Load Specifications
Load data in caliber .308 Marlin Express with .307 | 150gr | Rhino Solid Shank bullet and 41 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are IMR 3031, Accurate 2520 and Alliant AR-Comp.
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 2015 | <<locked>> | 92% | 43,236 psi | 90% | 2536 fps | 99.8% |
| Accurate 2460 | <<locked>> | 88% | 41,481 psi | 87% | 2530 fps | 97.7% |
| Accurate 2495ᴾ | <<locked>> | 100% | 43,149 psi | 90% | 2605 fps | 99.9% |
| Accurate 2520 | <<locked>> | 92% | 41,423 psi | 87% | 2569 fps | 97.4% |
| Accurate 4064ᴾ | <<locked>> | 100% | 40,103 psi | 84% | 2572 fps | 98.2% |
| Accurate LT-30 | <<locked>> | 82% | 40,973 psi | 86% | 2415 fps | 98.8% |
| Accurate LT-32 | <<locked>> | 82% | 41,365 psi | 86% | 2421 fps | 97.2% |
| ADI AR 2207 | <<locked>> | 82% | 43,279 psi | 90% | 2500 fps | 100% |
| ADI AR 2219 | <<locked>> | 84% | 41,089 psi | 86% | 2539 fps | 98.7% |
| Alliant AR-Comp | <<locked>> | 94% | 42,409 psi | 89% | 2605 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 86% | 41,350 psi | 86% | 2516 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 84% | 41,800 psi | 87% | 2451 fps | 99.1% |
| Hodgdon Benchmark | <<locked>> | 90% | 42,641 psi | 89% | 2497 fps | 96.3% |
| Hodgdon BL-C2 | <<locked>> | 94% | 42,264 psi | 88% | 2602 fps | 96.3% |
| Hodgdon H322 | <<locked>> | 88% | 42,424 psi | 89% | 2566 fps | 98.9% |
| Hodgdon H335 | <<locked>> | 88% | 43,062 psi | 90% | 2579 fps | 98.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,822 psi | 69% | 1601 fps | 100% |
| IMR 3031 | <<locked>> | 96% | 42,786 psi | 89% | 2635 fps | 99.5% |
| IMR 4198 | <<locked>> | 86% | 42,801 psi | 89% | 2497 fps | 100% |
| Lovex D073.4 | <<locked>> | 82% | 41,568 psi | 87% | 2533 fps | 97.1% |
| Lovex D073.5 | <<locked>> | 88% | 41,234 psi | 86% | 2523 fps | 96.4% |
| Lovex D073.6 | <<locked>> | 96% | 42,206 psi | 88% | 2595 fps | 97.5% |
| Norma 200 | <<locked>> | 82% | 41,249 psi | 86% | 2493 fps | 100% |
| Norma 202 | <<locked>> | 94% | 40,988 psi | 86% | 2543 fps | 97.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,561 psi | 68% | 1634 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 88% | 42,395 psi | 89% | 2543 fps | 97.1% |
| Rottweil R 901 | <<locked>> | 92% | 42,612 psi | 89% | 2536 fps | 98% |
| Shooters World AR Plus | <<locked>> | 82% | 41,568 psi | 87% | 2533 fps | 97.1% |
| Shooters World Match Rifle | <<locked>> | 96% | 42,206 psi | 88% | 2595 fps | 97.5% |
| SNPE Vectan SP 10 | <<locked>> | 84% | 41,510 psi | 87% | 2543 fps | 97.9% |
| SNPE Vectan SP 3 | <<locked>> | 86% | 41,785 psi | 87% | 2516 fps | 99.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 92% | 41,829 psi | 87% | 2464 fps | 97.9% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 42,815 psi | 89% | 2500 fps | 98.9% |
| Somchem S321 | <<locked>> | 90% | 42,525 psi | 89% | 2569 fps | 96% |
| Somchem S335 | <<locked>> | 94% | 42,946 psi | 90% | 2510 fps | 98.8% |
| Vihtavuori N130 | <<locked>> | 88% | 41,814 psi | 87% | 2470 fps | 99.9% |
| Vihtavuori N133 | <<locked>> | 92% | 41,278 psi | 86% | 2474 fps | 99.6% |
| Vihtavuori N135 | <<locked>> | 98% | 41,597 psi | 87% | 2562 fps | 99.8% |
| Vihtavuori N140 | <<locked>> | 96% | 41,263 psi | 86% | 2523 fps | 98.2% |
| Vihtavuori N540 | <<locked>> | 98% | 42,627 psi | 89% | 2566 fps | 98% |
| Winchester 748 | <<locked>> | 94% | 43,236 psi | 90% | 2615 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 2015 | <<locked>> | 80% | 29,762 psi | 62% | 2264 fps | 97.4% |
| Accurate 2460 | <<locked>> | 82% | 33,823 psi | 71% | 2375 fps | 95.6% |
| Accurate 2495 | <<locked>> | 82% | 23,801 psi | 50% | 2178 fps | 95.4% |
| Accurate 2520 | 37.3 gr | 86% | 33,678 psi | 70% | 2411 fps | 95.1% |
| Accurate 4064 | <<locked>> | 92% | 31,082 psi | 65% | 2382 fps | 95.6% |
| Accurate LT-30 | <<locked>> | 80% | 38,508 psi | 80% | 2369 fps | 98.3% |
| Accurate LT-32 | <<locked>> | 80% | 38,885 psi | 81% | 2375 fps | 96.6% |
| ADI AR 2207 | <<locked>> | 80% | 40,582 psi | 85% | 2457 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 35,969 psi | 75% | 2438 fps | 97.6% |
| Alliant AR-Comp | 31.8 gr | 80% | 27,180 psi | 57% | 2274 fps | 98.8% |
| Alliant Reloder-10x | <<locked>> | 80% | 34,127 psi | 71% | 2372 fps | 99.3% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 36,695 psi | 77% | 2356 fps | 98.2% |
| Hodgdon Benchmark | <<locked>> | 88% | 40,176 psi | 84% | 2451 fps | 95.6% |
| Hodgdon BL-C2 | <<locked>> | 92% | 39,421 psi | 82% | 2546 fps | 95.5% |
| Hodgdon H322 | <<locked>> | 80% | 32,735 psi | 68% | 2365 fps | 96.6% |
| Hodgdon H335 | <<locked>> | 80% | 33,025 psi | 69% | 2375 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,149 psi | 50% | 1427 fps | 100% |
| IMR 3031 | 32.6 gr | 82% | 27,746 psi | 58% | 2290 fps | 95.4% |
| IMR 4198 | <<locked>> | 80% | 35,926 psi | 75% | 2365 fps | 99.9% |
| Lovex D073.4 | <<locked>> | 80% | 38,638 psi | 81% | 2477 fps | 96.3% |
| Lovex D073.5 | <<locked>> | 86% | 38,464 psi | 80% | 2470 fps | 95.6% |
| Lovex D073.6 | <<locked>> | 90% | 34,229 psi | 72% | 2438 fps | 95.3% |
| Norma 200 | <<locked>> | 80% | 38,769 psi | 81% | 2448 fps | 100% |
| Norma 202 | <<locked>> | 86% | 31,937 psi | 67% | 2352 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,062 psi | 50% | 1460 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 34,983 psi | 73% | 2392 fps | 95% |
| Rottweil R 901 | <<locked>> | 84% | 33,707 psi | 70% | 2352 fps | 95.5% |
| Shooters World AR Plus | <<locked>> | 80% | 38,638 psi | 81% | 2477 fps | 96.3% |
| Shooters World Match Rifle | <<locked>> | 90% | 34,229 psi | 72% | 2438 fps | 95.3% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 36,201 psi | 76% | 2438 fps | 96.5% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 34,751 psi | 73% | 2379 fps | 98.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 32,764 psi | 68% | 2283 fps | 95.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 29,675 psi | 62% | 2231 fps | 95.4% |
| Somchem S321 | <<locked>> | 88% | 39,740 psi | 83% | 2516 fps | 95.2% |
| Somchem S335 | <<locked>> | 82% | 29,892 psi | 62% | 2241 fps | 95.3% |
| Vihtavuori N130 | <<locked>> | 80% | 32,822 psi | 69% | 2293 fps | 98.9% |
| Vihtavuori N133 | <<locked>> | 80% | 28,543 psi | 60% | 2205 fps | 96.7% |
| Vihtavuori N135 | <<locked>> | 82% | 25,338 psi | 53% | 2195 fps | 95.7% |
| Vihtavuori N140 | <<locked>> | 88% | 32,314 psi | 68% | 2339 fps | 95.7% |
| Vihtavuori N540 | <<locked>> | 90% | 32,909 psi | 69% | 2369 fps | 95.3% |
| Winchester 748 | <<locked>> | 90% | 38,000 psi | 79% | 2513 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 41 powders for .308 Marlin Express loaded with the .307 | 150gr | Rhino Solid Shank. IMR 3031 delivers the highest muzzle velocity at 2,635 fps; across all powders the maximum-charge window runs from 1,601 fps to 2,635 fps. Accurate 2495 gives the best case fill at 100 %, and 41 of the 41 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (330 MPa), the top charges use 68–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.307" calls for a 1:16.5 twist; slower twists will usually not stabilise this weight. Accurate 2495, Accurate 4064, 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. IMR 3031, Accurate 2520, Alliant AR-Comp rank at the top here: for .308 Marlin Express with the .307 | 150gr | Rhino Solid Shank 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.