Load Specifications
Load data in caliber .308 Win. Ackley Improved with .308 | 180gr | Speer TBBC bullet and 92 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 LEVERevolution.
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>> | 90% | 52,257 psi | 87% | 2480 fps | 100% |
| Accurate 2200 | <<locked>> | 82% | 52,591 psi | 87% | 2556 fps | 98.5% |
| Accurate 2230 | <<locked>> | 82% | 53,229 psi | 88% | 2566 fps | 98.8% |
| Accurate 2460 | <<locked>> | 88% | 54,259 psi | 90% | 2546 fps | 100% |
| Accurate 2495 | <<locked>> | 96% | 52,199 psi | 87% | 2533 fps | 100% |
| Accurate 2520 | <<locked>> | 90% | 51,721 psi | 86% | 2552 fps | 100% |
| Accurate 4064 | <<locked>> | 98% | 51,808 psi | 86% | 2566 fps | 100% |
| Accurate LT-30 | <<locked>> | 84% | 53,127 psi | 88% | 2434 fps | 100% |
| Accurate LT-32 | <<locked>> | 84% | 53,548 psi | 89% | 2454 fps | 100% |
| ADI AR 2206H | <<locked>> | 92% | 51,271 psi | 85% | 2552 fps | 99% |
| ADI AR 2207 | <<locked>> | 82% | 54,172 psi | 90% | 2448 fps | 100% |
| ADI AR 2208 | <<locked>> | 98% | 52,025 psi | 86% | 2546 fps | 98.5% |
| ADI AR 2219 | <<locked>> | 84% | 52,721 psi | 88% | 2539 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 92% | 53,998 psi | 90% | 2562 fps | 99.8% |
| Alliant AR-Comp | <<locked>> | 92% | 52,910 psi | 88% | 2543 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 86% | 51,996 psi | 86% | 2608 fps | 99.5% |
| Alliant Power Pro 2000-MR | <<locked>> | 96% | 53,621 psi | 89% | 2690 fps | 98.7% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 54,128 psi | 90% | 2612 fps | 99.7% |
| Alliant Reloder-10x | <<locked>> | 86% | 52,576 psi | 87% | 2490 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 96% | 51,793 psi | 86% | 2582 fps | 98.7% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 41,814 psi | 69% | 2464 fps | 95.8% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 47,819 psi | 79% | 2605 fps | 98.9% |
| Baschieri & Pellagri 106 | <<locked>> | 84% | 51,851 psi | 86% | 2434 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 94% | 53,911 psi | 90% | 2608 fps | 98.5% |
| Bofors RP3ᴾ | <<locked>> | 100% | 54,302 psi | 90% | 2621 fps | 99.8% |
| Hodgdon Benchmark | <<locked>> | 90% | 53,330 psi | 89% | 2510 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 92% | 52,228 psi | 87% | 2589 fps | 99.9% |
| Hodgdon CFE223 | <<locked>> | 90% | 54,244 psi | 90% | 2674 fps | 99% |
| Hodgdon H322 | <<locked>> | 86% | 51,271 psi | 85% | 2520 fps | 100% |
| Hodgdon H335 | <<locked>> | 86% | 52,141 psi | 87% | 2546 fps | 100% |
| Hodgdon H380 | <<locked>> | 98% | 52,808 psi | 88% | 2585 fps | 97.7% |
| Hodgdon H4895 | <<locked>> | 92% | 51,634 psi | 86% | 2562 fps | 99.3% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 37,985 psi | 63% | 2362 fps | 96.6% |
| Hodgdon LEVERevolution | <<locked>> | 96% | 53,258 psi | 88% | 2638 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,330 psi | 57% | 1519 fps | 100% |
| Hodgdon VARGET | <<locked>> | 94% | 53,243 psi | 88% | 2569 fps | 99.4% |
| IMR 3031 | <<locked>> | 94% | 53,780 psi | 89% | 2602 fps | 100% |
| IMR 4064 | <<locked>> | 96% | 51,488 psi | 86% | 2530 fps | 98.6% |
| IMR 4198 | <<locked>> | 86% | 53,345 psi | 89% | 2454 fps | 100% |
| IMR 4895 | <<locked>> | 96% | 53,055 psi | 88% | 2612 fps | 99.2% |
| IMR 8208 XBR | <<locked>> | 92% | 53,998 psi | 90% | 2562 fps | 99.8% |
| Lovex D073.4 | <<locked>> | 82% | 53,983 psi | 90% | 2549 fps | 100% |
| Lovex D073.5 | <<locked>> | 88% | 54,172 psi | 90% | 2552 fps | 100% |
| Lovex D073.6 | <<locked>> | 94% | 53,084 psi | 88% | 2579 fps | 100% |
| Lovex S060 | <<locked>> | 92% | 52,112 psi | 87% | 2493 fps | 99% |
| Lovex S062 | <<locked>> | 98% | 53,969 psi | 90% | 2575 fps | 99.8% |
| Norma 200 | <<locked>> | 82% | 52,591 psi | 87% | 2464 fps | 100% |
| Norma 201 | <<locked>> | 94% | 53,301 psi | 89% | 2552 fps | 99.8% |
| Norma 202 | <<locked>> | 94% | 53,388 psi | 89% | 2559 fps | 100% |
| Norma 203B | <<locked>> | 98% | 54,186 psi | 90% | 2618 fps | 99.3% |
| Ramshot Big Game | <<locked>> | 96% | 50,981 psi | 85% | 2589 fps | 98.8% |
| Ramshot TAC | <<locked>> | 90% | 51,329 psi | 85% | 2523 fps | 96.7% |
| Ramshot Wild Boar | <<locked>> | 92% | 53,592 psi | 89% | 2592 fps | 99.2% |
| Ramshot X-Terminator | <<locked>> | 88% | 52,257 psi | 87% | 2520 fps | 98.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,592 psi | 57% | 1555 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 88% | 54,070 psi | 90% | 2556 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 98% | 53,664 psi | 89% | 2566 fps | 96.2% |
| ReloadSwiss RS 52 | <<locked>> | 94% | 51,213 psi | 85% | 2638 fps | 98.6% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 51,097 psi | 85% | 2667 fps | 100% |
| Rottweil R 901 | <<locked>> | 92% | 54,346 psi | 90% | 2539 fps | 100% |
| Rottweil R 902 | <<locked>> | 96% | 53,664 psi | 89% | 2549 fps | 99.8% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 50,328 psi | 84% | 2559 fps | 99.3% |
| Shooters World AR Plus | <<locked>> | 82% | 53,983 psi | 90% | 2549 fps | 100% |
| Shooters World Match Rifle | <<locked>> | 94% | 53,084 psi | 88% | 2579 fps | 100% |
| Shooters World Precision | <<locked>> | 98% | 53,969 psi | 90% | 2575 fps | 99.8% |
| Shooters World Tactical Rifle | <<locked>> | 86% | 53,998 psi | 90% | 2523 fps | 99.6% |
| SNPE Vectan BA6 1/2 | <<locked>> | 82% | 54,041 psi | 90% | 2215 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 84% | 53,229 psi | 88% | 2552 fps | 100% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 52,591 psi | 87% | 2621 fps | 99.1% |
| SNPE Vectan SP 3 | <<locked>> | 86% | 53,519 psi | 89% | 2507 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 92% | 52,243 psi | 87% | 2543 fps | 97.4% |
| SNPE Vectan SP 9 | <<locked>> | 94% | 52,866 psi | 88% | 2572 fps | 99.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 92% | 52,431 psi | 87% | 2464 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 98% | 51,663 psi | 86% | 2461 fps | 100% |
| Somchem S321 | <<locked>> | 88% | 51,634 psi | 86% | 2549 fps | 99.8% |
| Somchem S335 | <<locked>> | 92% | 51,416 psi | 85% | 2464 fps | 100% |
| Somchem S341 | <<locked>> | 92% | 51,924 psi | 86% | 2546 fps | 98.9% |
| Somchem S355ᴾ | <<locked>> | 100% | 51,314 psi | 85% | 2562 fps | 99.3% |
| Somchem S365ᴾ | <<locked>> | 100% | 36,941 psi | 61% | 2408 fps | 97.8% |
| Vihtavuori N120 | <<locked>> | 82% | 54,027 psi | 90% | 2402 fps | 100% |
| Vihtavuori N130 | <<locked>> | 88% | 52,489 psi | 87% | 2441 fps | 100% |
| Vihtavuori N133 | <<locked>> | 92% | 52,228 psi | 87% | 2454 fps | 100% |
| Vihtavuori N135 | <<locked>> | 96% | 52,011 psi | 86% | 2520 fps | 100% |
| Vihtavuori N140 | <<locked>> | 96% | 53,766 psi | 89% | 2536 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 49,545 psi | 82% | 2503 fps | 99.7% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 43,801 psi | 73% | 2457 fps | 96.1% |
| Vihtavuori N530 | <<locked>> | 90% | 51,068 psi | 85% | 2513 fps | 99.6% |
| Vihtavuori N540 | <<locked>> | 96% | 52,185 psi | 87% | 2539 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 42,670 psi | 71% | 2461 fps | 95.7% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 45,353 psi | 75% | 2454 fps | 98.3% |
| Winchester 748 | <<locked>> | 92% | 53,156 psi | 88% | 2602 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 94% | 52,170 psi | 87% | 2579 fps | 99.4% |
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 2015 | <<locked>> | 80% | 38,493 psi | 64% | 2277 fps | 100% |
| Accurate 2200 | <<locked>> | 80% | 49,356 psi | 82% | 2507 fps | 98% |
| Accurate 2230 | <<locked>> | 80% | 49,893 psi | 83% | 2520 fps | 98.4% |
| Accurate 2460 | <<locked>> | 80% | 41,597 psi | 69% | 2362 fps | 99.7% |
| Accurate 2495 | <<locked>> | 80% | 30,922 psi | 51% | 2188 fps | 99.8% |
| Accurate 2520 | <<locked>> | 80% | 36,709 psi | 61% | 2310 fps | 98.8% |
| Accurate 4064 | <<locked>> | 80% | 29,283 psi | 49% | 2169 fps | 97.9% |
| Accurate LT-30 | <<locked>> | 80% | 46,891 psi | 78% | 2349 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 47,268 psi | 79% | 2365 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 80% | 35,346 psi | 59% | 2270 fps | 95.4% |
| ADI AR 2207 | <<locked>> | 80% | 51,126 psi | 85% | 2411 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 38,479 psi | 64% | 2316 fps | 95.6% |
| ADI AR 2219 | <<locked>> | 80% | 46,021 psi | 76% | 2448 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 37,289 psi | 62% | 2287 fps | 97.4% |
| Alliant AR-Comp | <<locked>> | 80% | 35,723 psi | 59% | 2297 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 42,801 psi | 71% | 2461 fps | 98.2% |
| Alliant Power Pro 2000-MR | 42.5 gr | 88% | 41,263 psi | 69% | 2474 fps | 95.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 32,837 psi | 55% | 2244 fps | 95.8% |
| Alliant Reloder-10x | <<locked>> | 80% | 43,671 psi | 73% | 2365 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 37,971 psi | 63% | 2346 fps | 95.7% |
| Alliant Reloder-16 | <<locked>> | 98% | 39,624 psi | 66% | 2418 fps | 95% |
| Alliant Reloder-17 | <<locked>> | 90% | 34,708 psi | 58% | 2346 fps | 95.2% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 45,556 psi | 76% | 2349 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 38,943 psi | 65% | 2362 fps | 95.2% |
| Bofors RP3 | <<locked>> | 84% | 31,966 psi | 53% | 2241 fps | 95.6% |
| Hodgdon Benchmark | <<locked>> | 80% | 39,392 psi | 65% | 2287 fps | 98.4% |
| Hodgdon BL-C2 | <<locked>> | 80% | 34,853 psi | 58% | 2293 fps | 97.4% |
| Hodgdon CFE223 | <<locked>> | 80% | 38,334 psi | 64% | 2402 fps | 95.7% |
| Hodgdon H322 | <<locked>> | 80% | 42,192 psi | 70% | 2385 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 42,714 psi | 71% | 2405 fps | 99.8% |
| Hodgdon H380 | <<locked>> | 92% | 43,294 psi | 72% | 2438 fps | 95.7% |
| Hodgdon H4895 | <<locked>> | 80% | 35,520 psi | 59% | 2280 fps | 96.2% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 33,765 psi | 56% | 2270 fps | 95% |
| Hodgdon LEVERevolution | 37.9 gr | 80% | 31,633 psi | 53% | 2241 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,353 psi | 42% | 1355 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 34,127 psi | 57% | 2238 fps | 95.6% |
| IMR 3031 | <<locked>> | 80% | 33,953 psi | 56% | 2287 fps | 99.8% |
| IMR 4064 | <<locked>> | 84% | 35,824 psi | 60% | 2257 fps | 95% |
| IMR 4198 | <<locked>> | 80% | 44,599 psi | 74% | 2336 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 34,185 psi | 57% | 2280 fps | 95.2% |
| IMR 8208 XBR | <<locked>> | 80% | 37,289 psi | 62% | 2287 fps | 97.4% |
| Lovex D073.4 | <<locked>> | 80% | 50,604 psi | 84% | 2507 fps | 100% |
| Lovex D073.5 | <<locked>> | 80% | 41,263 psi | 69% | 2362 fps | 99% |
| Lovex D073.6 | <<locked>> | 80% | 33,272 psi | 55% | 2254 fps | 98% |
| Lovex S060 | <<locked>> | 80% | 36,419 psi | 61% | 2228 fps | 95.8% |
| Lovex S062 | <<locked>> | 80% | 31,154 psi | 52% | 2172 fps | 95.5% |
| Norma 200 | <<locked>> | 80% | 49,414 psi | 82% | 2425 fps | 100% |
| Norma 201 | <<locked>> | 80% | 34,679 psi | 58% | 2234 fps | 96.8% |
| Norma 202 | <<locked>> | 80% | 34,563 psi | 57% | 2251 fps | 98.9% |
| Norma 203B | <<locked>> | 84% | 34,954 psi | 58% | 2290 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 86% | 36,753 psi | 61% | 2343 fps | 95.6% |
| Ramshot TAC | <<locked>> | 86% | 44,976 psi | 75% | 2425 fps | 95.3% |
| Ramshot Wild Boar | <<locked>> | 80% | 35,824 psi | 60% | 2293 fps | 95.5% |
| Ramshot X-Terminator | <<locked>> | 80% | 40,350 psi | 67% | 2326 fps | 96.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,701 psi | 43% | 1391 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 41,858 psi | 70% | 2369 fps | 99.3% |
| ReloadSwiss RS 50 | <<locked>> | 96% | 50,430 psi | 84% | 2520 fps | 95.5% |
| ReloadSwiss RS 52 | 39.3 gr | 84% | 36,608 psi | 61% | 2379 fps | 95.2% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 28,689 psi | 48% | 2198 fps | 95.1% |
| Rottweil R 901 | <<locked>> | 80% | 38,101 psi | 63% | 2283 fps | 99.2% |
| Rottweil R 902 | <<locked>> | 80% | 33,011 psi | 55% | 2192 fps | 96.2% |
| Rottweil R 903 | <<locked>> | 86% | 32,155 psi | 53% | 2238 fps | 95.2% |
| Shooters World AR Plus | <<locked>> | 80% | 50,604 psi | 84% | 2507 fps | 100% |
| Shooters World Match Rifle | <<locked>> | 80% | 33,272 psi | 55% | 2254 fps | 98% |
| Shooters World Precision | <<locked>> | 80% | 31,154 psi | 52% | 2172 fps | 95.5% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 44,077 psi | 73% | 2379 fps | 98.5% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 51,488 psi | 86% | 2185 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 46,456 psi | 77% | 2454 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 35,911 psi | 60% | 2329 fps | 95.4% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 44,411 psi | 74% | 2379 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 42,670 psi | 71% | 2395 fps | 95.3% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 36,129 psi | 60% | 2287 fps | 95.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 36,434 psi | 61% | 2211 fps | 99.1% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 29,675 psi | 49% | 2090 fps | 98.5% |
| Somchem S321 | <<locked>> | 80% | 39,552 psi | 66% | 2352 fps | 98.2% |
| Somchem S335 | <<locked>> | 80% | 35,882 psi | 60% | 2218 fps | 99.5% |
| Somchem S341 | <<locked>> | 82% | 36,999 psi | 61% | 2300 fps | 95.8% |
| Somchem S355 | <<locked>> | 86% | 33,272 psi | 55% | 2244 fps | 95.3% |
| Somchem S365 | <<locked>> | 94% | 30,748 psi | 51% | 2260 fps | 95.4% |
| Vihtavuori N120 | <<locked>> | 80% | 51,068 psi | 85% | 2365 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 41,365 psi | 69% | 2283 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 36,419 psi | 61% | 2218 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 31,546 psi | 52% | 2192 fps | 99.8% |
| Vihtavuori N140 | <<locked>> | 80% | 32,648 psi | 54% | 2195 fps | 98.7% |
| Vihtavuori N150 | <<locked>> | 84% | 29,776 psi | 49% | 2146 fps | 95.6% |
| Vihtavuori N160 | <<locked>> | 98% | 41,133 psi | 68% | 2411 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 80% | 37,101 psi | 62% | 2283 fps | 97.5% |
| Vihtavuori N540 | <<locked>> | 80% | 31,154 psi | 52% | 2178 fps | 97.9% |
| Vihtavuori N550 | <<locked>> | 98% | 40,089 psi | 67% | 2415 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 35,012 psi | 58% | 2257 fps | 95.4% |
| Winchester 748 | <<locked>> | 80% | 35,795 psi | 59% | 2316 fps | 98% |
| Winchester StaBALL Match | <<locked>> | 80% | 32,735 psi | 54% | 2234 fps | 95.2% |
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 92 powders for .308 Win. Ackley Improved loaded with the .308 | 180gr | Speer TBBC. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,690 fps; across all powders the maximum-charge window runs from 1,519 fps to 2,690 fps. Alliant Reloder- TS 15.5 gives the best case fill at 100 %, and 92 of the 92 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (415 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 180.0 gr projectile in 0.308" calls for a 1:13.0 twist; slower twists will usually not stabilise this weight. Alliant Reloder- TS 15.5, Alliant Reloder-16, Alliant Reloder-17 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 LEVERevolution rank at the top here: for .308 Win. Ackley Improved with the .308 | 180gr | Speer TBBC 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.