Load Specifications
Load data in caliber .308 Marlin Express with .308 | 120gr | GM Geschoss-Manufaktur Splinter TIP bullet and 22 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-10x, Norma 200 and ADI AR 2207.
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% | 43,192 psi | 90% | 2710 fps | 98.8% |
| Accurate 2015ᴾ | <<locked>> | 100% | 40,886 psi | 85% | 2759 fps | 97.6% |
| Accurate LT-30 | <<locked>> | 90% | 41,481 psi | 87% | 2661 fps | 96% |
| ADI AR 2207 | <<locked>> | 90% | 42,192 psi | 88% | 2776 fps | 100% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 38,029 psi | 79% | 2782 fps | 99.1% |
| Alliant Reloder-10x | <<locked>> | 96% | 41,989 psi | 88% | 2802 fps | 98.8% |
| Alliant Reloder-7 | <<locked>> | 88% | 41,611 psi | 87% | 2726 fps | 99% |
| Baschieri & Pellagri 106 | <<locked>> | 92% | 41,974 psi | 88% | 2694 fps | 96.5% |
| Hodgdon H322 | <<locked>> | 96% | 42,003 psi | 88% | 2805 fps | 95.9% |
| Hodgdon H4198 | <<locked>> | 88% | 43,004 psi | 90% | 2707 fps | 95.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 30,385 psi | 63% | 1739 fps | 100% |
| IMR 4198 | <<locked>> | 94% | 42,482 psi | 89% | 2756 fps | 99.4% |
| IMR 4227 | <<locked>> | 82% | 40,901 psi | 85% | 2661 fps | 99.8% |
| Lovex S053 | <<locked>> | 84% | 42,192 psi | 88% | 2671 fps | 100% |
| Norma 200 | <<locked>> | 92% | 41,945 psi | 88% | 2789 fps | 99.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 30,110 psi | 63% | 1781 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 84% | 42,670 psi | 89% | 2736 fps | 99.9% |
| SNPE Vectan BA6 1/2 | <<locked>> | 86% | 41,205 psi | 86% | 2510 fps | 100% |
| SNPE Vectan SP 3 | <<locked>> | 94% | 40,625 psi | 85% | 2753 fps | 96.6% |
| Vihtavuori N120 | <<locked>> | 90% | 42,467 psi | 89% | 2736 fps | 100% |
| Vihtavuori N130 | <<locked>> | 98% | 43,236 psi | 90% | 2756 fps | 98.7% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 40,016 psi | 84% | 2697 fps | 97.1% |
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% | 35,143 psi | 73% | 2549 fps | 97.1% |
| Accurate 2015 | <<locked>> | 94% | 33,460 psi | 70% | 2602 fps | 95.5% |
| Accurate LT-30 | <<locked>> | 88% | 38,798 psi | 81% | 2608 fps | 95.3% |
| ADI AR 2207 | 29.1 gr | 80% | 30,719 psi | 64% | 2533 fps | 99.1% |
| Alliant AR-Comp | <<locked>> | 90% | 27,644 psi | 58% | 2507 fps | 95.4% |
| Alliant Reloder-10x | 31.5 gr | 86% | 30,458 psi | 64% | 2546 fps | 95.7% |
| Alliant Reloder-7 | <<locked>> | 80% | 32,300 psi | 67% | 2523 fps | 96.9% |
| Baschieri & Pellagri 106 | <<locked>> | 88% | 36,767 psi | 77% | 2589 fps | 95% |
| Hodgdon H322 | <<locked>> | 94% | 39,276 psi | 82% | 2746 fps | 95.1% |
| Hodgdon H4198 | <<locked>> | 86% | 40,567 psi | 85% | 2657 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 22,205 psi | 46% | 1555 fps | 100% |
| IMR 4198 | <<locked>> | 80% | 28,152 psi | 59% | 2415 fps | 95.5% |
| IMR 4227 | <<locked>> | 80% | 38,479 psi | 80% | 2612 fps | 99.5% |
| Lovex S053 | <<locked>> | 80% | 37,405 psi | 78% | 2582 fps | 100% |
| Norma 200 | 30.4 gr | 80% | 28,282 psi | 59% | 2474 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 21,857 psi | 46% | 1588 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 37,289 psi | 78% | 2631 fps | 99.3% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 34,983 psi | 73% | 2402 fps | 100% |
| SNPE Vectan SP 3 | <<locked>> | 90% | 36,100 psi | 75% | 2654 fps | 95.3% |
| Vihtavuori N120 | <<locked>> | 80% | 31,009 psi | 65% | 2507 fps | 99.7% |
| Vihtavuori N130 | <<locked>> | 86% | 29,805 psi | 62% | 2464 fps | 95% |
| Vihtavuori N133 | <<locked>> | 96% | 35,317 psi | 74% | 2598 fps | 95.7% |
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 22 powders for .308 Marlin Express loaded with the .308 | 120gr | GM Geschoss-Manufaktur Splinter TIP. Hodgdon H322 delivers the highest muzzle velocity at 2,805 fps; across all powders the maximum-charge window runs from 1,739 fps to 2,805 fps. Accurate 2015 gives the best case fill at 100 %, and 22 of the 22 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (330 MPa), the top charges use 63–90 %, leaving at least 10 % headroom. The 120.0 gr projectile in 0.308" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. Accurate 2015, 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 Reloder-10x, Norma 200, ADI AR 2207 rank at the top here: for .308 Marlin Express with the .308 | 120gr | GM Geschoss-Manufaktur Splinter TIP 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.