Load Specifications
Load data in caliber .308 Win. Ackley Improved with .311 | 174gr | Frontier PH HPFB 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% | 52,837 psi | 88% | 2520 fps | 100% |
| Accurate 2200 | <<locked>> | 84% | 53,751 psi | 89% | 2602 fps | 98.2% |
| Accurate 2230 | <<locked>> | 84% | 54,360 psi | 90% | 2612 fps | 98.5% |
| Accurate 2460 | <<locked>> | 88% | 51,184 psi | 85% | 2539 fps | 100% |
| Accurate 2495 | <<locked>> | 98% | 51,938 psi | 86% | 2566 fps | 100% |
| Accurate 2520 | <<locked>> | 92% | 51,938 psi | 86% | 2585 fps | 100% |
| Accurate 4064ᴾ | <<locked>> | 100% | 51,547 psi | 86% | 2598 fps | 100% |
| Accurate LT-30 | <<locked>> | 86% | 54,041 psi | 90% | 2477 fps | 100% |
| Accurate LT-32 | <<locked>> | 86% | 54,462 psi | 90% | 2497 fps | 100% |
| ADI AR 2206H | <<locked>> | 94% | 51,619 psi | 86% | 2585 fps | 98.6% |
| ADI AR 2207 | <<locked>> | 82% | 51,634 psi | 86% | 2454 fps | 100% |
| ADI AR 2208ᴾ | <<locked>> | 100% | 52,605 psi | 87% | 2579 fps | 98.1% |
| ADI AR 2219 | <<locked>> | 86% | 53,461 psi | 89% | 2582 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 92% | 51,213 psi | 85% | 2552 fps | 99.3% |
| Alliant AR-Comp | <<locked>> | 94% | 53,388 psi | 89% | 2589 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 88% | 52,504 psi | 87% | 2648 fps | 99.2% |
| Alliant Power Pro 2000-MR | <<locked>> | 98% | 54,462 psi | 90% | 2726 fps | 98.2% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 50,807 psi | 84% | 2595 fps | 99.1% |
| Alliant Reloder-10x | <<locked>> | 88% | 53,113 psi | 88% | 2533 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 98% | 52,214 psi | 87% | 2618 fps | 98.3% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 45,150 psi | 75% | 2582 fps | 97.8% |
| Alliant Reloder-7 | <<locked>> | 82% | 52,779 psi | 88% | 2470 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 86% | 52,823 psi | 88% | 2477 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 94% | 51,213 psi | 85% | 2598 fps | 97.5% |
| Bofors RP3ᴾ | <<locked>> | 100% | 50,763 psi | 84% | 2605 fps | 99.2% |
| Hodgdon Benchmark | <<locked>> | 92% | 53,867 psi | 89% | 2546 fps | 99.8% |
| Hodgdon BL-C2 | <<locked>> | 94% | 52,678 psi | 88% | 2625 fps | 99.7% |
| Hodgdon CFE223 | <<locked>> | 90% | 50,865 psi | 85% | 2651 fps | 98.1% |
| Hodgdon H322 | <<locked>> | 88% | 51,909 psi | 86% | 2562 fps | 100% |
| Hodgdon H335 | <<locked>> | 88% | 52,910 psi | 88% | 2585 fps | 100% |
| Hodgdon H380ᴾ | <<locked>> | 100% | 53,011 psi | 88% | 2615 fps | 97.1% |
| Hodgdon H4198 | <<locked>> | 82% | 52,750 psi | 88% | 2477 fps | 100% |
| Hodgdon H4895 | <<locked>> | 94% | 51,953 psi | 86% | 2598 fps | 99% |
| Hodgdon LEVERevolution | <<locked>> | 98% | 53,388 psi | 89% | 2667 fps | 99.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,997 psi | 56% | 1529 fps | 100% |
| Hodgdon VARGET | <<locked>> | 96% | 53,795 psi | 89% | 2605 fps | 99.1% |
| IMR 3031 | <<locked>> | 96% | 53,940 psi | 90% | 2638 fps | 100% |
| IMR 4064 | <<locked>> | 98% | 51,953 psi | 86% | 2562 fps | 98.2% |
| IMR 4198 | <<locked>> | 88% | 53,621 psi | 89% | 2493 fps | 100% |
| IMR 4895 | <<locked>> | 98% | 53,461 psi | 89% | 2648 fps | 98.9% |
| IMR 8208 XBR | <<locked>> | 92% | 51,213 psi | 85% | 2552 fps | 99.3% |
| Lovex D073.4 | <<locked>> | 82% | 51,140 psi | 85% | 2543 fps | 99.9% |
| Lovex D073.5 | <<locked>> | 88% | 51,169 psi | 85% | 2546 fps | 99.7% |
| Lovex D073.6 | <<locked>> | 96% | 53,403 psi | 89% | 2615 fps | 100% |
| Lovex S060 | <<locked>> | 94% | 52,707 psi | 88% | 2530 fps | 98.7% |
| Lovex S062ᴾ | <<locked>> | 100% | 54,389 psi | 90% | 2608 fps | 99.6% |
| Norma 200 | <<locked>> | 84% | 53,069 psi | 88% | 2507 fps | 100% |
| Norma 201 | <<locked>> | 96% | 53,708 psi | 89% | 2589 fps | 99.6% |
| Norma 202 | <<locked>> | 96% | 53,824 psi | 89% | 2598 fps | 100% |
| Norma 203B | <<locked>> | 98% | 51,256 psi | 85% | 2605 fps | 98.6% |
| Ramshot Big Game | <<locked>> | 98% | 51,561 psi | 86% | 2625 fps | 98.4% |
| Ramshot TAC | <<locked>> | 92% | 51,982 psi | 86% | 2559 fps | 96.2% |
| Ramshot Wild Boar | <<locked>> | 94% | 54,157 psi | 90% | 2631 fps | 98.8% |
| Ramshot X-Terminator | <<locked>> | 90% | 52,852 psi | 88% | 2556 fps | 98.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,214 psi | 57% | 1568 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 88% | 51,169 psi | 85% | 2546 fps | 99.9% |
| ReloadSwiss RS 52 | <<locked>> | 96% | 51,503 psi | 86% | 2671 fps | 98.2% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 48,341 psi | 80% | 2651 fps | 99.9% |
| Rottweil R 901 | <<locked>> | 92% | 51,706 psi | 86% | 2536 fps | 100% |
| Rottweil R 902 | <<locked>> | 98% | 53,766 psi | 89% | 2579 fps | 99.5% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 47,369 psi | 79% | 2546 fps | 98.5% |
| Shooters World AR Plus | <<locked>> | 82% | 51,140 psi | 85% | 2543 fps | 99.9% |
| Shooters World Match Rifle | <<locked>> | 96% | 53,403 psi | 89% | 2615 fps | 100% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 54,389 psi | 90% | 2608 fps | 99.6% |
| Shooters World Tactical Rifle | <<locked>> | 86% | 51,561 psi | 86% | 2516 fps | 99.1% |
| SNPE Vectan BA6 1/2 | <<locked>> | 82% | 52,141 psi | 87% | 2224 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 86% | 53,969 psi | 90% | 2592 fps | 100% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 49,516 psi | 82% | 2602 fps | 98.2% |
| SNPE Vectan SP 3 | <<locked>> | 88% | 53,766 psi | 89% | 2543 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 94% | 52,881 psi | 88% | 2579 fps | 96.9% |
| SNPE Vectan SP 9 | <<locked>> | 96% | 53,388 psi | 89% | 2608 fps | 98.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 94% | 53,359 psi | 89% | 2503 fps | 100% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 52,286 psi | 87% | 2497 fps | 100% |
| Somchem S321 | <<locked>> | 90% | 52,388 psi | 87% | 2589 fps | 99.6% |
| Somchem S335 | <<locked>> | 94% | 51,851 psi | 86% | 2500 fps | 100% |
| Somchem S341 | <<locked>> | 94% | 52,431 psi | 87% | 2579 fps | 98.5% |
| Somchem S355ᴾ | <<locked>> | 100% | 48,443 psi | 80% | 2549 fps | 98.5% |
| Somchem S365ᴾ | <<locked>> | 100% | 34,693 psi | 58% | 2379 fps | 96.3% |
| Vihtavuori N120 | <<locked>> | 82% | 51,590 psi | 86% | 2408 fps | 100% |
| Vihtavuori N130 | <<locked>> | 90% | 53,200 psi | 88% | 2484 fps | 100% |
| Vihtavuori N133 | <<locked>> | 94% | 52,968 psi | 88% | 2497 fps | 100% |
| Vihtavuori N135 | <<locked>> | 98% | 52,141 psi | 87% | 2556 fps | 100% |
| Vihtavuori N140 | <<locked>> | 98% | 54,215 psi | 90% | 2575 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 46,775 psi | 78% | 2493 fps | 99.2% |
| Vihtavuori N530 | <<locked>> | 92% | 51,909 psi | 86% | 2556 fps | 99.4% |
| Vihtavuori N540 | <<locked>> | 98% | 52,330 psi | 87% | 2572 fps | 100% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 42,873 psi | 71% | 2431 fps | 97.1% |
| Winchester 748 | <<locked>> | 94% | 53,476 psi | 89% | 2638 fps | 99.9% |
| Winchester StaBALL Match | <<locked>> | 96% | 52,649 psi | 87% | 2615 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% | 36,419 psi | 61% | 2270 fps | 99.9% |
| Accurate 2200 | <<locked>> | 80% | 47,137 psi | 78% | 2497 fps | 97% |
| Accurate 2230 | <<locked>> | 80% | 46,905 psi | 78% | 2500 fps | 97.3% |
| Accurate 2460 | <<locked>> | 80% | 39,189 psi | 65% | 2349 fps | 99.1% |
| Accurate 2495 | <<locked>> | 80% | 28,921 psi | 48% | 2175 fps | 99.3% |
| Accurate 2520 | <<locked>> | 80% | 34,432 psi | 57% | 2293 fps | 97.9% |
| Accurate 4064 | <<locked>> | 80% | 27,383 psi | 45% | 2152 fps | 96.7% |
| Accurate LT-30 | <<locked>> | 80% | 44,918 psi | 75% | 2349 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 45,295 psi | 75% | 2362 fps | 99.6% |
| ADI AR 2206H | <<locked>> | 84% | 37,869 psi | 63% | 2349 fps | 95.6% |
| ADI AR 2207 | <<locked>> | 80% | 48,675 psi | 81% | 2415 fps | 100% |
| ADI AR 2208 | <<locked>> | 92% | 41,133 psi | 68% | 2392 fps | 95.6% |
| ADI AR 2219 | <<locked>> | 80% | 43,787 psi | 73% | 2444 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 35,244 psi | 59% | 2270 fps | 96.2% |
| Alliant AR-Comp | <<locked>> | 80% | 33,605 psi | 56% | 2290 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 40,219 psi | 67% | 2441 fps | 97.1% |
| Alliant Power Pro 2000-MR | 42.3 gr | 90% | 41,655 psi | 69% | 2503 fps | 95.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 32,909 psi | 55% | 2274 fps | 95.1% |
| Alliant Reloder-10x | <<locked>> | 80% | 41,408 psi | 69% | 2362 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 38,145 psi | 63% | 2379 fps | 95% |
| Alliant Reloder-17 | <<locked>> | 94% | 37,173 psi | 62% | 2421 fps | 95.3% |
| Alliant Reloder-7 | <<locked>> | 80% | 49,850 psi | 83% | 2431 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 43,468 psi | 72% | 2346 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 41,858 psi | 70% | 2441 fps | 95.4% |
| Bofors RP3 | <<locked>> | 88% | 34,185 psi | 57% | 2316 fps | 95.7% |
| Hodgdon Benchmark | <<locked>> | 80% | 37,623 psi | 63% | 2277 fps | 97.5% |
| Hodgdon BL-C2 | <<locked>> | 80% | 32,750 psi | 54% | 2274 fps | 96.1% |
| Hodgdon CFE223 | 39.5 gr | 82% | 38,899 psi | 65% | 2438 fps | 95.1% |
| Hodgdon H322 | <<locked>> | 80% | 40,059 psi | 67% | 2379 fps | 99.8% |
| Hodgdon H335 | <<locked>> | 80% | 40,393 psi | 67% | 2392 fps | 99.4% |
| Hodgdon H380 | <<locked>> | 94% | 43,526 psi | 72% | 2467 fps | 95% |
| Hodgdon H4198 | <<locked>> | 80% | 49,458 psi | 82% | 2431 fps | 100% |
| Hodgdon H4895 | <<locked>> | 82% | 35,679 psi | 59% | 2313 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 33,852 psi | 56% | 2316 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,135 psi | 42% | 1365 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 34,650 psi | 58% | 2270 fps | 95% |
| IMR 3031 | <<locked>> | 80% | 31,966 psi | 53% | 2274 fps | 99.2% |
| IMR 4064 | <<locked>> | 88% | 38,189 psi | 63% | 2333 fps | 95.1% |
| IMR 4198 | <<locked>> | 80% | 42,670 psi | 71% | 2339 fps | 100% |
| IMR 4895 | <<locked>> | 86% | 36,564 psi | 61% | 2359 fps | 95.3% |
| IMR 8208 XBR | <<locked>> | 80% | 35,244 psi | 59% | 2270 fps | 96.2% |
| Lovex D073.4 | <<locked>> | 80% | 47,892 psi | 80% | 2497 fps | 99.7% |
| Lovex D073.5 | <<locked>> | 80% | 38,957 psi | 65% | 2349 fps | 98.2% |
| Lovex D073.6 | <<locked>> | 80% | 31,111 psi | 52% | 2234 fps | 96.8% |
| Lovex S060 | <<locked>> | 82% | 36,753 psi | 61% | 2257 fps | 95.2% |
| Lovex S062 | <<locked>> | 84% | 33,272 psi | 55% | 2247 fps | 95.7% |
| Norma 200 | <<locked>> | 80% | 47,007 psi | 78% | 2425 fps | 100% |
| Norma 201 | <<locked>> | 80% | 32,851 psi | 55% | 2221 fps | 95.5% |
| Norma 202 | <<locked>> | 80% | 32,706 psi | 54% | 2238 fps | 98% |
| Norma 203B | <<locked>> | 88% | 37,434 psi | 62% | 2369 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 90% | 39,523 psi | 66% | 2421 fps | 95.7% |
| Ramshot TAC | <<locked>> | 90% | 48,878 psi | 81% | 2510 fps | 95.5% |
| Ramshot Wild Boar | <<locked>> | 82% | 36,303 psi | 60% | 2329 fps | 95% |
| Ramshot X-Terminator | <<locked>> | 80% | 38,348 psi | 64% | 2313 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,164 psi | 42% | 1394 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 39,624 psi | 66% | 2356 fps | 98.6% |
| ReloadSwiss RS 52 | 40.1 gr | 88% | 39,262 psi | 65% | 2461 fps | 95.3% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 30,763 psi | 51% | 2274 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 36,419 psi | 61% | 2277 fps | 98.6% |
| Rottweil R 902 | <<locked>> | 82% | 33,127 psi | 55% | 2221 fps | 95.5% |
| Rottweil R 903 | <<locked>> | 90% | 34,098 psi | 57% | 2306 fps | 95.3% |
| Shooters World AR Plus | <<locked>> | 80% | 47,892 psi | 80% | 2497 fps | 99.7% |
| Shooters World Match Rifle | <<locked>> | 80% | 31,111 psi | 52% | 2234 fps | 96.8% |
| Shooters World Precision | <<locked>> | 84% | 33,272 psi | 55% | 2247 fps | 95.7% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 41,843 psi | 70% | 2365 fps | 97.5% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 49,617 psi | 82% | 2195 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 44,048 psi | 73% | 2448 fps | 99.7% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 38,319 psi | 64% | 2405 fps | 95.4% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 42,105 psi | 70% | 2375 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 90% | 46,079 psi | 77% | 2477 fps | 95.5% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 36,361 psi | 60% | 2320 fps | 95% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 34,606 psi | 57% | 2201 fps | 98.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 28,094 psi | 47% | 2077 fps | 97.4% |
| Somchem S321 | <<locked>> | 80% | 37,420 psi | 62% | 2339 fps | 97.2% |
| Somchem S335 | <<locked>> | 80% | 34,113 psi | 57% | 2208 fps | 98.9% |
| Somchem S341 | <<locked>> | 84% | 37,275 psi | 62% | 2329 fps | 95.2% |
| Somchem S355 | <<locked>> | 90% | 35,578 psi | 59% | 2320 fps | 95.5% |
| Somchem S365 | <<locked>> | 98% | 32,590 psi | 54% | 2326 fps | 95.3% |
| Vihtavuori N120 | <<locked>> | 80% | 48,675 psi | 81% | 2369 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 39,392 psi | 65% | 2283 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 34,505 psi | 57% | 2208 fps | 99.8% |
| Vihtavuori N135 | <<locked>> | 80% | 29,573 psi | 49% | 2178 fps | 99.3% |
| Vihtavuori N140 | <<locked>> | 80% | 30,647 psi | 51% | 2178 fps | 97.7% |
| Vihtavuori N150 | <<locked>> | 88% | 31,676 psi | 53% | 2218 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 80% | 34,998 psi | 58% | 2267 fps | 96.2% |
| Vihtavuori N540 | <<locked>> | 80% | 29,515 psi | 49% | 2165 fps | 96.7% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 37,652 psi | 63% | 2333 fps | 95.5% |
| Winchester 748 | <<locked>> | 80% | 33,707 psi | 56% | 2297 fps | 96.7% |
| Winchester StaBALL Match | <<locked>> | 84% | 35,331 psi | 59% | 2320 fps | 95.4% |
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 .311 | 174gr | Frontier PH HPFB. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,726 fps; across all powders the maximum-charge window runs from 1,529 fps to 2,726 fps. Accurate 4064 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 56–90 %, leaving at least 10 % headroom. The 174.0 gr projectile in 0.311" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. Accurate 4064, ADI AR 2208, Alliant Reloder- TS 15.5 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 .311 | 174gr | Frontier PH HPFB 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.