Load Specifications
Load data in caliber .308 Win. Ackley Improved with .308 | 180gr | Winchester FailSafe bullet and 90 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% | 52,141 psi | 87% | 2477 fps | 100% |
| Accurate 2200 | <<locked>> | 82% | 52,533 psi | 87% | 2552 fps | 98.5% |
| Accurate 2230 | <<locked>> | 82% | 53,200 psi | 88% | 2566 fps | 98.8% |
| Accurate 2460 | <<locked>> | 88% | 54,157 psi | 90% | 2543 fps | 100% |
| Accurate 2495 | <<locked>> | 96% | 51,721 psi | 86% | 2526 fps | 100% |
| Accurate 2520 | <<locked>> | 90% | 51,634 psi | 86% | 2549 fps | 100% |
| Accurate 4064 | <<locked>> | 98% | 51,387 psi | 85% | 2559 fps | 100% |
| Accurate LT-30 | <<locked>> | 84% | 53,055 psi | 88% | 2431 fps | 100% |
| Accurate LT-32 | <<locked>> | 84% | 53,447 psi | 89% | 2454 fps | 100% |
| ADI AR 2206H | <<locked>> | 94% | 54,389 psi | 90% | 2598 fps | 99.3% |
| ADI AR 2207 | <<locked>> | 82% | 53,998 psi | 90% | 2448 fps | 100% |
| ADI AR 2208 | <<locked>> | 98% | 51,953 psi | 86% | 2543 fps | 98.5% |
| ADI AR 2219 | <<locked>> | 84% | 52,678 psi | 88% | 2539 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 92% | 53,940 psi | 90% | 2559 fps | 99.8% |
| Alliant AR-Comp | <<locked>> | 92% | 52,823 psi | 88% | 2543 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 86% | 51,909 psi | 86% | 2605 fps | 99.4% |
| Alliant Power Pro 2000-MR | <<locked>> | 96% | 53,635 psi | 89% | 2687 fps | 98.7% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 53,737 psi | 89% | 2602 fps | 99.7% |
| Alliant Reloder-10x | <<locked>> | 86% | 52,431 psi | 87% | 2487 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 96% | 51,721 psi | 86% | 2579 fps | 98.6% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 47,805 psi | 79% | 2602 fps | 98.9% |
| Baschieri & Pellagri 106 | <<locked>> | 84% | 51,488 psi | 86% | 2428 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 94% | 53,867 psi | 89% | 2605 fps | 98.5% |
| Bofors RP3ᴾ | <<locked>> | 100% | 54,215 psi | 90% | 2621 fps | 99.7% |
| Hodgdon Benchmark | <<locked>> | 90% | 52,910 psi | 88% | 2503 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 92% | 52,214 psi | 87% | 2585 fps | 99.9% |
| Hodgdon CFE223 | <<locked>> | 90% | 53,751 psi | 89% | 2664 fps | 99% |
| Hodgdon H322 | <<locked>> | 86% | 51,184 psi | 85% | 2516 fps | 100% |
| Hodgdon H335 | <<locked>> | 86% | 52,083 psi | 87% | 2543 fps | 100% |
| Hodgdon H380 | <<locked>> | 98% | 52,417 psi | 87% | 2579 fps | 97.6% |
| Hodgdon H4895 | <<locked>> | 92% | 51,547 psi | 86% | 2562 fps | 99.3% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 37,942 psi | 63% | 2359 fps | 96.5% |
| Hodgdon LEVERevolution | <<locked>> | 96% | 52,881 psi | 88% | 2631 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,171 psi | 57% | 1516 fps | 100% |
| Hodgdon VARGET | <<locked>> | 94% | 52,837 psi | 88% | 2562 fps | 99.4% |
| IMR 3031 | <<locked>> | 94% | 53,374 psi | 89% | 2592 fps | 100% |
| IMR 4064 | <<locked>> | 96% | 51,416 psi | 85% | 2526 fps | 98.6% |
| IMR 4198 | <<locked>> | 86% | 52,837 psi | 88% | 2448 fps | 100% |
| IMR 4895 | <<locked>> | 96% | 53,026 psi | 88% | 2612 fps | 99.2% |
| IMR 8208 XBR | <<locked>> | 92% | 53,940 psi | 90% | 2559 fps | 99.8% |
| Lovex D073.4 | <<locked>> | 82% | 53,940 psi | 90% | 2549 fps | 100% |
| Lovex D073.5 | <<locked>> | 88% | 54,099 psi | 90% | 2552 fps | 100% |
| Lovex D073.6 | <<locked>> | 94% | 53,011 psi | 88% | 2579 fps | 100% |
| Lovex S060 | <<locked>> | 92% | 51,721 psi | 86% | 2487 fps | 98.9% |
| Lovex S062 | <<locked>> | 98% | 53,940 psi | 90% | 2572 fps | 99.8% |
| Norma 200 | <<locked>> | 82% | 52,112 psi | 87% | 2457 fps | 100% |
| Norma 201 | <<locked>> | 94% | 53,214 psi | 88% | 2549 fps | 99.8% |
| Norma 202 | <<locked>> | 94% | 53,374 psi | 89% | 2556 fps | 100% |
| Norma 203B | <<locked>> | 98% | 54,114 psi | 90% | 2615 fps | 99.3% |
| Ramshot Big Game | <<locked>> | 96% | 50,937 psi | 85% | 2589 fps | 98.8% |
| Ramshot TAC | <<locked>> | 92% | 54,462 psi | 90% | 2569 fps | 97.3% |
| Ramshot Wild Boar | <<locked>> | 92% | 53,214 psi | 88% | 2589 fps | 99.1% |
| Ramshot X-Terminator | <<locked>> | 88% | 51,880 psi | 86% | 2513 fps | 98.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,403 psi | 57% | 1552 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 88% | 53,635 psi | 89% | 2546 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 98% | 53,635 psi | 89% | 2562 fps | 96.2% |
| ReloadSwiss RS 52 | <<locked>> | 94% | 51,126 psi | 85% | 2638 fps | 98.6% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 51,111 psi | 85% | 2667 fps | 100% |
| Rottweil R 901 | <<locked>> | 92% | 54,273 psi | 90% | 2536 fps | 100% |
| Rottweil R 902 | <<locked>> | 96% | 53,258 psi | 88% | 2543 fps | 99.7% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 50,270 psi | 84% | 2559 fps | 99.3% |
| Shooters World AR Plus | <<locked>> | 82% | 53,940 psi | 90% | 2549 fps | 100% |
| Shooters World Match Rifle | <<locked>> | 94% | 53,011 psi | 88% | 2579 fps | 100% |
| Shooters World Precision | <<locked>> | 98% | 53,940 psi | 90% | 2572 fps | 99.8% |
| Shooters World Tactical Rifle | <<locked>> | 86% | 53,911 psi | 90% | 2520 fps | 99.6% |
| SNPE Vectan BA6 1/2 | <<locked>> | 82% | 53,911 psi | 90% | 2211 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 84% | 53,200 psi | 88% | 2549 fps | 100% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 52,504 psi | 87% | 2618 fps | 99% |
| SNPE Vectan SP 3 | <<locked>> | 86% | 53,084 psi | 88% | 2500 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 92% | 52,243 psi | 87% | 2543 fps | 97.4% |
| SNPE Vectan SP 9 | <<locked>> | 94% | 52,837 psi | 88% | 2572 fps | 99.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 92% | 52,344 psi | 87% | 2461 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 98% | 51,648 psi | 86% | 2457 fps | 100% |
| Somchem S321 | <<locked>> | 88% | 51,605 psi | 86% | 2546 fps | 99.7% |
| Somchem S335 | <<locked>> | 92% | 51,358 psi | 85% | 2464 fps | 100% |
| Somchem S341 | <<locked>> | 92% | 51,459 psi | 85% | 2539 fps | 98.8% |
| Somchem S355ᴾ | <<locked>> | 100% | 51,256 psi | 85% | 2559 fps | 99.2% |
| Somchem S365ᴾ | <<locked>> | 100% | 36,651 psi | 61% | 2402 fps | 97.7% |
| Vihtavuori N120 | <<locked>> | 82% | 53,925 psi | 90% | 2398 fps | 100% |
| Vihtavuori N130 | <<locked>> | 88% | 52,359 psi | 87% | 2438 fps | 100% |
| Vihtavuori N133 | <<locked>> | 92% | 52,112 psi | 87% | 2451 fps | 100% |
| Vihtavuori N135 | <<locked>> | 96% | 51,895 psi | 86% | 2516 fps | 100% |
| Vihtavuori N140 | <<locked>> | 96% | 53,679 psi | 89% | 2536 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 49,530 psi | 82% | 2503 fps | 99.7% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 43,801 psi | 73% | 2457 fps | 96.1% |
| Vihtavuori N530 | <<locked>> | 92% | 54,360 psi | 90% | 2559 fps | 99.8% |
| Vihtavuori N540 | <<locked>> | 96% | 51,808 psi | 86% | 2533 fps | 100% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 45,092 psi | 75% | 2448 fps | 98.3% |
| Winchester 748 | <<locked>> | 92% | 53,069 psi | 88% | 2598 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 94% | 52,156 psi | 87% | 2575 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% | 38,406 psi | 64% | 2274 fps | 100% |
| Accurate 2200 | <<locked>> | 80% | 49,255 psi | 82% | 2503 fps | 97.9% |
| Accurate 2230 | <<locked>> | 80% | 49,501 psi | 82% | 2510 fps | 98.3% |
| Accurate 2460 | <<locked>> | 80% | 41,510 psi | 69% | 2359 fps | 99.7% |
| Accurate 2495 | <<locked>> | 80% | 30,850 psi | 51% | 2185 fps | 99.8% |
| Accurate 2520 | <<locked>> | 80% | 36,593 psi | 61% | 2306 fps | 98.8% |
| Accurate 4064 | <<locked>> | 80% | 29,225 psi | 49% | 2165 fps | 97.9% |
| Accurate LT-30 | <<locked>> | 80% | 46,804 psi | 78% | 2349 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 47,181 psi | 78% | 2365 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 80% | 35,012 psi | 58% | 2260 fps | 95.3% |
| ADI AR 2207 | <<locked>> | 80% | 51,010 psi | 85% | 2408 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 38,377 psi | 64% | 2313 fps | 95.5% |
| ADI AR 2219 | <<locked>> | 80% | 45,963 psi | 76% | 2444 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 36,970 psi | 61% | 2280 fps | 97.3% |
| Alliant AR-Comp | <<locked>> | 80% | 35,621 psi | 59% | 2293 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 42,409 psi | 70% | 2451 fps | 98.1% |
| Alliant Power Pro 2000-MR | 42.4 gr | 88% | 41,263 psi | 69% | 2474 fps | 95.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 32,547 psi | 54% | 2238 fps | 95.6% |
| Alliant Reloder-10x | <<locked>> | 80% | 43,569 psi | 72% | 2362 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 37,869 psi | 63% | 2343 fps | 95.7% |
| Alliant Reloder-17 | <<locked>> | 90% | 34,664 psi | 58% | 2343 fps | 95.2% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 45,513 psi | 76% | 2346 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 38,638 psi | 64% | 2356 fps | 95.1% |
| Bofors RP3 | <<locked>> | 84% | 31,894 psi | 53% | 2238 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 80% | 39,334 psi | 65% | 2283 fps | 98.3% |
| Hodgdon BL-C2 | <<locked>> | 80% | 34,751 psi | 58% | 2290 fps | 97.4% |
| Hodgdon CFE223 | <<locked>> | 80% | 38,290 psi | 64% | 2398 fps | 95.7% |
| Hodgdon H322 | <<locked>> | 80% | 42,105 psi | 70% | 2382 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 42,598 psi | 71% | 2402 fps | 99.8% |
| Hodgdon H380 | <<locked>> | 92% | 43,250 psi | 72% | 2434 fps | 95.7% |
| Hodgdon H4895 | <<locked>> | 80% | 35,201 psi | 58% | 2274 fps | 96.1% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 35,636 psi | 59% | 2313 fps | 95.7% |
| Hodgdon LEVERevolution | 37.8 gr | 80% | 31,589 psi | 52% | 2238 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,440 psi | 42% | 1355 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 34,040 psi | 57% | 2234 fps | 95.5% |
| IMR 3031 | <<locked>> | 80% | 33,881 psi | 56% | 2283 fps | 99.8% |
| IMR 4064 | <<locked>> | 86% | 37,797 psi | 63% | 2297 fps | 95.6% |
| IMR 4198 | <<locked>> | 80% | 44,483 psi | 74% | 2333 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 34,084 psi | 57% | 2277 fps | 95.1% |
| IMR 8208 XBR | <<locked>> | 80% | 36,970 psi | 61% | 2280 fps | 97.3% |
| Lovex D073.4 | <<locked>> | 80% | 50,154 psi | 83% | 2497 fps | 100% |
| Lovex D073.5 | <<locked>> | 80% | 41,147 psi | 68% | 2359 fps | 99% |
| Lovex D073.6 | <<locked>> | 80% | 32,967 psi | 55% | 2244 fps | 97.9% |
| Lovex S060 | <<locked>> | 80% | 36,303 psi | 60% | 2224 fps | 95.7% |
| Lovex S062 | <<locked>> | 80% | 31,053 psi | 52% | 2169 fps | 95.5% |
| Norma 200 | <<locked>> | 80% | 49,284 psi | 82% | 2421 fps | 100% |
| Norma 201 | <<locked>> | 80% | 34,577 psi | 57% | 2231 fps | 96.7% |
| Norma 202 | <<locked>> | 80% | 34,461 psi | 57% | 2247 fps | 98.8% |
| Norma 203B | <<locked>> | 84% | 34,911 psi | 58% | 2287 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 86% | 36,724 psi | 61% | 2339 fps | 95.5% |
| Ramshot TAC | <<locked>> | 86% | 44,933 psi | 75% | 2421 fps | 95.2% |
| Ramshot Wild Boar | <<locked>> | 80% | 35,752 psi | 59% | 2290 fps | 95.5% |
| Ramshot X-Terminator | <<locked>> | 80% | 40,277 psi | 67% | 2323 fps | 96.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,512 psi | 42% | 1385 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 41,785 psi | 69% | 2365 fps | 99.3% |
| ReloadSwiss RS 50 | <<locked>> | 96% | 50,067 psi | 83% | 2513 fps | 95.4% |
| ReloadSwiss RS 52 | 39.2 gr | 84% | 36,506 psi | 61% | 2375 fps | 95.1% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 28,674 psi | 48% | 2195 fps | 95% |
| Rottweil R 901 | <<locked>> | 80% | 38,014 psi | 63% | 2280 fps | 99.2% |
| Rottweil R 902 | <<locked>> | 80% | 32,938 psi | 55% | 2188 fps | 96.1% |
| Rottweil R 903 | <<locked>> | 86% | 31,792 psi | 53% | 2228 fps | 95.1% |
| Shooters World AR Plus | <<locked>> | 80% | 50,154 psi | 83% | 2497 fps | 100% |
| Shooters World Match Rifle | <<locked>> | 80% | 32,967 psi | 55% | 2244 fps | 97.9% |
| Shooters World Precision | <<locked>> | 80% | 31,053 psi | 52% | 2169 fps | 95.5% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 44,005 psi | 73% | 2375 fps | 98.5% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 51,343 psi | 85% | 2182 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 46,383 psi | 77% | 2454 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 35,868 psi | 60% | 2326 fps | 95.3% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 44,280 psi | 74% | 2375 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 42,598 psi | 71% | 2392 fps | 95.3% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 36,027 psi | 60% | 2287 fps | 95.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 36,332 psi | 60% | 2208 fps | 99.1% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 29,602 psi | 49% | 2087 fps | 98.4% |
| Somchem S321 | <<locked>> | 80% | 39,450 psi | 66% | 2352 fps | 98.2% |
| Somchem S335 | <<locked>> | 80% | 35,795 psi | 59% | 2215 fps | 99.5% |
| Somchem S341 | <<locked>> | 82% | 36,941 psi | 61% | 2297 fps | 95.8% |
| Somchem S355 | <<locked>> | 86% | 33,170 psi | 55% | 2241 fps | 95.3% |
| Somchem S365 | <<locked>> | 94% | 30,472 psi | 51% | 2251 fps | 95.2% |
| Vihtavuori N120 | <<locked>> | 80% | 50,966 psi | 85% | 2362 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 41,278 psi | 69% | 2283 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 36,332 psi | 60% | 2215 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 31,459 psi | 52% | 2188 fps | 99.8% |
| Vihtavuori N140 | <<locked>> | 80% | 32,532 psi | 54% | 2192 fps | 98.7% |
| Vihtavuori N150 | <<locked>> | 84% | 29,515 psi | 49% | 2139 fps | 95.5% |
| Vihtavuori N160 | <<locked>> | 98% | 41,075 psi | 68% | 2408 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 80% | 36,738 psi | 61% | 2274 fps | 97.3% |
| Vihtavuori N540 | <<locked>> | 80% | 31,053 psi | 52% | 2172 fps | 97.8% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 34,766 psi | 58% | 2251 fps | 95.3% |
| Winchester 748 | <<locked>> | 80% | 35,476 psi | 59% | 2306 fps | 97.9% |
| Winchester StaBALL Match | <<locked>> | 80% | 32,692 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 90 powders for .308 Win. Ackley Improved loaded with the .308 | 180gr | Winchester FailSafe. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,687 fps; across all powders the maximum-charge window runs from 1,516 fps to 2,687 fps. Alliant Reloder- TS 15.5 gives the best case fill at 100 %, and 90 of the 90 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-17, Bofors RP3 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 | Winchester FailSafe 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.