 | <<locked>> | 80% | 42,946 psi | 71% | 2300 fps | 99.1% |
| ADI AR 2206H | <<locked>> | 86% | 37,478 psi | 62% | 2323 fps | 95.1% |
| ADI AR 2207 | <<locked>> | 80% | 45,919 psi | 76% | 2359 fps | 100% |
| ADI AR 2208 | <<locked>> | 94% | 40,973 psi | 68% | 2369 fps | 95.2% |
| ADI AR 2219 | <<locked>> | 80% | 40,596 psi | 67% | 2372 fps | 99.8% |
| ADI Benchmark 8208 | <<locked>> | 82% | 34,983 psi | 58% | 2247 fps | 95.8% |
| Alliant AR-Comp | <<locked>> | 80% | 30,951 psi | 51% | 2221 fps | 100% |
| Alliant Power Pro 1200-R | 33.6 gr | 80% | 37,086 psi | 62% | 2359 fps | 95.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 94% | 44,440 psi | 74% | 2526 fps | 95.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 34,142 psi | 57% | 2283 fps | 95.2% |
| Alliant Reloder-10x | <<locked>> | 80% | 38,450 psi | 64% | 2297 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 39,972 psi | 66% | 2395 fps | 95.3% |
| Alliant Reloder-17 | <<locked>> | 98% | 39,247 psi | 65% | 2438 fps | 95.6% |
| Alliant Reloder-7 | <<locked>> | 80% | 46,949 psi | 78% | 2372 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 40,959 psi | 68% | 2283 fps | 99.9% |
| Baschieri & Pellagri 107 | <<locked>> | 92% | 44,425 psi | 74% | 2464 fps | 95.7% |
| Bofors RP3 | <<locked>> | 90% | 33,286 psi | 55% | 2283 fps | 95.1% |
| Hodgdon Benchmark | <<locked>> | 80% | 35,085 psi | 58% | 2208 fps | 96.5% |
| Hodgdon BL-C2 | 36.7 gr | 82% | 32,155 psi | 53% | 2247 fps | 95.6% |
| Hodgdon CFE223 | 39.4 gr | 86% | 41,263 psi | 69% | 2464 fps | 95.5% |
| Hodgdon H322 | <<locked>> | 80% | 37,188 psi | 62% | 2310 fps | 99.4% |
| Hodgdon H335 | <<locked>> | 80% | 37,739 psi | 63% | 2326 fps | 98.9% |
| Hodgdon H380 | <<locked>> | 98% | 45,977 psi | 76% | 2484 fps | 95.3% |
| Hodgdon H4198 | <<locked>> | 80% | 46,934 psi | 78% | 2369 fps | 100% |
| Hodgdon H4895 | <<locked>> | 84% | 35,143 psi | 58% | 2283 fps | 95.1% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 35,940 psi | 60% | 2343 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,497 psi | 41% | 1335 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 36,695 psi | 61% | 2297 fps | 95.4% |
| IMR 3031 | <<locked>> | 80% | 29,414 psi | 49% | 2198 fps | 98.5% |
| IMR 4064 | <<locked>> | 92% | 40,437 psi | 67% | 2352 fps | 95.4% |
| IMR 4198 | <<locked>> | 80% | 40,190 psi | 67% | 2280 fps | 100% |
| IMR 4895 | <<locked>> | 90% | 38,406 psi | 64% | 2379 fps | 95.6% |
| IMR 8208 XBR | <<locked>> | 82% | 34,983 psi | 58% | 2247 fps | 95.8% |
| Lovex D073.4 | <<locked>> | 80% | 44,396 psi | 74% | 2425 fps | 99.3% |
| Lovex D073.5 | <<locked>> | 80% | 35,723 psi | 59% | 2270 fps | 97.1% |
| Lovex D073.6 | <<locked>> | 80% | 28,268 psi | 47% | 2156 fps | 95.4% |
| Lovex S060 | <<locked>> | 86% | 38,986 psi | 65% | 2280 fps | 95.5% |
| Lovex S062 | <<locked>> | 86% | 32,532 psi | 54% | 2215 fps | 95.1% |
| Norma 200 | <<locked>> | 80% | 43,424 psi | 72% | 2356 fps | 100% |
| Norma 201 | <<locked>> | 84% | 34,287 psi | 57% | 2238 fps | 95.7% |
| Norma 202 | <<locked>> | 80% | 29,936 psi | 50% | 2162 fps | 96.9% |
| Norma 203B | <<locked>> | 90% | 36,811 psi | 61% | 2336 fps | 95% |
| Ramshot Big Game | <<locked>> | 92% | 39,218 psi | 65% | 2392 fps | 95.2% |
| Ramshot TAC | <<locked>> | 92% | 48,646 psi | 81% | 2480 fps | 95% |
| Ramshot Wild Boar | <<locked>> | 86% | 38,305 psi | 64% | 2349 fps | 95.3% |
| Ramshot X-Terminator | <<locked>> | 82% | 38,174 psi | 63% | 2290 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,729 psi | 41% | 1371 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 36,898 psi | 61% | 2287 fps | 97.8% |
| ReloadSwiss RS 52 | <<locked>> | 92% | 41,727 psi | 69% | 2484 fps | 95.7% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 32,460 psi | 54% | 2297 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 80% | 33,388 psi | 55% | 2201 fps | 97.6% |
| Rottweil R 902 | <<locked>> | 84% | 32,518 psi | 54% | 2192 fps | 95% |
| Rottweil R 903 | <<locked>> | 94% | 35,433 psi | 59% | 2320 fps | 95.5% |
| Shooters World AR Plus | <<locked>> | 80% | 44,396 psi | 74% | 2425 fps | 99.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 28,268 psi | 47% | 2156 fps | 95.4% |
| Shooters World Precision | <<locked>> | 86% | 32,532 psi | 54% | 2215 fps | 95.1% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 39,015 psi | 65% | 2293 fps | 96.6% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 47,268 psi | 79% | 2146 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 41,336 psi | 69% | 2382 fps | 99.3% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 40,524 psi | 67% | 2425 fps | 95.7% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 39,305 psi | 65% | 2310 fps | 99.9% |
| SNPE Vectan SP 7 | <<locked>> | 92% | 45,847 psi | 76% | 2448 fps | 95.1% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 38,348 psi | 64% | 2339 fps | 95.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 32,155 psi | 53% | 2133 fps | 97.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 25,933 psi | 43% | 2008 fps | 96.3% |
| Somchem S321 | <<locked>> | 80% | 34,548 psi | 57% | 2264 fps | 96.1% |
| Somchem S335 | <<locked>> | 80% | 31,401 psi | 52% | 2136 fps | 98% |
| Somchem S341 | <<locked>> | 88% | 39,537 psi | 66% | 2352 fps | 95.5% |
| Somchem S355 | <<locked>> | 94% | 37,072 psi | 62% | 2333 fps | 95.7% |
| Vihtavuori N120 | <<locked>> | 80% | 45,977 psi | 76% | 2316 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 36,695 psi | 61% | 2218 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 32,068 psi | 53% | 2146 fps | 99.4% |
| Vihtavuori N135 | <<locked>> | 80% | 26,934 psi | 45% | 2106 fps | 98.5% |
| Vihtavuori N140 | <<locked>> | 80% | 28,326 psi | 47% | 2110 fps | 96.6% |
| Vihtavuori N150 | <<locked>> | 90% | 31,009 psi | 52% | 2185 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 80% | 32,401 psi | 54% | 2192 fps | 95% |
| Vihtavuori N540 | <<locked>> | 80% | 27,108 psi | 45% | 2093 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 37,579 psi | 62% | 2303 fps | 95% |
| Winchester 748 | <<locked>> | 80% | 31,082 psi | 52% | 2218 fps | 95.4% |
| Winchester StaBALL Match | <<locked>> | 88% | 37,275 psi | 62% | 2339 fps | 95.8% |
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 89 powders for .308 Win. Ackley Improved loaded with the .308 | 175gr | Barnes LRX BT. ReloadSwiss RS 52 delivers the highest muzzle velocity at 2,687 fps; across all powders the maximum-charge window runs from 1,503 fps to 2,687 fps. Accurate 2495 gives the best case fill at 100 %, and 89 of the 89 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 175.0 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, Hodgdon BL-C2 rank at the top here: for .308 Win. Ackley Improved with the .308 | 175gr | Barnes LRX BT 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.