Load Specifications
Load data in caliber .308 Win. with .308 | 125gr | Sierra MatchKing bullet and 52 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon H335, Hodgdon H322 and Shooters World AR Plus.
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% | 51,416 psi | 85% | 2858 fps | 100% |
| Accurate 2015ᴾ | <<locked>> | 100% | 51,111 psi | 85% | 2936 fps | 99.8% |
| Accurate 2460 | <<locked>> | 98% | 53,563 psi | 89% | 2995 fps | 98.5% |
| Accurate 2495ᴾ | <<locked>> | 100% | 39,247 psi | 65% | 2805 fps | 98.9% |
| Accurate 2520ᴾ | <<locked>> | 100% | 50,053 psi | 83% | 2982 fps | 97.7% |
| Accurate LT-30 | <<locked>> | 92% | 52,098 psi | 87% | 2867 fps | 99.3% |
| Accurate LT-32 | <<locked>> | 92% | 52,518 psi | 87% | 2877 fps | 98% |
| ADI AR 2207 | <<locked>> | 90% | 51,459 psi | 85% | 2917 fps | 100% |
| ADI AR 2219 | <<locked>> | 94% | 53,040 psi | 88% | 3018 fps | 99.3% |
| ADI Benchmark 8208ᴾ | <<locked>> | 100% | 50,430 psi | 84% | 2943 fps | 95.8% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 47,340 psi | 79% | 2969 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 98% | 53,824 psi | 89% | 3100 fps | 96% |
| Alliant Reloder-10x | <<locked>> | 96% | 51,619 psi | 86% | 2966 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 90% | 53,330 psi | 89% | 2927 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 94% | 53,476 psi | 89% | 2900 fps | 99.6% |
| Hodgdon Benchmarkᴾ | <<locked>> | 100% | 53,780 psi | 89% | 2949 fps | 97.1% |
| Hodgdon BL-C2ᴾ | <<locked>> | 100% | 47,572 psi | 79% | 2959 fps | 96% |
| Hodgdon H322 | <<locked>> | 96% | 51,155 psi | 85% | 2989 fps | 99.1% |
| Hodgdon H335 | <<locked>> | 96% | 52,649 psi | 87% | 3012 fps | 98.6% |
| Hodgdon H4198 | <<locked>> | 90% | 53,925 psi | 90% | 2917 fps | 99.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 31,937 psi | 53% | 1781 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 44,802 psi | 74% | 2943 fps | 98.9% |
| IMR 4198 | <<locked>> | 96% | 53,534 psi | 89% | 2946 fps | 100% |
| IMR 4227 | <<locked>> | 86% | 54,143 psi | 90% | 2881 fps | 100% |
| IMR 8208 XBRᴾ | <<locked>> | 100% | 50,430 psi | 84% | 2943 fps | 95.8% |
| Lovex D073.4 | <<locked>> | 90% | 51,184 psi | 85% | 2966 fps | 97.6% |
| Lovex D073.5 | <<locked>> | 98% | 53,853 psi | 89% | 2999 fps | 97.5% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 44,208 psi | 73% | 2894 fps | 96.5% |
| Lovex S053 | <<locked>> | 86% | 52,562 psi | 87% | 2828 fps | 100% |
| Norma 200 | <<locked>> | 92% | 52,127 psi | 87% | 2953 fps | 100% |
| Norma 202ᴾ | <<locked>> | 100% | 45,788 psi | 76% | 2897 fps | 97.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 31,821 psi | 53% | 1821 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 86% | 53,969 psi | 90% | 2917 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 98% | 54,331 psi | 90% | 3012 fps | 98% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 50,096 psi | 83% | 2936 fps | 98.1% |
| Shooters World AR Plus | <<locked>> | 90% | 51,184 psi | 85% | 2966 fps | 97.6% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 44,208 psi | 73% | 2894 fps | 96.5% |
| SNPE Vectan BA6 1/2 | <<locked>> | 90% | 53,098 psi | 88% | 2671 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 94% | 53,621 psi | 89% | 3022 fps | 98.7% |
| SNPE Vectan SP 3 | <<locked>> | 96% | 52,837 psi | 88% | 2979 fps | 99.7% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 49,661 psi | 83% | 2861 fps | 98% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 39,668 psi | 66% | 2694 fps | 97% |
| Somchem S321 | <<locked>> | 98% | 51,517 psi | 86% | 2986 fps | 96.4% |
| Somchem S335ᴾ | <<locked>> | 100% | 48,037 psi | 80% | 2858 fps | 98.6% |
| Vihtavuori N120 | <<locked>> | 90% | 51,517 psi | 86% | 2864 fps | 100% |
| Vihtavuori N130 | <<locked>> | 98% | 52,750 psi | 88% | 2917 fps | 100% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 48,675 psi | 81% | 2861 fps | 99.6% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 40,538 psi | 67% | 2812 fps | 99% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 43,265 psi | 72% | 2822 fps | 97.3% |
| Vihtavuori N530ᴾ | <<locked>> | 100% | 51,271 psi | 85% | 2946 fps | 96% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 41,959 psi | 70% | 2808 fps | 96.4% |
| Winchester 748ᴾ | <<locked>> | 100% | 49,008 psi | 81% | 2979 fps | 96.5% |
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 1680 | <<locked>> | 80% | 42,148 psi | 70% | 2700 fps | 99.5% |
| Accurate 2015 | <<locked>> | 82% | 29,124 psi | 48% | 2487 fps | 95.4% |
| Accurate 2460 | <<locked>> | 88% | 38,189 psi | 63% | 2720 fps | 95.3% |
| Accurate 2495 | <<locked>> | 90% | 27,833 psi | 46% | 2530 fps | 95.5% |
| Accurate 2520 | <<locked>> | 94% | 40,437 psi | 67% | 2808 fps | 95.5% |
| Accurate LT-30 | <<locked>> | 80% | 35,969 psi | 60% | 2559 fps | 96.2% |
| Accurate LT-32 | <<locked>> | 84% | 41,307 psi | 69% | 2671 fps | 95.5% |
| ADI AR 2207 | <<locked>> | 80% | 37,608 psi | 62% | 2677 fps | 100% |
| ADI AR 2219 | <<locked>> | 82% | 35,462 psi | 59% | 2677 fps | 95.7% |
| ADI Benchmark 8208 | <<locked>> | 98% | 47,326 psi | 79% | 2890 fps | 95.1% |
| Alliant AR-Comp | <<locked>> | 80% | 25,121 psi | 42% | 2434 fps | 96.1% |
| Alliant Power Pro 1200-R | <<locked>> | 96% | 50,357 psi | 84% | 3041 fps | 95.2% |
| Alliant Reloder-10x | <<locked>> | 80% | 31,676 psi | 53% | 2569 fps | 97.6% |
| Alliant Reloder-7 | <<locked>> | 80% | 39,175 psi | 65% | 2677 fps | 99.5% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 34,330 psi | 57% | 2546 fps | 96% |
| Hodgdon Benchmark | <<locked>> | 94% | 44,933 psi | 75% | 2799 fps | 95.2% |
| Hodgdon BL-C2 | <<locked>> | 98% | 44,527 psi | 74% | 2904 fps | 95.2% |
| Hodgdon H322 | 37.2 gr | 84% | 34,751 psi | 58% | 2657 fps | 95.5% |
| Hodgdon H335 | 40.7 gr | 86% | 37,391 psi | 62% | 2723 fps | 95.2% |
| Hodgdon H4198 | <<locked>> | 80% | 39,624 psi | 66% | 2654 fps | 96.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,453 psi | 39% | 1591 fps | 100% |
| IMR 3031 | <<locked>> | 90% | 32,692 psi | 54% | 2667 fps | 95.7% |
| IMR 4198 | <<locked>> | 80% | 33,518 psi | 56% | 2569 fps | 98.8% |
| IMR 4227 | <<locked>> | 80% | 45,252 psi | 75% | 2743 fps | 100% |
| IMR 8208 XBR | <<locked>> | 98% | 47,326 psi | 79% | 2890 fps | 95.1% |
| Lovex D073.4 | <<locked>> | 84% | 41,147 psi | 68% | 2785 fps | 95.3% |
| Lovex D073.5 | <<locked>> | 92% | 43,497 psi | 72% | 2822 fps | 95.3% |
| Lovex D073.6 | <<locked>> | 98% | 41,249 psi | 69% | 2838 fps | 95.7% |
| Lovex S053 | <<locked>> | 80% | 44,208 psi | 73% | 2697 fps | 100% |
| Norma 200 | <<locked>> | 80% | 35,752 psi | 59% | 2651 fps | 99.1% |
| Norma 202 | <<locked>> | 94% | 37,884 psi | 63% | 2736 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,525 psi | 39% | 1631 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 44,773 psi | 74% | 2772 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 90% | 42,003 psi | 70% | 2792 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 92% | 39,421 psi | 65% | 2733 fps | 95.7% |
| Shooters World AR Plus | 39.9 gr | 84% | 41,147 psi | 68% | 2785 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 98% | 41,249 psi | 69% | 2838 fps | 95.7% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 40,944 psi | 68% | 2493 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 84% | 38,450 psi | 64% | 2740 fps | 95.5% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 32,082 psi | 53% | 2562 fps | 95.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 92% | 38,928 psi | 65% | 2661 fps | 95.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 35,114 psi | 58% | 2595 fps | 95.6% |
| Somchem S321 | <<locked>> | 96% | 48,283 psi | 80% | 2933 fps | 95.7% |
| Somchem S335 | <<locked>> | 90% | 35,259 psi | 59% | 2608 fps | 95.6% |
| Vihtavuori N120 | <<locked>> | 80% | 37,753 psi | 63% | 2638 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 30,414 psi | 51% | 2477 fps | 96.9% |
| Vihtavuori N133 | <<locked>> | 84% | 29,892 psi | 50% | 2474 fps | 95.5% |
| Vihtavuori N135 | <<locked>> | 88% | 28,021 psi | 47% | 2507 fps | 95% |
| Vihtavuori N140 | <<locked>> | 94% | 35,911 psi | 60% | 2664 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 98% | 47,935 psi | 80% | 2894 fps | 95.3% |
| Vihtavuori N540 | <<locked>> | 98% | 39,349 psi | 65% | 2756 fps | 95.7% |
| Winchester 748 | <<locked>> | 98% | 45,992 psi | 76% | 2927 fps | 95.8% |
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 52 powders for .308 Win. loaded with the .308 | 125gr | Sierra MatchKing. Alliant Power Pro 1200-R delivers the highest muzzle velocity at 3,100 fps; across all powders the maximum-charge window runs from 1,781 fps to 3,100 fps. Accurate 2015 gives the best case fill at 100 %, and 52 of the 52 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 1:12.0 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. Hodgdon H335, Hodgdon H322, Shooters World AR Plus rank at the top here: for .308 Win. with the .308 | 125gr | Sierra MatchKing 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.