Load Specifications
Load data in caliber .308 Win. Ackley Improved with .308 | 150gr | Swift A-Frame bullet and 87 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% | 51,895 psi | 86% | 2749 fps | 100% |
| Accurate 2200 | <<locked>> | 84% | 52,852 psi | 88% | 2831 fps | 97.2% |
| Accurate 2230 | <<locked>> | 84% | 53,490 psi | 89% | 2841 fps | 97.7% |
| Accurate 2460 | <<locked>> | 90% | 54,273 psi | 90% | 2822 fps | 100% |
| Accurate 2495 | <<locked>> | 98% | 51,227 psi | 85% | 2799 fps | 100% |
| Accurate 2520 | <<locked>> | 92% | 51,503 psi | 86% | 2822 fps | 99.8% |
| Accurate 4064ᴾ | <<locked>> | 100% | 50,894 psi | 85% | 2831 fps | 100% |
| Accurate LT-30 | <<locked>> | 86% | 53,359 psi | 89% | 2710 fps | 100% |
| Accurate LT-32 | <<locked>> | 86% | 53,795 psi | 89% | 2726 fps | 99.8% |
| ADI AR 2206H | <<locked>> | 96% | 54,375 psi | 90% | 2867 fps | 98.3% |
| ADI AR 2207 | <<locked>> | 84% | 54,389 psi | 90% | 2736 fps | 100% |
| ADI AR 2208ᴾ | <<locked>> | 100% | 51,924 psi | 86% | 2805 fps | 97.2% |
| ADI AR 2219 | <<locked>> | 86% | 52,663 psi | 87% | 2818 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 94% | 53,969 psi | 90% | 2831 fps | 99.1% |
| Alliant AR-Comp | <<locked>> | 94% | 52,431 psi | 87% | 2828 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 88% | 51,430 psi | 85% | 2877 fps | 98.4% |
| Alliant Power Pro 2000-MR | <<locked>> | 98% | 53,867 psi | 89% | 2956 fps | 97.3% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 50,531 psi | 84% | 2828 fps | 98.5% |
| Alliant Reloder-10x | <<locked>> | 88% | 52,272 psi | 87% | 2769 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 98% | 51,619 psi | 86% | 2848 fps | 97.4% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 44,904 psi | 75% | 2802 fps | 96.7% |
| Alliant Reloder-7 | <<locked>> | 82% | 52,301 psi | 87% | 2710 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 86% | 52,185 psi | 87% | 2703 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 96% | 54,056 psi | 90% | 2877 fps | 97.2% |
| Bofors RP3ᴾ | <<locked>> | 100% | 50,328 psi | 84% | 2835 fps | 98.6% |
| Hodgdon Benchmark | <<locked>> | 92% | 53,243 psi | 88% | 2776 fps | 99.4% |
| Hodgdon BL-C2 | <<locked>> | 94% | 52,069 psi | 87% | 2858 fps | 99.3% |
| Hodgdon CFE223 | <<locked>> | 92% | 53,983 psi | 90% | 2943 fps | 97.8% |
| Hodgdon H322 | <<locked>> | 88% | 51,285 psi | 85% | 2799 fps | 100% |
| Hodgdon H335 | <<locked>> | 88% | 52,330 psi | 87% | 2822 fps | 100% |
| Hodgdon H380ᴾ | <<locked>> | 100% | 52,402 psi | 87% | 2841 fps | 96.1% |
| Hodgdon H4198 | <<locked>> | 82% | 52,025 psi | 86% | 2710 fps | 100% |
| Hodgdon H4895 | <<locked>> | 94% | 51,387 psi | 85% | 2828 fps | 98.3% |
| Hodgdon LEVERevolution | <<locked>> | 98% | 52,765 psi | 88% | 2900 fps | 98.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,779 psi | 56% | 1696 fps | 100% |
| Hodgdon VARGET | <<locked>> | 96% | 52,939 psi | 88% | 2831 fps | 98.5% |
| IMR 3031 | <<locked>> | 96% | 53,055 psi | 88% | 2877 fps | 100% |
| IMR 4064 | <<locked>> | 98% | 51,576 psi | 86% | 2792 fps | 97.4% |
| IMR 4198 | <<locked>> | 88% | 53,214 psi | 88% | 2736 fps | 100% |
| IMR 4895 | <<locked>> | 98% | 52,852 psi | 88% | 2881 fps | 98.2% |
| IMR 8208 XBR | <<locked>> | 94% | 53,969 psi | 90% | 2831 fps | 99.1% |
| Lovex D073.4 | <<locked>> | 84% | 53,998 psi | 90% | 2828 fps | 99.8% |
| Lovex D073.5 | <<locked>> | 90% | 54,172 psi | 90% | 2825 fps | 99.6% |
| Lovex D073.6 | <<locked>> | 96% | 52,591 psi | 87% | 2848 fps | 99.8% |
| Lovex S060 | <<locked>> | 94% | 51,982 psi | 86% | 2753 fps | 97.9% |
| Lovex S062ᴾ | <<locked>> | 100% | 53,577 psi | 89% | 2841 fps | 99.2% |
| Norma 200 | <<locked>> | 84% | 52,402 psi | 87% | 2746 fps | 100% |
| Norma 201 | <<locked>> | 96% | 53,142 psi | 88% | 2818 fps | 99.1% |
| Norma 202 | <<locked>> | 96% | 53,127 psi | 88% | 2831 fps | 100% |
| Norma 203Bᴾ | <<locked>> | 100% | 54,070 psi | 90% | 2887 fps | 98.3% |
| Ramshot Big Game | <<locked>> | 98% | 50,937 psi | 85% | 2851 fps | 97.5% |
| Ramshot Wild Boar | <<locked>> | 94% | 53,505 psi | 89% | 2861 fps | 98.1% |
| Ramshot X-Terminator | <<locked>> | 90% | 52,330 psi | 87% | 2782 fps | 97.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,866 psi | 56% | 1736 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 90% | 53,983 psi | 90% | 2828 fps | 99.8% |
| ReloadSwiss RS 52 | <<locked>> | 98% | 54,128 psi | 90% | 2956 fps | 97.8% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 47,993 psi | 80% | 2877 fps | 99.4% |
| Rottweil R 901 | <<locked>> | 94% | 54,201 psi | 90% | 2815 fps | 100% |
| Rottweil R 902 | <<locked>> | 98% | 53,069 psi | 88% | 2808 fps | 99% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 46,615 psi | 77% | 2766 fps | 97.6% |
| Shooters World AR Plus | <<locked>> | 84% | 53,998 psi | 90% | 2828 fps | 99.8% |
| Shooters World Match Rifle | <<locked>> | 96% | 52,591 psi | 87% | 2848 fps | 99.8% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 53,577 psi | 89% | 2841 fps | 99.2% |
| Shooters World Tactical Rifle | <<locked>> | 86% | 50,720 psi | 84% | 2740 fps | 98.4% |
| SNPE Vectan BA6 1/2 | <<locked>> | 82% | 51,430 psi | 85% | 2448 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 86% | 53,403 psi | 89% | 2831 fps | 100% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 49,168 psi | 82% | 2831 fps | 97.3% |
| SNPE Vectan SP 3 | <<locked>> | 88% | 53,258 psi | 88% | 2785 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 94% | 52,504 psi | 87% | 2805 fps | 95.9% |
| SNPE Vectan SP 9 | <<locked>> | 96% | 52,605 psi | 87% | 2835 fps | 98% |
| SNPE Vectan Tubal 3000 | <<locked>> | 94% | 52,591 psi | 87% | 2733 fps | 99.9% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 51,590 psi | 86% | 2723 fps | 100% |
| Somchem S321 | <<locked>> | 90% | 51,692 psi | 86% | 2818 fps | 99.1% |
| Somchem S335 | <<locked>> | 94% | 51,285 psi | 85% | 2733 fps | 100% |
| Somchem S341 | <<locked>> | 94% | 51,692 psi | 86% | 2802 fps | 97.7% |
| Somchem S355ᴾ | <<locked>> | 100% | 47,935 psi | 80% | 2772 fps | 97.7% |
| Vihtavuori N120 | <<locked>> | 84% | 54,317 psi | 90% | 2687 fps | 100% |
| Vihtavuori N130 | <<locked>> | 90% | 52,431 psi | 87% | 2717 fps | 100% |
| Vihtavuori N133 | <<locked>> | 94% | 52,199 psi | 87% | 2726 fps | 100% |
| Vihtavuori N135 | <<locked>> | 98% | 51,721 psi | 86% | 2795 fps | 100% |
| Vihtavuori N140 | <<locked>> | 98% | 53,490 psi | 89% | 2805 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 46,093 psi | 77% | 2710 fps | 98.5% |
| Vihtavuori N530 | <<locked>> | 92% | 51,169 psi | 85% | 2782 fps | 98.8% |
| Vihtavuori N540 | <<locked>> | 98% | 51,779 psi | 86% | 2802 fps | 99.9% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 42,554 psi | 71% | 2635 fps | 96% |
| Winchester 748 | <<locked>> | 94% | 53,156 psi | 88% | 2877 fps | 99.6% |
| Winchester StaBALL Match | <<locked>> | 96% | 52,228 psi | 87% | 2848 fps | 98.5% |
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% | 35,824 psi | 60% | 2474 fps | 99.6% |
| Accurate 2200 | <<locked>> | 80% | 46,325 psi | 77% | 2717 fps | 95.8% |
| Accurate 2230 | <<locked>> | 80% | 46,514 psi | 77% | 2726 fps | 96.3% |
| Accurate 2460 | <<locked>> | 80% | 38,682 psi | 64% | 2559 fps | 98.4% |
| Accurate 2495 | <<locked>> | 80% | 28,384 psi | 47% | 2362 fps | 98.5% |
| Accurate 2520 | <<locked>> | 80% | 33,895 psi | 56% | 2493 fps | 96.7% |
| Accurate 4064 | <<locked>> | 80% | 26,861 psi | 45% | 2333 fps | 95.2% |
| Accurate LT-30 | <<locked>> | 80% | 44,585 psi | 74% | 2572 fps | 99.9% |
| Accurate LT-32 | <<locked>> | 80% | 44,947 psi | 75% | 2585 fps | 99.1% |
| ADI AR 2206H | <<locked>> | 86% | 39,871 psi | 66% | 2608 fps | 95.1% |
| ADI AR 2207 | <<locked>> | 80% | 47,935 psi | 80% | 2648 fps | 100% |
| ADI AR 2208 | <<locked>> | 94% | 43,163 psi | 72% | 2651 fps | 95.1% |
| ADI AR 2219 | <<locked>> | 80% | 43,163 psi | 72% | 2664 fps | 99.7% |
| ADI Benchmark 8208 | <<locked>> | 82% | 37,086 psi | 62% | 2523 fps | 95.7% |
| Alliant AR-Comp | <<locked>> | 80% | 32,924 psi | 55% | 2493 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 39,595 psi | 66% | 2654 fps | 95.8% |
| Alliant Power Pro 2000-MR | 49.3 gr | 94% | 47,050 psi | 78% | 2835 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 36,651 psi | 61% | 2566 fps | 95.3% |
| Alliant Reloder-10x | <<locked>> | 80% | 40,930 psi | 68% | 2585 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 42,554 psi | 71% | 2684 fps | 95.3% |
| Alliant Reloder-17 | <<locked>> | 98% | 41,887 psi | 70% | 2736 fps | 95.7% |
| Alliant Reloder-7 | <<locked>> | 80% | 49,008 psi | 81% | 2661 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 43,033 psi | 71% | 2562 fps | 99.9% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 44,266 psi | 74% | 2710 fps | 95% |
| Bofors RP3 | <<locked>> | 90% | 35,926 psi | 60% | 2566 fps | 95.1% |
| Hodgdon Benchmark | <<locked>> | 80% | 37,101 psi | 62% | 2480 fps | 96.4% |
| Hodgdon BL-C2 | <<locked>> | 82% | 34,577 psi | 57% | 2526 fps | 95.6% |
| Hodgdon CFE223 | 46.2 gr | 86% | 43,947 psi | 73% | 2766 fps | 95.6% |
| Hodgdon H322 | <<locked>> | 80% | 39,552 psi | 66% | 2595 fps | 99.3% |
| Hodgdon H335 | <<locked>> | 80% | 39,929 psi | 66% | 2608 fps | 98.8% |
| Hodgdon H380 | <<locked>> | 98% | 49,081 psi | 82% | 2785 fps | 95.4% |
| Hodgdon H4198 | <<locked>> | 80% | 49,110 psi | 82% | 2664 fps | 99.9% |
| Hodgdon H4895 | <<locked>> | 84% | 37,579 psi | 62% | 2566 fps | 95.1% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 38,189 psi | 63% | 2628 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,048 psi | 42% | 1516 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 38,667 psi | 64% | 2572 fps | 95.3% |
| IMR 3031 | <<locked>> | 80% | 31,560 psi | 52% | 2474 fps | 98.4% |
| IMR 4064 | <<locked>> | 92% | 42,743 psi | 71% | 2638 fps | 95.3% |
| IMR 4198 | <<locked>> | 80% | 41,858 psi | 70% | 2559 fps | 100% |
| IMR 4895 | <<locked>> | 90% | 40,828 psi | 68% | 2664 fps | 95.5% |
| IMR 8208 XBR | <<locked>> | 82% | 37,086 psi | 62% | 2523 fps | 95.7% |
| Lovex D073.4 | <<locked>> | 80% | 46,992 psi | 78% | 2720 fps | 99.2% |
| Lovex D073.5 | <<locked>> | 80% | 38,421 psi | 64% | 2556 fps | 97.2% |
| Lovex D073.6 | <<locked>> | 80% | 30,560 psi | 51% | 2425 fps | 95.5% |
| Lovex S060 | <<locked>> | 86% | 41,002 psi | 68% | 2556 fps | 95.4% |
| Lovex S062 | <<locked>> | 86% | 34,809 psi | 58% | 2490 fps | 95.1% |
| Norma 200 | <<locked>> | 80% | 46,369 psi | 77% | 2654 fps | 100% |
| Norma 201 | <<locked>> | 84% | 36,622 psi | 61% | 2513 fps | 95.7% |
| Norma 202 | <<locked>> | 80% | 32,111 psi | 53% | 2434 fps | 96.8% |
| Norma 203B | <<locked>> | 92% | 41,742 psi | 69% | 2674 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 92% | 41,887 psi | 70% | 2687 fps | 95.3% |
| Ramshot Wild Boar | <<locked>> | 86% | 41,017 psi | 68% | 2641 fps | 95.4% |
| Ramshot X-Terminator | <<locked>> | 82% | 40,408 psi | 67% | 2569 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,005 psi | 42% | 1549 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 39,175 psi | 65% | 2569 fps | 97.8% |
| ReloadSwiss RS 52 | 46.8 gr | 92% | 44,353 psi | 74% | 2785 fps | 95.7% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 34,592 psi | 57% | 2579 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 80% | 35,694 psi | 59% | 2477 fps | 97.6% |
| Rottweil R 902 | <<locked>> | 84% | 34,737 psi | 58% | 2464 fps | 95% |
| Rottweil R 903 | <<locked>> | 94% | 38,319 psi | 64% | 2608 fps | 95.6% |
| Shooters World AR Plus | <<locked>> | 80% | 46,992 psi | 78% | 2720 fps | 99.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 30,560 psi | 51% | 2425 fps | 95.5% |
| Shooters World Precision | <<locked>> | 86% | 34,809 psi | 58% | 2490 fps | 95.1% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 41,481 psi | 69% | 2579 fps | 96.6% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 48,849 psi | 81% | 2415 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 43,627 psi | 72% | 2671 fps | 99.3% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 43,062 psi | 72% | 2717 fps | 95.8% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 41,568 psi | 69% | 2598 fps | 99.9% |
| SNPE Vectan SP 7 | <<locked>> | 92% | 48,878 psi | 81% | 2746 fps | 95.1% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 40,915 psi | 68% | 2628 fps | 95.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 34,214 psi | 57% | 2402 fps | 97.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 27,731 psi | 46% | 2260 fps | 96.3% |
| Somchem S321 | <<locked>> | 80% | 36,883 psi | 61% | 2543 fps | 96% |
| Somchem S335 | <<locked>> | 80% | 33,634 psi | 56% | 2405 fps | 98% |
| Somchem S341 | <<locked>> | 88% | 42,061 psi | 70% | 2638 fps | 95.5% |
| Somchem S355 | <<locked>> | 94% | 39,711 psi | 66% | 2618 fps | 95.7% |
| Vihtavuori N120 | <<locked>> | 80% | 47,950 psi | 80% | 2598 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 38,914 psi | 65% | 2497 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 34,113 psi | 57% | 2411 fps | 99.3% |
| Vihtavuori N135 | <<locked>> | 80% | 29,095 psi | 48% | 2372 fps | 98.5% |
| Vihtavuori N140 | <<locked>> | 80% | 30,298 psi | 50% | 2369 fps | 96.5% |
| Vihtavuori N150 | <<locked>> | 90% | 33,518 psi | 56% | 2461 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 82% | 36,811 psi | 61% | 2516 fps | 95.7% |
| Vihtavuori N540 | <<locked>> | 80% | 29,124 psi | 48% | 2352 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 39,769 psi | 66% | 2579 fps | 95.1% |
| Winchester 748 | <<locked>> | 80% | 33,098 psi | 55% | 2490 fps | 95.3% |
| Winchester StaBALL Match | <<locked>> | 86% | 37,376 psi | 62% | 2572 fps | 95% |
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 103 powders for .308 Win. Ackley Improved loaded with the .308 | 150gr | Swift A-Frame. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,956 fps; across all powders the maximum-charge window runs from 1,696 fps to 2,956 fps. Accurate 4064 gives the best case fill at 100 %, and 103 of the 103 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 150.0 gr projectile in 0.308" calls for a 1:16.0 twist; slower twists will usually not stabilise this weight. Accurate 4064, Accurate 4350, ADI AR 2208 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 .308 | 150gr | Swift A-Frame they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2700, Accurate 4350, Alliant Reloder-16 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.