Load Specifications
Load data in caliber .308 Win. with .308 | 125gr | Hornady ECX bullet and 55 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are SNPE Vectan SP 10, ADI AR 2219 and Hodgdon H335.
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>> | 86% | 53,272 psi | 89% | 2923 fps | 100% |
| Accurate 2015ᴾ | <<locked>> | 100% | 53,461 psi | 89% | 3009 fps | 100% |
| Accurate 2460 | <<locked>> | 96% | 52,344 psi | 87% | 3018 fps | 98.8% |
| Accurate 2495ᴾ | <<locked>> | 100% | 41,002 psi | 68% | 2871 fps | 99.4% |
| Accurate 2520ᴾ | <<locked>> | 100% | 52,968 psi | 88% | 3068 fps | 98.6% |
| Accurate 4064ᴾ | <<locked>> | 100% | 38,159 psi | 63% | 2828 fps | 96.9% |
| Accurate LT-30 | <<locked>> | 92% | 54,041 psi | 90% | 2940 fps | 99.7% |
| Accurate LT-32 | <<locked>> | 90% | 51,329 psi | 85% | 2897 fps | 98.3% |
| ADI AR 2207 | <<locked>> | 90% | 53,693 psi | 89% | 2979 fps | 100% |
| ADI AR 2219 | <<locked>> | 92% | 52,156 psi | 87% | 3041 fps | 99.5% |
| ADI Benchmark 8208ᴾ | <<locked>> | 100% | 53,127 psi | 88% | 3031 fps | 97% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 49,763 psi | 83% | 3041 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 96% | 53,388 psi | 89% | 3136 fps | 96.6% |
| Alliant Reloder-10x | <<locked>> | 96% | 54,128 psi | 90% | 3038 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 88% | 51,866 psi | 86% | 2943 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 92% | 52,547 psi | 87% | 2927 fps | 99.7% |
| Hodgdon Benchmark | <<locked>> | 98% | 52,852 psi | 88% | 2979 fps | 97.5% |
| Hodgdon BL-C2ᴾ | <<locked>> | 100% | 50,227 psi | 83% | 3045 fps | 97.2% |
| Hodgdon H322 | <<locked>> | 96% | 53,679 psi | 89% | 3068 fps | 99.6% |
| Hodgdon H335 | <<locked>> | 94% | 51,706 psi | 86% | 3035 fps | 98.9% |
| Hodgdon H4198 | <<locked>> | 88% | 52,547 psi | 87% | 2936 fps | 99.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,039 psi | 53% | 1814 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 47,311 psi | 79% | 3025 fps | 99.6% |
| IMR 4198 | <<locked>> | 94% | 52,359 psi | 87% | 2966 fps | 100% |
| IMR 4227 | <<locked>> | 84% | 52,591 psi | 87% | 2897 fps | 100% |
| IMR 8208 XBRᴾ | <<locked>> | 100% | 53,127 psi | 88% | 3031 fps | 97% |
| Lovex D073.4 | <<locked>> | 90% | 53,490 psi | 89% | 3045 fps | 98.5% |
| Lovex D073.5 | <<locked>> | 96% | 52,808 psi | 88% | 3025 fps | 97.9% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 46,601 psi | 77% | 2976 fps | 97.6% |
| Lovex S053 | <<locked>> | 86% | 54,070 psi | 90% | 2881 fps | 100% |
| Norma 200 | <<locked>> | 92% | 54,056 psi | 90% | 3018 fps | 100% |
| Norma 201ᴾ | <<locked>> | 100% | 47,993 psi | 80% | 2946 fps | 96.1% |
| Norma 202ᴾ | <<locked>> | 100% | 48,153 psi | 80% | 2976 fps | 98.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 31,865 psi | 53% | 1857 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 84% | 52,518 psi | 87% | 2933 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 96% | 53,432 psi | 89% | 3038 fps | 98.3% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 52,011 psi | 86% | 3009 fps | 98.8% |
| Shooters World AR Plus | <<locked>> | 90% | 53,490 psi | 89% | 3045 fps | 98.5% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 46,601 psi | 77% | 2976 fps | 97.6% |
| Shooters World Tactical Rifle | <<locked>> | 94% | 54,462 psi | 90% | 3002 fps | 96.8% |
| SNPE Vectan BA6 1/2 | <<locked>> | 88% | 51,967 psi | 86% | 2690 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 92% | 52,808 psi | 88% | 3048 fps | 99% |
| SNPE Vectan SP 3 | <<locked>> | 94% | 52,083 psi | 87% | 3002 fps | 99.8% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 51,837 psi | 86% | 2936 fps | 98.8% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 41,452 psi | 69% | 2769 fps | 98% |
| Somchem S321 | <<locked>> | 98% | 54,273 psi | 90% | 3071 fps | 97.5% |
| Somchem S335ᴾ | <<locked>> | 100% | 49,835 psi | 83% | 2927 fps | 99.2% |
| Vihtavuori N120 | <<locked>> | 90% | 53,780 psi | 89% | 2930 fps | 100% |
| Vihtavuori N130 | <<locked>> | 96% | 51,648 psi | 86% | 2936 fps | 100% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 51,010 psi | 85% | 2936 fps | 99.9% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 42,772 psi | 71% | 2890 fps | 99.5% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 45,368 psi | 75% | 2897 fps | 98.2% |
| Vihtavuori N530ᴾ | <<locked>> | 100% | 53,896 psi | 90% | 3031 fps | 97.2% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 44,034 psi | 73% | 2887 fps | 97.5% |
| Winchester 748ᴾ | <<locked>> | 100% | 51,677 psi | 86% | 3071 fps | 97.7% |
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% | 43,424 psi | 72% | 2762 fps | 99.8% |
| Accurate 2015 | <<locked>> | 80% | 28,094 psi | 47% | 2490 fps | 95.6% |
| Accurate 2460 | <<locked>> | 86% | 37,028 psi | 62% | 2733 fps | 95.5% |
| Accurate 2495 | <<locked>> | 88% | 26,992 psi | 45% | 2536 fps | 95.6% |
| Accurate 2520 | <<locked>> | 90% | 36,854 psi | 61% | 2766 fps | 95% |
| Accurate 4064 | <<locked>> | 96% | 33,460 psi | 56% | 2720 fps | 95.3% |
| Accurate LT-30 | <<locked>> | 80% | 37,159 psi | 62% | 2628 fps | 97.1% |
| Accurate LT-32 | <<locked>> | 80% | 37,521 psi | 62% | 2631 fps | 95% |
| ADI AR 2207 | <<locked>> | 80% | 38,928 psi | 65% | 2736 fps | 100% |
| ADI AR 2219 | 39 gr | 80% | 34,374 psi | 57% | 2687 fps | 96% |
| ADI Benchmark 8208 | <<locked>> | 96% | 46,702 psi | 78% | 2920 fps | 95.6% |
| Alliant AR-Comp | <<locked>> | 80% | 25,860 psi | 43% | 2500 fps | 97.2% |
| Alliant Power Pro 1200-R | <<locked>> | 92% | 46,659 psi | 78% | 3015 fps | 95% |
| Alliant Reloder-10x | <<locked>> | 80% | 32,648 psi | 54% | 2628 fps | 98.3% |
| Alliant Reloder-7 | <<locked>> | 80% | 40,466 psi | 67% | 2743 fps | 99.8% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 35,447 psi | 59% | 2608 fps | 97% |
| Hodgdon Benchmark | <<locked>> | 92% | 43,976 psi | 73% | 2818 fps | 95.6% |
| Hodgdon BL-C2 | <<locked>> | 96% | 43,584 psi | 72% | 2923 fps | 95.6% |
| Hodgdon H322 | <<locked>> | 82% | 33,634 psi | 56% | 2671 fps | 95.7% |
| Hodgdon H335 | 42.4 gr | 84% | 36,390 psi | 60% | 2740 fps | 95.5% |
| Hodgdon H4198 | <<locked>> | 80% | 41,017 psi | 68% | 2726 fps | 97.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,453 psi | 39% | 1621 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 29,994 psi | 50% | 2631 fps | 95.1% |
| IMR 4198 | <<locked>> | 80% | 34,577 psi | 57% | 2631 fps | 99.3% |
| IMR 4227 | <<locked>> | 80% | 46,586 psi | 77% | 2802 fps | 100% |
| IMR 8208 XBR | <<locked>> | 96% | 46,702 psi | 78% | 2920 fps | 95.6% |
| Lovex D073.4 | <<locked>> | 82% | 39,798 psi | 66% | 2795 fps | 95.6% |
| Lovex D073.5 | <<locked>> | 90% | 42,380 psi | 70% | 2841 fps | 95.6% |
| Lovex D073.6 | <<locked>> | 94% | 37,724 psi | 63% | 2799 fps | 95.2% |
| Lovex S053 | <<locked>> | 80% | 45,484 psi | 76% | 2753 fps | 100% |
| Norma 200 | <<locked>> | 80% | 36,796 psi | 61% | 2710 fps | 99.5% |
| Norma 201 | <<locked>> | 98% | 45,063 psi | 75% | 2890 fps | 95.3% |
| Norma 202 | <<locked>> | 90% | 34,592 psi | 57% | 2697 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,438 psi | 39% | 1663 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 46,427 psi | 77% | 2838 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 88% | 40,944 psi | 68% | 2808 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 88% | 36,027 psi | 60% | 2694 fps | 95.2% |
| Shooters World AR Plus | <<locked>> | 82% | 39,798 psi | 66% | 2795 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 94% | 37,724 psi | 63% | 2799 fps | 95.2% |
| Shooters World Tactical Rifle | <<locked>> | 90% | 47,326 psi | 79% | 2884 fps | 95.2% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 41,901 psi | 70% | 2543 fps | 100% |
| SNPE Vectan SP 10 | 41.4 gr | 82% | 37,347 psi | 62% | 2749 fps | 95.7% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 33,417 psi | 56% | 2635 fps | 96.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 35,360 psi | 59% | 2621 fps | 95.1% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 32,198 psi | 53% | 2562 fps | 95.2% |
| Somchem S321 | <<locked>> | 92% | 44,164 psi | 73% | 2897 fps | 95.4% |
| Somchem S335 | <<locked>> | 86% | 32,329 psi | 54% | 2572 fps | 95.1% |
| Vihtavuori N120 | <<locked>> | 80% | 39,146 psi | 65% | 2697 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 31,488 psi | 52% | 2543 fps | 97.7% |
| Vihtavuori N133 | <<locked>> | 82% | 28,906 psi | 48% | 2480 fps | 95.7% |
| Vihtavuori N135 | <<locked>> | 86% | 27,079 psi | 45% | 2513 fps | 95.2% |
| Vihtavuori N140 | <<locked>> | 92% | 35,114 psi | 58% | 2684 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 96% | 47,108 psi | 78% | 2920 fps | 95.8% |
| Vihtavuori N540 | <<locked>> | 94% | 36,056 psi | 60% | 2720 fps | 95.2% |
| Winchester 748 | <<locked>> | 94% | 42,047 psi | 70% | 2890 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 86 powders for .308 Win. loaded with the .308 | 125gr | Hornady ECX. Alliant Power Pro 1200-R delivers the highest muzzle velocity at 3,136 fps; across all powders the maximum-charge window runs from 1,814 fps to 3,136 fps. Accurate 2015 gives the best case fill at 100 %, and 86 of the 86 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (415 MPa), the top charges use 53–90 %, leaving at least 10 % headroom. The 125.0 gr projectile in 0.308" calls for a 1:15.5 twist; slower twists will usually not stabilise this weight. Accurate 2015, Accurate 2495, Accurate 2520 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. SNPE Vectan SP 10, ADI AR 2219, Hodgdon H335 rank at the top here: for .308 Win. with the .308 | 125gr | Hornady ECX they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2200, Accurate 2230, ADI AR 2206H 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.