Load Specifications
Load data in caliber .308 Win. Ackley Improved with .308 | 139gr | Prvi Partizan FMJ bullet and 80 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 1200-R, Winchester 748 and Ramshot Wild Boar.
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.
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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 1680 | <<locked>> | 82% | 52,286 psi | 87% | 2776 fps | 100% |
| Accurate 2015 | <<locked>> | 94% | 51,068 psi | 85% | 2838 fps | 100% |
| Accurate 2200 | <<locked>> | 86% | 52,663 psi | 87% | 2917 fps | 96.1% |
| Accurate 2230 | <<locked>> | 86% | 53,084 psi | 88% | 2923 fps | 96.6% |
| Accurate 2460 | <<locked>> | 92% | 53,316 psi | 89% | 2900 fps | 99.7% |
| Accurate 2495ᴾ | <<locked>> | 100% | 49,951 psi | 83% | 2881 fps | 100% |
| Accurate 2520 | <<locked>> | 96% | 53,940 psi | 90% | 2953 fps | 99.6% |
| Accurate 4064ᴾ | <<locked>> | 100% | 46,296 psi | 77% | 2854 fps | 99.4% |
| Accurate LT-30 | <<locked>> | 88% | 53,156 psi | 88% | 2799 fps | 100% |
| Accurate LT-32 | <<locked>> | 88% | 53,635 psi | 89% | 2815 fps | 99.5% |
| ADI AR 2206H | <<locked>> | 98% | 53,679 psi | 89% | 2946 fps | 97.3% |
| ADI AR 2207 | <<locked>> | 86% | 53,780 psi | 89% | 2831 fps | 100% |
| ADI AR 2219 | <<locked>> | 88% | 52,257 psi | 87% | 2910 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 96% | 53,330 psi | 89% | 2910 fps | 98.3% |
| Alliant AR-Comp | <<locked>> | 96% | 51,184 psi | 85% | 2917 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 92% | 53,911 psi | 90% | 3015 fps | 98% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 45,963 psi | 76% | 2838 fps | 96.8% |
| Alliant Reloder-10x | <<locked>> | 90% | 51,590 psi | 86% | 2858 fps | 100% |
| Alliant Reloder-15ᴾ | <<locked>> | 100% | 50,401 psi | 84% | 2913 fps | 96.1% |
| Alliant Reloder-7 | <<locked>> | 84% | 51,808 psi | 86% | 2802 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 88% | 52,098 psi | 87% | 2795 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 98% | 53,374 psi | 89% | 2949 fps | 96% |
| Bofors RP3ᴾ | <<locked>> | 100% | 45,934 psi | 76% | 2851 fps | 96.8% |
| Hodgdon Benchmark | <<locked>> | 94% | 52,837 psi | 88% | 2858 fps | 98.7% |
| Hodgdon BL-C2 | <<locked>> | 96% | 51,111 psi | 85% | 2933 fps | 98.6% |
| Hodgdon CFE223 | <<locked>> | 94% | 53,113 psi | 88% | 3015 fps | 96.6% |
| Hodgdon H322 | <<locked>> | 92% | 54,041 psi | 90% | 2936 fps | 100% |
| Hodgdon H335 | <<locked>> | 90% | 51,909 psi | 86% | 2910 fps | 99.7% |
| Hodgdon H4198 | <<locked>> | 84% | 52,141 psi | 87% | 2802 fps | 99.9% |
| Hodgdon H4895 | <<locked>> | 98% | 53,998 psi | 90% | 2959 fps | 97.9% |
| Hodgdon LEVERevolutionᴾ | <<locked>> | 100% | 51,953 psi | 86% | 2976 fps | 98% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,388 psi | 55% | 1752 fps | 100% |
| Hodgdon VARGET | <<locked>> | 98% | 52,344 psi | 87% | 2910 fps | 97.5% |
| IMR 3031 | <<locked>> | 98% | 51,895 psi | 86% | 2966 fps | 100% |
| IMR 4064ᴾ | <<locked>> | 100% | 50,647 psi | 84% | 2861 fps | 96.1% |
| IMR 4198 | <<locked>> | 90% | 52,736 psi | 88% | 2831 fps | 100% |
| IMR 4895ᴾ | <<locked>> | 100% | 51,590 psi | 86% | 2949 fps | 97.1% |
| IMR 8208 XBR | <<locked>> | 96% | 53,330 psi | 89% | 2910 fps | 98.3% |
| Lovex D073.4 | <<locked>> | 86% | 53,519 psi | 89% | 2917 fps | 99.4% |
| Lovex D073.5 | <<locked>> | 92% | 53,330 psi | 89% | 2904 fps | 99% |
| Lovex D073.6 | <<locked>> | 98% | 51,430 psi | 85% | 2923 fps | 99.3% |
| Lovex S053 | <<locked>> | 82% | 53,882 psi | 90% | 2736 fps | 100% |
| Lovex S060 | <<locked>> | 96% | 51,590 psi | 86% | 2831 fps | 96.8% |
| Lovex S062ᴾ | <<locked>> | 100% | 49,429 psi | 82% | 2864 fps | 97.8% |
| Norma 200 | <<locked>> | 86% | 51,634 psi | 86% | 2835 fps | 100% |
| Norma 201 | <<locked>> | 98% | 52,127 psi | 87% | 2894 fps | 98.2% |
| Norma 202 | <<locked>> | 98% | 52,286 psi | 87% | 2913 fps | 99.7% |
| Norma 203Bᴾ | <<locked>> | 100% | 49,385 psi | 82% | 2900 fps | 96.5% |
| Ramshot Big Gameᴾ | <<locked>> | 100% | 50,270 psi | 84% | 2923 fps | 96.3% |
| Ramshot Wild Boar | <<locked>> | 96% | 52,721 psi | 88% | 2936 fps | 97% |
| Ramshot X-Terminator | <<locked>> | 92% | 52,156 psi | 87% | 2864 fps | 96.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,402 psi | 55% | 1791 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 92% | 53,374 psi | 89% | 2910 fps | 99.3% |
| ReloadSwiss RS 52ᴾ | <<locked>> | 100% | 53,142 psi | 88% | 3028 fps | 96.6% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 44,222 psi | 73% | 2877 fps | 97.8% |
| Rottweil R 901 | <<locked>> | 96% | 53,417 psi | 89% | 2900 fps | 99.7% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 52,373 psi | 87% | 2887 fps | 98.2% |
| Shooters World AR Plus | <<locked>> | 86% | 53,519 psi | 89% | 2917 fps | 99.4% |
| Shooters World Match Rifle | <<locked>> | 98% | 51,430 psi | 85% | 2923 fps | 99.3% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 49,429 psi | 82% | 2864 fps | 97.8% |
| Shooters World Tactical Rifle | <<locked>> | 90% | 54,012 psi | 90% | 2877 fps | 98.1% |
| SNPE Vectan BA6 1/2 | <<locked>> | 84% | 51,779 psi | 86% | 2546 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 88% | 52,634 psi | 87% | 2913 fps | 99.7% |
| SNPE Vectan SP 3 | <<locked>> | 90% | 52,547 psi | 87% | 2874 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 98% | 51,953 psi | 86% | 2910 fps | 96.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 96% | 52,228 psi | 87% | 2818 fps | 99.6% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 47,718 psi | 79% | 2756 fps | 99.7% |
| Somchem S321 | <<locked>> | 92% | 50,937 psi | 85% | 2897 fps | 98.3% |
| Somchem S335 | <<locked>> | 98% | 53,664 psi | 89% | 2858 fps | 100% |
| Somchem S341 | <<locked>> | 96% | 50,850 psi | 84% | 2877 fps | 96.5% |
| Vihtavuori N120 | <<locked>> | 86% | 53,708 psi | 89% | 2782 fps | 100% |
| Vihtavuori N130 | <<locked>> | 92% | 51,909 psi | 86% | 2805 fps | 100% |
| Vihtavuori N133 | <<locked>> | 96% | 51,619 psi | 86% | 2815 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 50,343 psi | 84% | 2877 fps | 100% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 52,721 psi | 88% | 2890 fps | 99.8% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 42,293 psi | 70% | 2726 fps | 96.8% |
| Vihtavuori N530 | <<locked>> | 96% | 54,056 psi | 90% | 2913 fps | 98.5% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 51,068 psi | 85% | 2884 fps | 99.5% |
| Winchester 748 | <<locked>> | 96% | 52,199 psi | 87% | 2956 fps | 98.9% |
| Winchester StaBALL Match | <<locked>> | 98% | 51,053 psi | 85% | 2917 fps | 97.4% |
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 1680 | <<locked>> | 80% | 48,994 psi | 81% | 2726 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 32,967 psi | 55% | 2497 fps | 98.6% |
| Accurate 2200 | <<locked>> | 84% | 49,269 psi | 82% | 2858 fps | 95.4% |
| Accurate 2230 | <<locked>> | 82% | 46,006 psi | 76% | 2802 fps | 95% |
| Accurate 2460 | <<locked>> | 80% | 35,578 psi | 59% | 2575 fps | 96.6% |
| Accurate 2495 | <<locked>> | 80% | 25,599 psi | 43% | 2369 fps | 96.5% |
| Accurate 2520 | <<locked>> | 82% | 33,315 psi | 55% | 2562 fps | 95.4% |
| Accurate 4064 | <<locked>> | 86% | 29,370 psi | 49% | 2487 fps | 95.2% |
| Accurate LT-30 | <<locked>> | 80% | 41,800 psi | 69% | 2605 fps | 99.2% |
| Accurate LT-32 | <<locked>> | 80% | 42,163 psi | 70% | 2618 fps | 97.8% |
| ADI AR 2206H | <<locked>> | 92% | 44,237 psi | 73% | 2782 fps | 95.2% |
| ADI AR 2207 | <<locked>> | 80% | 44,788 psi | 74% | 2700 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 39,842 psi | 66% | 2690 fps | 98.8% |
| ADI Benchmark 8208 | <<locked>> | 86% | 38,914 psi | 65% | 2644 fps | 95.1% |
| Alliant AR-Comp | <<locked>> | 80% | 30,385 psi | 50% | 2520 fps | 99.7% |
| Alliant Power Pro 1200-R | 40.8 gr | 84% | 41,684 psi | 69% | 2789 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 40,553 psi | 67% | 2736 fps | 95.3% |
| Alliant Reloder-10x | <<locked>> | 80% | 37,811 psi | 63% | 2618 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 98% | 47,558 psi | 79% | 2864 fps | 95.4% |
| Alliant Reloder-7 | <<locked>> | 80% | 46,035 psi | 76% | 2710 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 40,292 psi | 67% | 2595 fps | 99.2% |
| Baschieri & Pellagri 107 | <<locked>> | 96% | 49,792 psi | 83% | 2890 fps | 95.1% |
| Bofors RP3 | <<locked>> | 96% | 39,958 psi | 66% | 2736 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 82% | 36,869 psi | 61% | 2556 fps | 95.1% |
| Hodgdon BL-C2 | <<locked>> | 86% | 36,419 psi | 61% | 2651 fps | 95.1% |
| Hodgdon CFE223 | <<locked>> | 92% | 49,734 psi | 83% | 2956 fps | 95.8% |
| Hodgdon H322 | <<locked>> | 80% | 36,463 psi | 61% | 2618 fps | 98.1% |
| Hodgdon H335 | <<locked>> | 80% | 36,912 psi | 61% | 2628 fps | 97.3% |
| Hodgdon H4198 | <<locked>> | 80% | 46,064 psi | 77% | 2703 fps | 99.4% |
| Hodgdon H4895 | <<locked>> | 90% | 41,930 psi | 70% | 2746 fps | 95.2% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 42,830 psi | 71% | 2808 fps | 95.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,627 psi | 41% | 1565 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 43,323 psi | 72% | 2749 fps | 95.5% |
| IMR 3031 | <<locked>> | 80% | 28,906 psi | 48% | 2484 fps | 96.5% |
| IMR 4064 | <<locked>> | 98% | 47,703 psi | 79% | 2812 fps | 95.4% |
| IMR 4198 | <<locked>> | 80% | 39,160 psi | 65% | 2605 fps | 100% |
| IMR 4895 | <<locked>> | 96% | 45,513 psi | 76% | 2844 fps | 95.7% |
| IMR 8208 XBR | <<locked>> | 86% | 38,914 psi | 65% | 2644 fps | 95.1% |
| Lovex D073.4 | <<locked>> | 80% | 43,395 psi | 72% | 2743 fps | 98% |
| Lovex D073.5 | <<locked>> | 80% | 35,375 psi | 59% | 2569 fps | 95.1% |
| Lovex D073.6 | <<locked>> | 86% | 34,142 psi | 57% | 2595 fps | 95.7% |
| Lovex S053 | <<locked>> | 80% | 50,792 psi | 84% | 2694 fps | 100% |
| Lovex S060 | <<locked>> | 92% | 45,774 psi | 76% | 2730 fps | 95.5% |
| Lovex S062 | <<locked>> | 92% | 38,493 psi | 64% | 2654 fps | 95.1% |
| Norma 200 | <<locked>> | 80% | 42,902 psi | 71% | 2694 fps | 100% |
| Norma 201 | <<locked>> | 88% | 38,305 psi | 64% | 2635 fps | 95% |
| Norma 202 | <<locked>> | 82% | 31,343 psi | 52% | 2497 fps | 95.4% |
| Norma 203B | <<locked>> | 96% | 43,627 psi | 72% | 2795 fps | 95.1% |
| Ramshot Big Game | <<locked>> | 98% | 47,123 psi | 78% | 2864 fps | 95.5% |
| Ramshot Wild Boar | 47.7 gr | 92% | 46,035 psi | 76% | 2822 fps | 95.6% |
| Ramshot X-Terminator | <<locked>> | 88% | 45,701 psi | 76% | 2753 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,511 psi | 41% | 1598 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 36,289 psi | 60% | 2589 fps | 95.9% |
| ReloadSwiss RS 52 | <<locked>> | 96% | 46,441 psi | 77% | 2910 fps | 95% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 38,957 psi | 65% | 2756 fps | 96% |
| Rottweil R 901 | <<locked>> | 80% | 33,156 psi | 55% | 2500 fps | 95.7% |
| Rottweil R 902 | <<locked>> | 90% | 38,508 psi | 64% | 2631 fps | 95.1% |
| Shooters World AR Plus | <<locked>> | 80% | 43,395 psi | 72% | 2743 fps | 98% |
| Shooters World Match Rifle | <<locked>> | 86% | 34,142 psi | 57% | 2595 fps | 95.7% |
| Shooters World Precision | <<locked>> | 92% | 38,493 psi | 64% | 2654 fps | 95.1% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 41,220 psi | 68% | 2654 fps | 95.3% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 46,601 psi | 77% | 2477 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 40,408 psi | 67% | 2694 fps | 98% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 38,377 psi | 64% | 2625 fps | 99.1% |
| SNPE Vectan SP 9 | <<locked>> | 94% | 45,658 psi | 76% | 2802 fps | 95.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 31,720 psi | 53% | 2418 fps | 95.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 29,124 psi | 48% | 2372 fps | 95.7% |
| Somchem S321 | <<locked>> | 84% | 39,073 psi | 65% | 2674 fps | 95.6% |
| Somchem S335 | <<locked>> | 80% | 31,111 psi | 52% | 2425 fps | 96.3% |
| Somchem S341 | <<locked>> | 92% | 44,396 psi | 74% | 2762 fps | 95% |
| Vihtavuori N120 | <<locked>> | 80% | 44,860 psi | 75% | 2654 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 36,114 psi | 60% | 2526 fps | 99.6% |
| Vihtavuori N133 | <<locked>> | 80% | 31,517 psi | 52% | 2434 fps | 98.1% |
| Vihtavuori N135 | <<locked>> | 80% | 26,527 psi | 44% | 2382 fps | 96.7% |
| Vihtavuori N140 | <<locked>> | 82% | 29,805 psi | 50% | 2438 fps | 95.2% |
| Vihtavuori N150 | <<locked>> | 96% | 37,173 psi | 62% | 2625 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 86% | 38,885 psi | 65% | 2641 fps | 95.2% |
| Vihtavuori N540 | <<locked>> | 86% | 32,372 psi | 54% | 2516 fps | 95.6% |
| Winchester 748 | 43.7 gr | 86% | 37,376 psi | 62% | 2674 fps | 95.7% |
| Winchester StaBALL Match | <<locked>> | 92% | 41,945 psi | 70% | 2753 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 80 powders for .308 Win. Ackley Improved loaded with the .308 | 139gr | Prvi Partizan FMJ. ReloadSwiss RS 52 delivers the highest muzzle velocity at 3,028 fps; across all powders the maximum-charge window runs from 1,752 fps to 3,028 fps. Accurate 2495 gives the best case fill at 100 %, and 80 of the 80 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (415 MPa), the top charges use 55–90 %, leaving at least 10 % headroom. The 139.0 gr projectile in 0.308" calls for a 1:14.5 twist; slower twists will usually not stabilise this weight. Accurate 2495, Accurate 4064, 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 1200-R, Winchester 748, Ramshot Wild Boar rank at the top here: for .308 Win. Ackley Improved with the .308 | 139gr | Prvi Partizan FMJ 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.