Load Specifications
Load data in caliber .308 Win. Ackley Improved with .308 | 130gr | Barnes X BT bullet and 75 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 Hodgdon BL-C2.
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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Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 82% | 53,185 psi | 88% | 2864 fps | 100% |
| Accurate 2015 | <<locked>> | 94% | 52,794 psi | 88% | 2936 fps | 100% |
| Accurate 2230 | <<locked>> | 86% | 54,114 psi | 90% | 3009 fps | 96% |
| Accurate 2460 | <<locked>> | 90% | 51,503 psi | 86% | 2943 fps | 99.1% |
| Accurate 2495ᴾ | <<locked>> | 100% | 52,185 psi | 87% | 2986 fps | 100% |
| Accurate 2520 | <<locked>> | 94% | 51,909 psi | 86% | 2992 fps | 98.9% |
| Accurate 4064ᴾ | <<locked>> | 100% | 48,312 psi | 80% | 2953 fps | 99.2% |
| Accurate LT-30 | <<locked>> | 88% | 53,795 psi | 89% | 2884 fps | 99.9% |
| Accurate LT-32 | <<locked>> | 88% | 54,259 psi | 90% | 2897 fps | 99.1% |
| ADI AR 2206H | <<locked>> | 98% | 54,447 psi | 90% | 3031 fps | 96.7% |
| ADI AR 2207 | <<locked>> | 84% | 51,822 psi | 86% | 2884 fps | 100% |
| ADI AR 2219 | <<locked>> | 88% | 52,881 psi | 88% | 2999 fps | 99.8% |
| ADI Benchmark 8208 | <<locked>> | 96% | 54,012 psi | 90% | 2995 fps | 97.8% |
| Alliant AR-Comp | <<locked>> | 96% | 51,880 psi | 86% | 3009 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 90% | 51,648 psi | 86% | 3048 fps | 96.9% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 51,721 psi | 86% | 2992 fps | 96.8% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 47,152 psi | 78% | 2930 fps | 96.2% |
| Alliant Reloder-10x | <<locked>> | 90% | 52,823 psi | 88% | 2953 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 84% | 53,142 psi | 88% | 2897 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 88% | 52,721 psi | 88% | 2877 fps | 99.9% |
| Bofors RP3ᴾ | <<locked>> | 100% | 47,195 psi | 78% | 2936 fps | 96.3% |
| Hodgdon Benchmark | <<locked>> | 94% | 53,969 psi | 90% | 2946 fps | 98.3% |
| Hodgdon BL-C2 | <<locked>> | 96% | 52,228 psi | 87% | 3022 fps | 98.1% |
| Hodgdon CFE223 | <<locked>> | 94% | 53,838 psi | 89% | 3100 fps | 95.9% |
| Hodgdon H322 | <<locked>> | 90% | 51,634 psi | 86% | 2979 fps | 99.8% |
| Hodgdon H335 | <<locked>> | 90% | 52,533 psi | 87% | 2995 fps | 99.4% |
| Hodgdon H4198 | <<locked>> | 84% | 52,881 psi | 88% | 2890 fps | 99.7% |
| Hodgdon H4895 | <<locked>> | 96% | 51,517 psi | 86% | 2992 fps | 96.7% |
| Hodgdon LEVERevolutionᴾ | <<locked>> | 100% | 52,794 psi | 88% | 3061 fps | 97.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,895 psi | 56% | 1814 fps | 100% |
| Hodgdon VARGET | <<locked>> | 98% | 53,229 psi | 88% | 2995 fps | 96.9% |
| IMR 3031 | <<locked>> | 98% | 52,518 psi | 87% | 3051 fps | 100% |
| IMR 4198 | <<locked>> | 90% | 53,359 psi | 89% | 2920 fps | 100% |
| IMR 4895ᴾ | <<locked>> | 100% | 52,692 psi | 88% | 3041 fps | 96.5% |
| IMR 8208 XBR | <<locked>> | 96% | 54,012 psi | 90% | 2995 fps | 97.8% |
| Lovex D073.4 | <<locked>> | 84% | 51,488 psi | 86% | 2953 fps | 98.7% |
| Lovex D073.5 | <<locked>> | 90% | 51,445 psi | 85% | 2943 fps | 98.2% |
| Lovex D073.6 | <<locked>> | 98% | 52,866 psi | 88% | 3018 fps | 99% |
| Lovex S060 | <<locked>> | 96% | 52,678 psi | 88% | 2917 fps | 96.3% |
| Lovex S062ᴾ | <<locked>> | 100% | 50,894 psi | 85% | 2956 fps | 97.4% |
| Norma 200 | <<locked>> | 86% | 53,635 psi | 89% | 2936 fps | 100% |
| Norma 201 | <<locked>> | 98% | 53,838 psi | 89% | 2989 fps | 97.9% |
| Norma 202 | <<locked>> | 98% | 53,171 psi | 88% | 3002 fps | 99.5% |
| Norma 203Bᴾ | <<locked>> | 100% | 50,633 psi | 84% | 2989 fps | 95.9% |
| Ramshot Wild Boar | <<locked>> | 96% | 53,621 psi | 89% | 3018 fps | 96.4% |
| Ramshot X-Terminator | <<locked>> | 92% | 52,968 psi | 88% | 2943 fps | 96.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,011 psi | 57% | 1854 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 90% | 51,155 psi | 85% | 2949 fps | 98.6% |
| ReloadSwiss RS 52ᴾ | <<locked>> | 100% | 53,998 psi | 90% | 3114 fps | 95.9% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 45,353 psi | 75% | 2959 fps | 97.1% |
| Rottweil R 901 | <<locked>> | 94% | 52,591 psi | 87% | 2949 fps | 99.2% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 53,780 psi | 89% | 2976 fps | 97.8% |
| Shooters World AR Plus | <<locked>> | 84% | 51,488 psi | 86% | 2953 fps | 98.7% |
| Shooters World Match Rifle | <<locked>> | 98% | 52,866 psi | 88% | 3018 fps | 99% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 50,894 psi | 85% | 2956 fps | 97.4% |
| Shooters World Tactical Rifle | <<locked>> | 88% | 51,459 psi | 85% | 2904 fps | 96.9% |
| SNPE Vectan BA6 1/2 | <<locked>> | 84% | 52,489 psi | 87% | 2635 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 88% | 53,795 psi | 89% | 3005 fps | 99.4% |
| SNPE Vectan SP 3 | <<locked>> | 90% | 53,243 psi | 88% | 2963 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 98% | 52,895 psi | 88% | 2995 fps | 96.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 96% | 53,200 psi | 88% | 2904 fps | 99.3% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 48,530 psi | 81% | 2841 fps | 99.5% |
| Somchem S321 | <<locked>> | 92% | 52,214 psi | 87% | 2986 fps | 97.8% |
| Somchem S335 | <<locked>> | 96% | 51,909 psi | 86% | 2904 fps | 99.7% |
| Somchem S341 | <<locked>> | 96% | 51,779 psi | 86% | 2959 fps | 95.9% |
| Vihtavuori N120 | <<locked>> | 84% | 51,721 psi | 86% | 2831 fps | 100% |
| Vihtavuori N130 | <<locked>> | 92% | 52,982 psi | 88% | 2897 fps | 100% |
| Vihtavuori N133 | <<locked>> | 96% | 52,373 psi | 87% | 2900 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 51,285 psi | 85% | 2966 fps | 100% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 53,693 psi | 89% | 2979 fps | 99.6% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 43,700 psi | 73% | 2815 fps | 96.3% |
| Vihtavuori N530 | <<locked>> | 94% | 51,721 psi | 86% | 2946 fps | 97.5% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 52,185 psi | 87% | 2972 fps | 99.3% |
| Winchester 748 | <<locked>> | 96% | 52,707 psi | 88% | 3038 fps | 98.5% |
| Winchester StaBALL Match | <<locked>> | 98% | 51,967 psi | 86% | 3002 fps | 96.8% |
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% | 50,024 psi | 83% | 2815 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 35,041 psi | 58% | 2598 fps | 98.5% |
| Accurate 2230 | <<locked>> | 84% | 50,720 psi | 84% | 2949 fps | 95.2% |
| Accurate 2460 | <<locked>> | 80% | 37,695 psi | 63% | 2677 fps | 96.4% |
| Accurate 2495 | <<locked>> | 80% | 28,631 psi | 48% | 2497 fps | 96.9% |
| Accurate 2520 | <<locked>> | 82% | 35,186 psi | 58% | 2661 fps | 95.1% |
| Accurate 4064 | <<locked>> | 86% | 32,053 psi | 53% | 2602 fps | 95.4% |
| Accurate LT-30 | <<locked>> | 80% | 42,873 psi | 71% | 2694 fps | 98.9% |
| Accurate LT-32 | <<locked>> | 80% | 43,178 psi | 72% | 2700 fps | 97.4% |
| ADI AR 2206H | <<locked>> | 94% | 48,515 psi | 81% | 2927 fps | 95.4% |
| ADI AR 2207 | <<locked>> | 80% | 46,209 psi | 77% | 2795 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 41,046 psi | 68% | 2782 fps | 98.5% |
| ADI Benchmark 8208 | <<locked>> | 88% | 42,699 psi | 71% | 2789 fps | 95.3% |
| Alliant AR-Comp | <<locked>> | 80% | 31,879 psi | 53% | 2615 fps | 99.6% |
| Alliant Power Pro 1200-R | 42 gr | 86% | 45,527 psi | 76% | 2933 fps | 95.5% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 46,108 psi | 77% | 2887 fps | 95.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 98% | 44,411 psi | 74% | 2874 fps | 95.5% |
| Alliant Reloder-10x | <<locked>> | 80% | 39,595 psi | 66% | 2717 fps | 99.8% |
| Alliant Reloder-7 | <<locked>> | 80% | 47,268 psi | 79% | 2802 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 41,263 psi | 69% | 2677 fps | 98.9% |
| Bofors RP3 | <<locked>> | 98% | 44,237 psi | 73% | 2881 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 84% | 40,379 psi | 67% | 2690 fps | 95.4% |
| Hodgdon BL-C2 | 45.8 gr | 88% | 40,248 psi | 67% | 2795 fps | 95.4% |
| Hodgdon CFE223 | <<locked>> | 92% | 50,401 psi | 84% | 3038 fps | 95% |
| Hodgdon H322 | <<locked>> | 80% | 37,739 psi | 63% | 2710 fps | 97.7% |
| Hodgdon H335 | <<locked>> | 80% | 38,247 psi | 64% | 2720 fps | 96.9% |
| Hodgdon H4198 | <<locked>> | 80% | 46,934 psi | 78% | 2785 fps | 99.1% |
| Hodgdon H4895 | <<locked>> | 92% | 45,934 psi | 76% | 2887 fps | 95.4% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 43,845 psi | 73% | 2887 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,266 psi | 42% | 1621 fps | 100% |
| Hodgdon VARGET | <<locked>> | 94% | 47,021 psi | 78% | 2887 fps | 95.5% |
| IMR 3031 | <<locked>> | 80% | 30,647 psi | 51% | 2582 fps | 96.3% |
| IMR 4198 | <<locked>> | 80% | 40,263 psi | 67% | 2694 fps | 100% |
| IMR 4895 | <<locked>> | 96% | 46,557 psi | 77% | 2930 fps | 95% |
| IMR 8208 XBR | <<locked>> | 88% | 42,699 psi | 71% | 2789 fps | 95.3% |
| Lovex D073.4 | <<locked>> | 80% | 45,063 psi | 75% | 2838 fps | 97.6% |
| Lovex D073.5 | <<locked>> | 82% | 39,784 psi | 66% | 2723 fps | 95.6% |
| Lovex D073.6 | <<locked>> | 86% | 35,955 psi | 60% | 2694 fps | 95.4% |
| Lovex S060 | <<locked>> | 94% | 49,690 psi | 83% | 2864 fps | 95.6% |
| Lovex S062 | <<locked>> | 94% | 42,641 psi | 71% | 2802 fps | 95.5% |
| Norma 200 | <<locked>> | 80% | 45,208 psi | 75% | 2799 fps | 100% |
| Norma 201 | <<locked>> | 90% | 42,467 psi | 71% | 2779 fps | 95.4% |
| Norma 202 | <<locked>> | 82% | 33,040 psi | 55% | 2592 fps | 95.1% |
| Norma 203B | <<locked>> | 98% | 47,587 psi | 79% | 2936 fps | 95.2% |
| Ramshot Wild Boar | <<locked>> | 94% | 50,154 psi | 83% | 2963 fps | 95.7% |
| Ramshot X-Terminator | <<locked>> | 90% | 49,879 psi | 83% | 2894 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,280 psi | 42% | 1657 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 37,753 psi | 63% | 2680 fps | 95.5% |
| ReloadSwiss RS 52 | <<locked>> | 98% | 50,618 psi | 84% | 3054 fps | 95.1% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 40,030 psi | 67% | 2835 fps | 95.1% |
| Rottweil R 901 | <<locked>> | 80% | 35,752 psi | 59% | 2608 fps | 95.7% |
| Rottweil R 902 | <<locked>> | 92% | 42,946 psi | 71% | 2779 fps | 95.5% |
| Shooters World AR Plus | <<locked>> | 80% | 45,063 psi | 75% | 2838 fps | 97.6% |
| Shooters World Match Rifle | <<locked>> | 86% | 35,955 psi | 60% | 2694 fps | 95.4% |
| Shooters World Precision | <<locked>> | 94% | 42,641 psi | 71% | 2802 fps | 95.5% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 45,107 psi | 75% | 2792 fps | 95.5% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 47,558 psi | 79% | 2562 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 41,669 psi | 69% | 2785 fps | 97.6% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 39,653 psi | 66% | 2717 fps | 98.8% |
| SNPE Vectan SP 9 | <<locked>> | 96% | 49,763 psi | 83% | 2943 fps | 95.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 33,431 psi | 56% | 2513 fps | 95.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 30,516 psi | 51% | 2461 fps | 95.3% |
| Somchem S321 | <<locked>> | 84% | 40,466 psi | 67% | 2762 fps | 95.1% |
| Somchem S335 | <<locked>> | 80% | 33,069 psi | 55% | 2523 fps | 96.1% |
| Somchem S341 | <<locked>> | 94% | 48,704 psi | 81% | 2907 fps | 95.1% |
| Vihtavuori N120 | <<locked>> | 80% | 46,180 psi | 77% | 2746 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 37,710 psi | 63% | 2621 fps | 99.5% |
| Vihtavuori N133 | <<locked>> | 80% | 33,011 psi | 55% | 2526 fps | 97.8% |
| Vihtavuori N135 | <<locked>> | 80% | 28,485 psi | 47% | 2484 fps | 96.6% |
| Vihtavuori N140 | <<locked>> | 84% | 33,228 psi | 55% | 2579 fps | 95.6% |
| Vihtavuori N150 | <<locked>> | 98% | 41,002 psi | 68% | 2762 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 88% | 42,844 psi | 71% | 2785 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 86% | 34,127 psi | 57% | 2615 fps | 95.3% |
| Winchester 748 | 44 gr | 86% | 38,667 psi | 64% | 2759 fps | 95.1% |
| Winchester StaBALL Match | <<locked>> | 94% | 45,948 psi | 76% | 2894 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 75 powders for .308 Win. Ackley Improved loaded with the .308 | 130gr | Barnes X BT. ReloadSwiss RS 52 delivers the highest muzzle velocity at 3,114 fps; across all powders the maximum-charge window runs from 1,814 fps to 3,114 fps. Accurate 2495 gives the best case fill at 100 %, and 75 of the 75 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 130.0 gr projectile in 0.308" calls for a 1:14.0 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, Hodgdon BL-C2 rank at the top here: for .308 Win. Ackley Improved with the .308 | 130gr | Barnes X BT 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.