Load Specifications
Load data in caliber .308 Win. Ackley Improved with .311 | 150gr | Impala LW CFN bullet and 84 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 52, Alliant Power Pro 1200-R and IMR 3031.
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% | 53,229 psi | 88% | 2726 fps | 100% |
| Accurate 2200 | <<locked>> | 84% | 53,403 psi | 89% | 2789 fps | 96.8% |
| Accurate 2230 | <<locked>> | 84% | 54,027 psi | 90% | 2802 fps | 97.3% |
| Accurate 2460 | <<locked>> | 88% | 51,764 psi | 86% | 2736 fps | 99.7% |
| Accurate 2495 | <<locked>> | 98% | 53,055 psi | 88% | 2779 fps | 100% |
| Accurate 2520 | <<locked>> | 92% | 52,431 psi | 87% | 2789 fps | 99.6% |
| Accurate 4064ᴾ | <<locked>> | 100% | 52,591 psi | 87% | 2808 fps | 100% |
| Accurate LT-30 | <<locked>> | 86% | 53,882 psi | 90% | 2674 fps | 100% |
| Accurate LT-32 | <<locked>> | 86% | 54,244 psi | 90% | 2690 fps | 99.7% |
| ADI AR 2206H | <<locked>> | 94% | 51,750 psi | 86% | 2782 fps | 97.5% |
| ADI AR 2207 | <<locked>> | 82% | 52,112 psi | 87% | 2664 fps | 100% |
| ADI AR 2208ᴾ | <<locked>> | 100% | 52,243 psi | 87% | 2762 fps | 96.7% |
| ADI AR 2219 | <<locked>> | 86% | 53,011 psi | 88% | 2782 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 92% | 51,097 psi | 85% | 2743 fps | 98.4% |
| Alliant AR-Comp | <<locked>> | 94% | 52,533 psi | 87% | 2792 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 88% | 52,214 psi | 87% | 2844 fps | 98.2% |
| Alliant Power Pro 2000-MR | <<locked>> | 98% | 53,925 psi | 90% | 2907 fps | 96.6% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 50,734 psi | 84% | 2785 fps | 98.2% |
| Alliant Reloder-10x | <<locked>> | 88% | 53,011 psi | 88% | 2733 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 98% | 51,895 psi | 86% | 2802 fps | 96.9% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 45,266 psi | 75% | 2756 fps | 96.1% |
| Alliant Reloder-7 | <<locked>> | 82% | 53,185 psi | 88% | 2677 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 86% | 52,446 psi | 87% | 2667 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 96% | 54,056 psi | 90% | 2831 fps | 96.7% |
| Bofors RP3ᴾ | <<locked>> | 100% | 51,169 psi | 85% | 2802 fps | 98.3% |
| Hodgdon Benchmark | <<locked>> | 92% | 53,896 psi | 90% | 2740 fps | 99.2% |
| Hodgdon BL-C2 | <<locked>> | 94% | 52,533 psi | 87% | 2818 fps | 99.1% |
| Hodgdon CFE223 | <<locked>> | 92% | 54,027 psi | 90% | 2897 fps | 97.3% |
| Hodgdon H322 | <<locked>> | 88% | 51,619 psi | 86% | 2762 fps | 100% |
| Hodgdon H335 | <<locked>> | 88% | 52,910 psi | 88% | 2785 fps | 99.9% |
| Hodgdon H4198 | <<locked>> | 82% | 52,562 psi | 87% | 2674 fps | 100% |
| Hodgdon H4895 | <<locked>> | 94% | 52,156 psi | 87% | 2795 fps | 98.1% |
| Hodgdon LEVERevolution | <<locked>> | 98% | 53,069 psi | 88% | 2861 fps | 98.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,214 psi | 57% | 1670 fps | 100% |
| Hodgdon VARGET | <<locked>> | 96% | 53,432 psi | 89% | 2795 fps | 98.1% |
| IMR 3031 | <<locked>> | 96% | 53,330 psi | 89% | 2841 fps | 100% |
| IMR 4064 | <<locked>> | 98% | 51,880 psi | 86% | 2749 fps | 96.9% |
| IMR 4198 | <<locked>> | 88% | 53,345 psi | 89% | 2697 fps | 100% |
| IMR 4895 | <<locked>> | 98% | 53,011 psi | 88% | 2838 fps | 97.8% |
| IMR 8208 XBR | <<locked>> | 92% | 51,097 psi | 85% | 2743 fps | 98.4% |
| Lovex D073.4 | <<locked>> | 82% | 51,532 psi | 86% | 2743 fps | 99.4% |
| Lovex D073.5 | <<locked>> | 88% | 51,822 psi | 86% | 2743 fps | 99.1% |
| Lovex D073.6 | <<locked>> | 96% | 53,505 psi | 89% | 2818 fps | 99.7% |
| Lovex S060 | <<locked>> | 94% | 52,678 psi | 88% | 2717 fps | 97.5% |
| Lovex S062ᴾ | <<locked>> | 100% | 54,331 psi | 90% | 2805 fps | 98.9% |
| Norma 200 | <<locked>> | 84% | 53,780 psi | 89% | 2717 fps | 100% |
| Norma 201 | <<locked>> | 96% | 53,954 psi | 90% | 2782 fps | 98.8% |
| Norma 202 | <<locked>> | 96% | 53,838 psi | 89% | 2799 fps | 99.9% |
| Norma 203Bᴾ | <<locked>> | 100% | 54,418 psi | 90% | 2848 fps | 97.9% |
| Ramshot Big Game | <<locked>> | 98% | 51,227 psi | 85% | 2808 fps | 97.1% |
| Ramshot Wild Boar | <<locked>> | 94% | 53,737 psi | 89% | 2818 fps | 97.7% |
| Ramshot X-Terminator | <<locked>> | 90% | 52,808 psi | 88% | 2743 fps | 97.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,461 psi | 57% | 1709 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 90% | 54,331 psi | 90% | 2789 fps | 99.6% |
| ReloadSwiss RS 52 | <<locked>> | 98% | 54,346 psi | 90% | 2913 fps | 97.4% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 48,211 psi | 80% | 2831 fps | 99.1% |
| Rottweil R 901 | <<locked>> | 92% | 52,837 psi | 88% | 2743 fps | 99.8% |
| Rottweil R 902 | <<locked>> | 98% | 54,244 psi | 90% | 2779 fps | 98.8% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 47,747 psi | 79% | 2736 fps | 97.4% |
| Shooters World AR Plus | <<locked>> | 82% | 51,532 psi | 86% | 2743 fps | 99.4% |
| Shooters World Match Rifle | <<locked>> | 96% | 53,505 psi | 89% | 2818 fps | 99.7% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 54,331 psi | 90% | 2805 fps | 98.9% |
| Shooters World Tactical Rifle | <<locked>> | 86% | 51,590 psi | 86% | 2707 fps | 98.1% |
| SNPE Vectan BA6 1/2 | <<locked>> | 82% | 52,344 psi | 87% | 2418 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 86% | 53,766 psi | 89% | 2792 fps | 99.9% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 49,443 psi | 82% | 2789 fps | 96.8% |
| SNPE Vectan SP 3 | <<locked>> | 88% | 53,505 psi | 89% | 2746 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 96% | 53,156 psi | 88% | 2799 fps | 97.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 94% | 53,330 psi | 89% | 2700 fps | 99.8% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 51,822 psi | 86% | 2687 fps | 100% |
| Somchem S321 | <<locked>> | 90% | 52,330 psi | 87% | 2782 fps | 98.8% |
| Somchem S335 | <<locked>> | 94% | 52,185 psi | 87% | 2700 fps | 100% |
| Somchem S341 | <<locked>> | 94% | 51,938 psi | 86% | 2762 fps | 97.3% |
| Somchem S355ᴾ | <<locked>> | 100% | 48,849 psi | 81% | 2743 fps | 97.4% |
| Vihtavuori N120 | <<locked>> | 82% | 51,924 psi | 86% | 2615 fps | 100% |
| Vihtavuori N130 | <<locked>> | 90% | 53,127 psi | 88% | 2684 fps | 100% |
| Vihtavuori N133 | <<locked>> | 94% | 52,663 psi | 87% | 2694 fps | 100% |
| Vihtavuori N135 | <<locked>> | 98% | 52,025 psi | 86% | 2759 fps | 100% |
| Vihtavuori N140 | <<locked>> | 98% | 53,824 psi | 89% | 2769 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 46,934 psi | 78% | 2680 fps | 98.2% |
| Vihtavuori N530 | <<locked>> | 92% | 51,721 psi | 86% | 2743 fps | 98.5% |
| Vihtavuori N540 | <<locked>> | 98% | 52,243 psi | 87% | 2766 fps | 99.8% |
| Winchester 748 | <<locked>> | 94% | 53,142 psi | 88% | 2835 fps | 99.3% |
| Winchester StaBALL Match | <<locked>> | 96% | 52,199 psi | 87% | 2802 fps | 98.1% |
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% | 37,521 psi | 62% | 2461 fps | 99.6% |
| Accurate 2200 | <<locked>> | 80% | 47,079 psi | 78% | 2680 fps | 95.4% |
| Accurate 2230 | <<locked>> | 80% | 47,369 psi | 79% | 2690 fps | 96% |
| Accurate 2460 | <<locked>> | 80% | 40,379 psi | 67% | 2543 fps | 98.3% |
| Accurate 2495 | <<locked>> | 80% | 30,980 psi | 51% | 2372 fps | 98.8% |
| Accurate 2520 | <<locked>> | 80% | 35,679 psi | 59% | 2484 fps | 96.8% |
| Accurate 4064 | <<locked>> | 80% | 29,283 psi | 49% | 2343 fps | 95.8% |
| Accurate LT-30 | <<locked>> | 80% | 45,237 psi | 75% | 2539 fps | 99.8% |
| Accurate LT-32 | <<locked>> | 80% | 45,629 psi | 76% | 2552 fps | 98.9% |
| ADI AR 2206H | <<locked>> | 88% | 43,424 psi | 72% | 2631 fps | 95.6% |
| ADI AR 2207 | <<locked>> | 80% | 49,095 psi | 82% | 2621 fps | 100% |
| ADI AR 2208 | <<locked>> | 96% | 46,601 psi | 77% | 2667 fps | 95.5% |
| ADI AR 2219 | <<locked>> | 80% | 44,034 psi | 73% | 2638 fps | 99.6% |
| ADI Benchmark 8208 | <<locked>> | 82% | 38,290 psi | 64% | 2503 fps | 95.5% |
| Alliant AR-Comp | <<locked>> | 80% | 34,258 psi | 57% | 2477 fps | 100% |
| Alliant Power Pro 1200-R | 37.3 gr | 80% | 40,625 psi | 67% | 2628 fps | 95.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 96% | 50,589 psi | 84% | 2848 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 37,753 psi | 63% | 2546 fps | 95.1% |
| Alliant Reloder-10x | <<locked>> | 80% | 42,206 psi | 70% | 2562 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 46,267 psi | 77% | 2707 fps | 95.7% |
| Alliant Reloder-17 | <<locked>> | 98% | 42,743 psi | 71% | 2703 fps | 95.3% |
| Alliant Reloder-7 | <<locked>> | 80% | 50,183 psi | 83% | 2635 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 43,787 psi | 73% | 2533 fps | 99.8% |
| Baschieri & Pellagri 107 | <<locked>> | 92% | 47,761 psi | 79% | 2726 fps | 95.3% |
| Bofors RP3 | <<locked>> | 90% | 37,492 psi | 62% | 2552 fps | 95.1% |
| Hodgdon Benchmark | <<locked>> | 80% | 38,363 psi | 64% | 2461 fps | 96.2% |
| Hodgdon BL-C2 | <<locked>> | 82% | 35,998 psi | 60% | 2510 fps | 95.6% |
| Hodgdon CFE223 | <<locked>> | 86% | 44,701 psi | 74% | 2730 fps | 95.1% |
| Hodgdon H322 | <<locked>> | 80% | 40,364 psi | 67% | 2566 fps | 99.2% |
| Hodgdon H335 | <<locked>> | 80% | 40,959 psi | 68% | 2582 fps | 98.6% |
| Hodgdon H4198 | <<locked>> | 80% | 49,617 psi | 82% | 2628 fps | 99.9% |
| Hodgdon H4895 | <<locked>> | 86% | 40,988 psi | 68% | 2592 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 39,102 psi | 65% | 2598 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,657 psi | 43% | 1493 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 39,566 psi | 66% | 2546 fps | 95% |
| IMR 3031 | 36.1 gr | 80% | 32,938 psi | 55% | 2461 fps | 98.4% |
| IMR 4064 | <<locked>> | 92% | 43,613 psi | 72% | 2608 fps | 95% |
| IMR 4198 | <<locked>> | 80% | 42,743 psi | 71% | 2533 fps | 100% |
| IMR 4895 | <<locked>> | 90% | 41,887 psi | 70% | 2641 fps | 95.3% |
| IMR 8208 XBR | <<locked>> | 82% | 38,290 psi | 64% | 2503 fps | 95.5% |
| Lovex D073.4 | <<locked>> | 80% | 48,254 psi | 80% | 2690 fps | 99.1% |
| Lovex D073.5 | <<locked>> | 80% | 40,161 psi | 67% | 2539 fps | 97.1% |
| Lovex D073.6 | <<locked>> | 80% | 32,343 psi | 54% | 2418 fps | 95.6% |
| Lovex S060 | <<locked>> | 86% | 41,872 psi | 70% | 2526 fps | 95.1% |
| Lovex S062 | <<locked>> | 86% | 36,245 psi | 60% | 2474 fps | 95% |
| Norma 200 | <<locked>> | 80% | 47,964 psi | 80% | 2631 fps | 100% |
| Norma 201 | <<locked>> | 84% | 38,174 psi | 63% | 2497 fps | 95.6% |
| Norma 202 | <<locked>> | 80% | 33,446 psi | 56% | 2418 fps | 96.8% |
| Norma 203B | <<locked>> | 92% | 42,670 psi | 71% | 2644 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 94% | 45,237 psi | 75% | 2703 fps | 95.6% |
| Ramshot Wild Boar | <<locked>> | 86% | 41,771 psi | 69% | 2608 fps | 95% |
| Ramshot X-Terminator | <<locked>> | 84% | 43,990 psi | 73% | 2592 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,730 psi | 43% | 1529 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 40,248 psi | 67% | 2543 fps | 97.6% |
| ReloadSwiss RS 52 | 44.3 gr | 92% | 44,933 psi | 75% | 2749 fps | 95.2% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 35,824 psi | 60% | 2556 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 80% | 38,058 psi | 63% | 2474 fps | 97.8% |
| Rottweil R 902 | <<locked>> | 84% | 36,477 psi | 61% | 2451 fps | 95% |
| Rottweil R 903 | <<locked>> | 94% | 39,668 psi | 66% | 2589 fps | 95.4% |
| Shooters World AR Plus | <<locked>> | 80% | 48,254 psi | 80% | 2690 fps | 99.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 32,343 psi | 54% | 2418 fps | 95.6% |
| Shooters World Precision | <<locked>> | 86% | 36,245 psi | 60% | 2474 fps | 95% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 42,496 psi | 71% | 2549 fps | 96.3% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 49,676 psi | 83% | 2385 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 44,512 psi | 74% | 2641 fps | 99.1% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 43,918 psi | 73% | 2687 fps | 95.4% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 42,351 psi | 70% | 2566 fps | 99.8% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 41,597 psi | 69% | 2595 fps | 95% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 35,563 psi | 59% | 2382 fps | 97.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 29,109 psi | 48% | 2251 fps | 96.3% |
| Somchem S321 | <<locked>> | 80% | 38,232 psi | 64% | 2523 fps | 95.9% |
| Somchem S335 | <<locked>> | 80% | 35,070 psi | 58% | 2388 fps | 98% |
| Somchem S341 | <<locked>> | 88% | 42,989 psi | 71% | 2608 fps | 95.2% |
| Somchem S355 | <<locked>> | 94% | 40,857 psi | 68% | 2595 fps | 95.4% |
| Vihtavuori N120 | <<locked>> | 80% | 48,965 psi | 81% | 2572 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 40,103 psi | 67% | 2474 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 35,201 psi | 58% | 2392 fps | 99.3% |
| Vihtavuori N135 | <<locked>> | 80% | 30,618 psi | 51% | 2362 fps | 98.6% |
| Vihtavuori N140 | <<locked>> | 80% | 31,589 psi | 52% | 2356 fps | 96.5% |
| Vihtavuori N150 | <<locked>> | 90% | 34,563 psi | 57% | 2438 fps | 95% |
| Vihtavuori N530 | <<locked>> | 82% | 38,087 psi | 63% | 2493 fps | 95.6% |
| Vihtavuori N540 | <<locked>> | 80% | 30,429 psi | 51% | 2339 fps | 95.4% |
| Winchester 748 | <<locked>> | 80% | 34,447 psi | 57% | 2474 fps | 95.3% |
| Winchester StaBALL Match | <<locked>> | 88% | 40,698 psi | 68% | 2598 fps | 95.5% |
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 84 powders for .308 Win. Ackley Improved loaded with the .311 | 150gr | Impala LW CFN. ReloadSwiss RS 52 delivers the highest muzzle velocity at 2,913 fps; across all powders the maximum-charge window runs from 1,670 fps to 2,913 fps. Accurate 4064 gives the best case fill at 100 %, and 84 of the 84 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 150.0 gr projectile in 0.311" calls for a 1:13.5 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. ReloadSwiss RS 52, Alliant Power Pro 1200-R, IMR 3031 rank at the top here: for .308 Win. Ackley Improved with the .311 | 150gr | Impala LW CFN 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.