Load Specifications
Load data in caliber .308 Marlin Express with .311 | 123gr | Sellier & Bellot FMJ bullet and 27 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant AR-Comp, Alliant Reloder-10x and ADI AR 2219.
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% | 41,916 psi | 88% | 2680 fps | 99.1% |
| Accurate 2015 | <<locked>> | 96% | 41,133 psi | 86% | 2753 fps | 98.3% |
| Accurate 2495ᴾ | <<locked>> | 100% | 34,708 psi | 73% | 2700 fps | 97.2% |
| Accurate LT-30 | <<locked>> | 88% | 43,033 psi | 90% | 2690 fps | 97.3% |
| ADI AR 2207 | <<locked>> | 86% | 42,076 psi | 88% | 2756 fps | 100% |
| ADI AR 2219 | <<locked>> | 90% | 42,772 psi | 89% | 2818 fps | 97% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 43,294 psi | 90% | 2884 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 92% | 42,003 psi | 88% | 2789 fps | 99.2% |
| Alliant Reloder-7 | <<locked>> | 84% | 41,017 psi | 86% | 2703 fps | 99.3% |
| Baschieri & Pellagri 106 | <<locked>> | 88% | 40,988 psi | 86% | 2671 fps | 97.1% |
| Hodgdon H322 | <<locked>> | 92% | 41,510 psi | 87% | 2792 fps | 96.7% |
| Hodgdon H4198 | <<locked>> | 84% | 42,105 psi | 88% | 2687 fps | 96.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 31,502 psi | 66% | 1759 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 40,886 psi | 85% | 2844 fps | 97.5% |
| IMR 4198 | <<locked>> | 90% | 41,756 psi | 87% | 2736 fps | 99.7% |
| Norma 200 | <<locked>> | 88% | 42,119 psi | 88% | 2776 fps | 99.6% |
| Norma 202ᴾ | <<locked>> | 100% | 41,553 psi | 87% | 2799 fps | 95.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 31,386 psi | 66% | 1801 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 84% | 42,873 psi | 90% | 2520 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 90% | 42,975 psi | 90% | 2818 fps | 95.9% |
| SNPE Vectan SP 3 | <<locked>> | 92% | 43,018 psi | 90% | 2792 fps | 98% |
| SNPE Vectan Tubal 3000 | <<locked>> | 98% | 43,192 psi | 90% | 2726 fps | 95.9% |
| Somchem S335 | <<locked>> | 98% | 41,365 psi | 86% | 2720 fps | 96.5% |
| Vihtavuori N120 | <<locked>> | 86% | 42,221 psi | 88% | 2713 fps | 100% |
| Vihtavuori N130 | <<locked>> | 94% | 43,047 psi | 90% | 2743 fps | 99.2% |
| Vihtavuori N133 | <<locked>> | 98% | 42,206 psi | 88% | 2736 fps | 98.3% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 37,014 psi | 77% | 2723 fps | 97.6% |
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% | 39,392 psi | 82% | 2631 fps | 98.7% |
| Accurate 2015 | <<locked>> | 86% | 30,226 psi | 63% | 2503 fps | 95% |
| Accurate 2495 | <<locked>> | 96% | 30,342 psi | 63% | 2595 fps | 95.7% |
| Accurate LT-30 | <<locked>> | 82% | 35,911 psi | 75% | 2543 fps | 95.3% |
| ADI AR 2207 | <<locked>> | 80% | 34,664 psi | 72% | 2608 fps | 99.9% |
| ADI AR 2219 | 36.9 gr | 86% | 37,521 psi | 78% | 2707 fps | 95.5% |
| Alliant AR-Comp | 33.7 gr | 84% | 26,165 psi | 55% | 2451 fps | 95.7% |
| Alliant Reloder-10x | 31.3 gr | 80% | 28,921 psi | 60% | 2484 fps | 95.9% |
| Alliant Reloder-7 | <<locked>> | 80% | 36,289 psi | 76% | 2605 fps | 98.6% |
| Baschieri & Pellagri 106 | <<locked>> | 84% | 36,056 psi | 75% | 2569 fps | 95.7% |
| Hodgdon H322 | <<locked>> | 88% | 36,405 psi | 76% | 2680 fps | 95.1% |
| Hodgdon H4198 | <<locked>> | 80% | 37,202 psi | 78% | 2582 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,134 psi | 48% | 1572 fps | 100% |
| IMR 3031 | <<locked>> | 94% | 34,011 psi | 71% | 2684 fps | 95.2% |
| IMR 4198 | <<locked>> | 80% | 31,328 psi | 65% | 2497 fps | 97.6% |
| Norma 200 | <<locked>> | 80% | 32,793 psi | 69% | 2572 fps | 98% |
| Norma 202 | <<locked>> | 98% | 39,088 psi | 82% | 2749 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 22,916 psi | 48% | 1604 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 38,682 psi | 81% | 2451 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 88% | 40,176 psi | 84% | 2759 fps | 95.1% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 33,736 psi | 70% | 2589 fps | 95.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 96% | 40,495 psi | 85% | 2674 fps | 95.1% |
| Somchem S335 | <<locked>> | 94% | 36,724 psi | 77% | 2625 fps | 95.2% |
| Vihtavuori N120 | <<locked>> | 80% | 34,882 psi | 73% | 2572 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 28,152 psi | 59% | 2402 fps | 95.1% |
| Vihtavuori N133 | <<locked>> | 88% | 31,328 psi | 65% | 2493 fps | 95.2% |
| Vihtavuori N135 | <<locked>> | 94% | 30,705 psi | 64% | 2569 fps | 95.3% |
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 27 powders for .308 Marlin Express loaded with the .311 | 123gr | Sellier & Bellot FMJ. Alliant AR-Comp delivers the highest muzzle velocity at 2,884 fps; across all powders the maximum-charge window runs from 1,759 fps to 2,884 fps. Accurate 2495 gives the best case fill at 100 %, and 27 of the 27 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (330 MPa), the top charges use 66–90 %, leaving at least 10 % headroom. Accurate 2495, Alliant AR-Comp, Hodgdon TrailBoss 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 AR-Comp, Alliant Reloder-10x, ADI AR 2219 rank at the top here: for .308 Marlin Express with the .311 | 123gr | Sellier & Bellot 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.