Load Specifications
Load data in caliber .308 Win. Ackley Improved with .311 | 180gr | Sellier & Bellot SPRN 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 ReloadSwiss RS 60.
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>> | 88% | 52,460 psi | 87% | 2507 fps | 100% |
| Accurate 2460 | <<locked>> | 86% | 54,360 psi | 90% | 2575 fps | 100% |
| Accurate 2495 | <<locked>> | 94% | 52,910 psi | 88% | 2566 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 52,156 psi | 87% | 2585 fps | 100% |
| Accurate 4064 | <<locked>> | 96% | 52,460 psi | 87% | 2602 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 44,599 psi | 74% | 2552 fps | 97.3% |
| Accurate LT-30 | <<locked>> | 82% | 52,547 psi | 87% | 2457 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 53,011 psi | 88% | 2480 fps | 100% |
| ADI AR 2206H | <<locked>> | 90% | 51,314 psi | 85% | 2585 fps | 99.3% |
| ADI AR 2208 | <<locked>> | 96% | 52,373 psi | 87% | 2582 fps | 98.9% |
| ADI AR 2219 | <<locked>> | 82% | 52,547 psi | 87% | 2566 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 90% | 53,969 psi | 90% | 2592 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 90% | 53,650 psi | 89% | 2575 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 52,098 psi | 87% | 2641 fps | 99.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 94% | 53,882 psi | 90% | 2733 fps | 99.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 51,459 psi | 85% | 2602 fps | 99.7% |
| Alliant Reloder-10x | <<locked>> | 84% | 52,402 psi | 87% | 2513 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 52,344 psi | 87% | 2621 fps | 99.1% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 44,875 psi | 75% | 2559 fps | 97.4% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 51,503 psi | 86% | 2700 fps | 99.7% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 51,532 psi | 86% | 2457 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 92% | 54,331 psi | 90% | 2648 fps | 98.9% |
| Bofors RP3 | <<locked>> | 96% | 51,329 psi | 85% | 2612 fps | 99.8% |
| Hodgdon Benchmark | <<locked>> | 88% | 53,055 psi | 88% | 2536 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 90% | 52,736 psi | 88% | 2621 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 88% | 54,375 psi | 90% | 2707 fps | 99.3% |
| Hodgdon H322 | <<locked>> | 84% | 51,488 psi | 86% | 2549 fps | 100% |
| Hodgdon H335 | <<locked>> | 84% | 52,272 psi | 87% | 2572 fps | 100% |
| Hodgdon H380 | <<locked>> | 96% | 52,997 psi | 88% | 2618 fps | 98.2% |
| Hodgdon H4895 | <<locked>> | 90% | 51,721 psi | 86% | 2595 fps | 99.6% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 41,046 psi | 68% | 2454 fps | 98% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 53,563 psi | 89% | 2671 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,519 psi | 57% | 1549 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 53,055 psi | 88% | 2598 fps | 99.6% |
| IMR 3031 | <<locked>> | 92% | 54,331 psi | 90% | 2631 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 51,706 psi | 86% | 2566 fps | 99% |
| IMR 4166 Enduron | <<locked>> | 92% | 52,576 psi | 87% | 2543 fps | 95.9% |
| IMR 4198 | <<locked>> | 84% | 52,953 psi | 88% | 2477 fps | 100% |
| IMR 4831ᴾ | <<locked>> | 100% | 42,873 psi | 71% | 2503 fps | 96.9% |
| IMR 4895 | <<locked>> | 94% | 53,693 psi | 89% | 2651 fps | 99.6% |
| IMR 8208 XBR | <<locked>> | 90% | 53,969 psi | 90% | 2592 fps | 99.9% |
| Lovex D073.5 | <<locked>> | 86% | 54,128 psi | 90% | 2582 fps | 100% |
| Lovex D073.6 | <<locked>> | 92% | 53,432 psi | 89% | 2612 fps | 100% |
| Lovex S060 | <<locked>> | 90% | 51,764 psi | 86% | 2523 fps | 99.3% |
| Lovex S062 | <<locked>> | 94% | 51,140 psi | 85% | 2566 fps | 99.8% |
| Lovex S065ᴾ | <<locked>> | 100% | 50,096 psi | 83% | 2549 fps | 96.9% |
| Norma 201 | <<locked>> | 92% | 53,330 psi | 89% | 2582 fps | 99.9% |
| Norma 202 | <<locked>> | 92% | 53,882 psi | 90% | 2592 fps | 100% |
| Norma 203B | <<locked>> | 94% | 51,488 psi | 86% | 2612 fps | 99.3% |
| Norma URPᴾ | <<locked>> | 100% | 44,701 psi | 74% | 2546 fps | 97.1% |
| Ramshot Big Game | <<locked>> | 94% | 51,372 psi | 85% | 2628 fps | 99.2% |
| Ramshot TAC | <<locked>> | 88% | 51,242 psi | 85% | 2556 fps | 97.3% |
| Ramshot Wild Boar | <<locked>> | 90% | 53,534 psi | 89% | 2625 fps | 99.4% |
| Ramshot X-Terminator | <<locked>> | 86% | 52,025 psi | 86% | 2549 fps | 99.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,780 psi | 58% | 1585 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 53,853 psi | 89% | 2582 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 96% | 53,896 psi | 90% | 2605 fps | 96.8% |
| ReloadSwiss RS 52 | <<locked>> | 92% | 51,648 psi | 86% | 2674 fps | 99% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 51,517 psi | 86% | 2707 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 44,483 psi | 74% | 2569 fps | 96.8% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 45,730 psi | 76% | 2582 fps | 96.1% |
| Rottweil R 901 | <<locked>> | 88% | 51,445 psi | 85% | 2530 fps | 100% |
| Rottweil R 902 | <<locked>> | 94% | 53,679 psi | 89% | 2579 fps | 99.9% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 54,462 psi | 90% | 2644 fps | 99.8% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 50,096 psi | 83% | 2549 fps | 96.9% |
| Shooters World Match Rifle | <<locked>> | 92% | 53,432 psi | 89% | 2612 fps | 100% |
| Shooters World Precision | <<locked>> | 94% | 51,140 psi | 85% | 2566 fps | 99.8% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 53,867 psi | 89% | 2552 fps | 99.8% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 53,171 psi | 88% | 2579 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 98% | 52,895 psi | 88% | 2657 fps | 99.4% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 53,345 psi | 89% | 2533 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 90% | 52,518 psi | 87% | 2582 fps | 98% |
| SNPE Vectan SP 9 | <<locked>> | 92% | 52,852 psi | 88% | 2605 fps | 99.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 52,663 psi | 87% | 2497 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 51,866 psi | 86% | 2490 fps | 100% |
| Somchem S321 | <<locked>> | 86% | 51,895 psi | 86% | 2582 fps | 99.9% |
| Somchem S335 | <<locked>> | 90% | 51,576 psi | 86% | 2493 fps | 100% |
| Somchem S341 | <<locked>> | 90% | 51,808 psi | 86% | 2575 fps | 99.2% |
| Somchem S355 | <<locked>> | 98% | 52,098 psi | 87% | 2605 fps | 99.6% |
| Somchem S365ᴾ | <<locked>> | 100% | 39,827 psi | 66% | 2497 fps | 99% |
| Vihtavuori N130 | <<locked>> | 86% | 52,388 psi | 87% | 2467 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 52,562 psi | 87% | 2487 fps | 100% |
| Vihtavuori N135 | <<locked>> | 94% | 52,779 psi | 88% | 2552 fps | 100% |
| Vihtavuori N140 | <<locked>> | 94% | 54,288 psi | 90% | 2572 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 53,316 psi | 89% | 2585 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 47,355 psi | 79% | 2549 fps | 97.6% |
| Vihtavuori N530 | <<locked>> | 88% | 51,184 psi | 85% | 2546 fps | 99.8% |
| Vihtavuori N540 | <<locked>> | 94% | 52,533 psi | 87% | 2572 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 46,137 psi | 77% | 2549 fps | 97.2% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 48,631 psi | 81% | 2539 fps | 99.3% |
| Winchester 748 | <<locked>> | 90% | 53,751 psi | 89% | 2638 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 92% | 52,475 psi | 87% | 2615 fps | 99.7% |
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% | 41,031 psi | 68% | 2343 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 44,396 psi | 74% | 2434 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 33,402 psi | 55% | 2257 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 39,697 psi | 66% | 2388 fps | 99.5% |
| Accurate 4064 | <<locked>> | 80% | 31,633 psi | 53% | 2241 fps | 98.9% |
| Accurate 4350 | <<locked>> | 96% | 38,653 psi | 64% | 2444 fps | 95.7% |
| Accurate LT-30 | <<locked>> | 80% | 49,313 psi | 82% | 2415 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 49,632 psi | 82% | 2431 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 37,695 psi | 63% | 2346 fps | 96.7% |
| ADI AR 2208 | <<locked>> | 84% | 36,260 psi | 60% | 2300 fps | 95.4% |
| ADI AR 2219 | <<locked>> | 80% | 49,139 psi | 82% | 2516 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 39,668 psi | 66% | 2362 fps | 98.4% |
| Alliant AR-Comp | <<locked>> | 80% | 38,479 psi | 64% | 2362 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 45,803 psi | 76% | 2539 fps | 99% |
| Alliant Power Pro 2000-MR | 43.4 gr | 84% | 38,696 psi | 64% | 2454 fps | 95.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 30,908 psi | 51% | 2221 fps | 95.5% |
| Alliant Reloder-10x | <<locked>> | 80% | 46,543 psi | 77% | 2431 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 35,665 psi | 59% | 2326 fps | 95.5% |
| Alliant Reloder-16 | <<locked>> | 94% | 37,550 psi | 62% | 2408 fps | 95% |
| Alliant Reloder-17 | <<locked>> | 86% | 32,634 psi | 54% | 2326 fps | 95% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 48,182 psi | 80% | 2411 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 36,361 psi | 60% | 2336 fps | 95% |
| Bofors RP3 | <<locked>> | 80% | 30,255 psi | 50% | 2221 fps | 95.4% |
| Hodgdon Benchmark | <<locked>> | 80% | 41,756 psi | 69% | 2359 fps | 99.1% |
| Hodgdon BL-C2 | <<locked>> | 80% | 37,550 psi | 62% | 2372 fps | 98.5% |
| Hodgdon CFE223 | <<locked>> | 80% | 41,292 psi | 69% | 2490 fps | 97.2% |
| Hodgdon H322 | <<locked>> | 80% | 45,034 psi | 75% | 2457 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 45,643 psi | 76% | 2477 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 40,915 psi | 68% | 2421 fps | 95.6% |
| Hodgdon H4895 | <<locked>> | 80% | 37,927 psi | 63% | 2356 fps | 97.4% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 31,995 psi | 53% | 2260 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 33,779 psi | 56% | 2320 fps | 96.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,802 psi | 43% | 1385 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 36,376 psi | 60% | 2310 fps | 96.9% |
| IMR 3031 | <<locked>> | 80% | 36,782 psi | 61% | 2362 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 35,839 psi | 60% | 2287 fps | 95.6% |
| IMR 4166 Enduron | <<locked>> | 90% | 49,342 psi | 82% | 2493 fps | 95.1% |
| IMR 4198 | <<locked>> | 80% | 47,253 psi | 79% | 2398 fps | 100% |
| IMR 4831 | <<locked>> | 96% | 37,492 psi | 62% | 2402 fps | 95.4% |
| IMR 4895 | <<locked>> | 80% | 34,374 psi | 57% | 2310 fps | 95.8% |
| IMR 8208 XBR | <<locked>> | 80% | 39,668 psi | 66% | 2362 fps | 98.4% |
| Lovex D073.5 | <<locked>> | 80% | 44,222 psi | 73% | 2438 fps | 99.6% |
| Lovex D073.6 | <<locked>> | 80% | 35,969 psi | 60% | 2329 fps | 99% |
| Lovex S060 | <<locked>> | 80% | 38,392 psi | 64% | 2297 fps | 96.9% |
| Lovex S062 | <<locked>> | 80% | 33,243 psi | 55% | 2244 fps | 96.8% |
| Lovex S065 | <<locked>> | 96% | 44,382 psi | 74% | 2457 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 36,854 psi | 61% | 2306 fps | 97.8% |
| Norma 202 | <<locked>> | 80% | 36,767 psi | 61% | 2320 fps | 99.5% |
| Norma 203B | <<locked>> | 80% | 33,025 psi | 55% | 2270 fps | 95.2% |
| Norma URP | <<locked>> | 96% | 39,465 psi | 66% | 2448 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 82% | 34,548 psi | 57% | 2323 fps | 95.4% |
| Ramshot TAC | <<locked>> | 82% | 42,235 psi | 70% | 2405 fps | 95.1% |
| Ramshot Wild Boar | <<locked>> | 80% | 38,406 psi | 64% | 2372 fps | 96.9% |
| Ramshot X-Terminator | <<locked>> | 80% | 42,931 psi | 71% | 2402 fps | 97.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,860 psi | 43% | 1417 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 44,338 psi | 74% | 2438 fps | 99.8% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 47,413 psi | 79% | 2507 fps | 95.5% |
| ReloadSwiss RS 52 | 41 gr | 82% | 36,782 psi | 61% | 2411 fps | 95.9% |
| ReloadSwiss RS 60 | 40.7 gr | 80% | 28,776 psi | 48% | 2231 fps | 95.9% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 39,015 psi | 65% | 2467 fps | 95.2% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 42,859 psi | 71% | 2530 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 40,582 psi | 67% | 2356 fps | 99.7% |
| Rottweil R 902 | <<locked>> | 80% | 35,201 psi | 58% | 2264 fps | 97.4% |
| Rottweil R 903 | <<locked>> | 82% | 30,400 psi | 51% | 2218 fps | 95.1% |
| Shooters World Long Rifle | <<locked>> | 96% | 44,382 psi | 74% | 2457 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 35,969 psi | 60% | 2329 fps | 99% |
| Shooters World Precision | <<locked>> | 80% | 33,243 psi | 55% | 2244 fps | 96.8% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 46,949 psi | 78% | 2454 fps | 99.2% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 49,545 psi | 82% | 2530 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 33,765 psi | 56% | 2310 fps | 95.2% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 47,253 psi | 79% | 2448 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 39,900 psi | 66% | 2372 fps | 95.1% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 36,042 psi | 60% | 2313 fps | 96.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 38,696 psi | 64% | 2280 fps | 99.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 31,720 psi | 53% | 2159 fps | 99.2% |
| Somchem S321 | <<locked>> | 80% | 42,279 psi | 70% | 2431 fps | 99.1% |
| Somchem S335 | <<locked>> | 80% | 37,985 psi | 63% | 2283 fps | 99.9% |
| Somchem S341 | <<locked>> | 80% | 36,985 psi | 61% | 2326 fps | 96.4% |
| Somchem S355 | <<locked>> | 82% | 31,676 psi | 53% | 2231 fps | 95.3% |
| Somchem S365 | <<locked>> | 90% | 29,225 psi | 49% | 2251 fps | 95.4% |
| Vihtavuori N130 | <<locked>> | 80% | 43,888 psi | 73% | 2349 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 38,783 psi | 64% | 2283 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 34,011 psi | 57% | 2260 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 34,954 psi | 58% | 2267 fps | 99.4% |
| Vihtavuori N150 | <<locked>> | 80% | 28,152 psi | 47% | 2129 fps | 95.4% |
| Vihtavuori N160 | <<locked>> | 94% | 39,131 psi | 65% | 2405 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 80% | 39,494 psi | 66% | 2356 fps | 98.4% |
| Vihtavuori N540 | <<locked>> | 80% | 33,460 psi | 56% | 2251 fps | 98.8% |
| Vihtavuori N550 | <<locked>> | 94% | 38,232 psi | 64% | 2408 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 32,851 psi | 55% | 2241 fps | 95.3% |
| Winchester 748 | <<locked>> | 80% | 38,363 psi | 64% | 2392 fps | 98.9% |
| Winchester StaBALL Match | <<locked>> | 80% | 35,259 psi | 59% | 2316 fps | 96.7% |
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 .311 | 180gr | Sellier & Bellot SPRN. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,733 fps; across all powders the maximum-charge window runs from 1,549 fps to 2,733 fps. Accurate 4350 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 0.311" calls for a 1:16.5 twist; slower twists will usually not stabilise this weight. Accurate 4350, 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, ReloadSwiss RS 60 rank at the top here: for .308 Win. Ackley Improved with the .311 | 180gr | Sellier & Bellot SPRN 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.