Load Specifications
Load data in caliber .308 Marlin Express with .308 | 150gr | Prvi Partizan FMJ bullet and 42 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% | 40,669 psi | 85% | 2470 fps | 99.4% |
| Accurate 2460 | <<locked>> | 90% | 41,756 psi | 87% | 2510 fps | 97.4% |
| Accurate 2495ᴾ | <<locked>> | 100% | 40,306 psi | 84% | 2539 fps | 99.6% |
| Accurate 2520 | <<locked>> | 94% | 41,611 psi | 87% | 2546 fps | 97% |
| Accurate 4064ᴾ | <<locked>> | 100% | 37,492 psi | 78% | 2503 fps | 97.3% |
| Accurate LT-30 | <<locked>> | 84% | 41,698 psi | 87% | 2402 fps | 98.6% |
| Accurate LT-32 | <<locked>> | 84% | 42,148 psi | 88% | 2408 fps | 96.9% |
| ADI AR 2207 | <<locked>> | 82% | 41,162 psi | 86% | 2448 fps | 100% |
| ADI AR 2219 | <<locked>> | 86% | 41,350 psi | 86% | 2520 fps | 98.4% |
| Alliant AR-Comp | <<locked>> | 96% | 42,395 psi | 89% | 2582 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 88% | 41,553 psi | 87% | 2497 fps | 99.9% |
| Alliant Reloder-7 | <<locked>> | 82% | 42,453 psi | 89% | 2451 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 86% | 42,293 psi | 88% | 2434 fps | 98.9% |
| Hodgdon Benchmark | <<locked>> | 92% | 43,062 psi | 90% | 2477 fps | 95.9% |
| Hodgdon BL-C2 | <<locked>> | 96% | 42,395 psi | 89% | 2575 fps | 95.9% |
| Hodgdon H322 | <<locked>> | 90% | 43,091 psi | 90% | 2552 fps | 98.7% |
| Hodgdon H335 | <<locked>> | 88% | 40,944 psi | 86% | 2516 fps | 97.4% |
| Hodgdon H4198 | <<locked>> | 82% | 43,134 psi | 90% | 2438 fps | 98.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,169 psi | 67% | 1568 fps | 100% |
| IMR 3031 | <<locked>> | 98% | 42,902 psi | 90% | 2612 fps | 99.3% |
| IMR 4198 | <<locked>> | 86% | 40,901 psi | 85% | 2438 fps | 100% |
| Lovex D073.4 | <<locked>> | 84% | 42,090 psi | 88% | 2516 fps | 96.8% |
| Lovex D073.5 | <<locked>> | 90% | 41,698 psi | 87% | 2507 fps | 96% |
| Lovex D073.6 | <<locked>> | 98% | 42,105 psi | 88% | 2569 fps | 97.1% |
| Norma 200 | <<locked>> | 84% | 41,713 psi | 87% | 2480 fps | 100% |
| Norma 202 | <<locked>> | 96% | 41,075 psi | 86% | 2523 fps | 97.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,242 psi | 67% | 1608 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 90% | 42,786 psi | 89% | 2523 fps | 96.8% |
| Rottweil R 901 | <<locked>> | 94% | 42,772 psi | 89% | 2513 fps | 97.6% |
| Shooters World AR Plus | <<locked>> | 84% | 42,090 psi | 88% | 2516 fps | 96.8% |
| Shooters World Match Rifle | <<locked>> | 98% | 42,105 psi | 88% | 2569 fps | 97.1% |
| SNPE Vectan SP 10 | <<locked>> | 86% | 41,829 psi | 87% | 2523 fps | 97.6% |
| SNPE Vectan SP 3 | <<locked>> | 88% | 42,453 psi | 89% | 2503 fps | 99.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 94% | 42,206 psi | 88% | 2444 fps | 97.5% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 40,524 psi | 85% | 2434 fps | 98.2% |
| Somchem S335 | <<locked>> | 96% | 43,120 psi | 90% | 2487 fps | 98.6% |
| Vihtavuori N120 | <<locked>> | 82% | 41,307 psi | 86% | 2408 fps | 100% |
| Vihtavuori N130 | <<locked>> | 90% | 42,279 psi | 88% | 2454 fps | 99.9% |
| Vihtavuori N133 | <<locked>> | 94% | 41,524 psi | 87% | 2454 fps | 99.4% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 41,553 psi | 87% | 2539 fps | 99.7% |
| Vihtavuori N140 | <<locked>> | 98% | 41,510 psi | 87% | 2503 fps | 97.9% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 42,815 psi | 89% | 2543 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 2015 | <<locked>> | 80% | 27,905 psi | 58% | 2195 fps | 96.3% |
| Accurate 2460 | <<locked>> | 84% | 34,069 psi | 71% | 2359 fps | 95.2% |
| Accurate 2495 | <<locked>> | 86% | 25,135 psi | 53% | 2205 fps | 95.7% |
| Accurate 2520 | 37 gr | 90% | 36,085 psi | 75% | 2441 fps | 95.4% |
| Accurate 4064 | <<locked>> | 94% | 30,922 psi | 65% | 2359 fps | 95.1% |
| Accurate LT-30 | <<locked>> | 80% | 36,666 psi | 77% | 2306 fps | 97.5% |
| Accurate LT-32 | <<locked>> | 80% | 37,057 psi | 77% | 2310 fps | 95.5% |
| ADI AR 2207 | <<locked>> | 80% | 38,798 psi | 81% | 2408 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 33,953 psi | 71% | 2369 fps | 96.5% |
| Alliant AR-Comp | 30.2 gr | 80% | 25,817 psi | 54% | 2208 fps | 97.9% |
| Alliant Reloder-10x | <<locked>> | 80% | 32,314 psi | 68% | 2313 fps | 98.7% |
| Alliant Reloder-7 | <<locked>> | 80% | 40,089 psi | 84% | 2408 fps | 99.9% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 34,940 psi | 73% | 2297 fps | 97.3% |
| Hodgdon Benchmark | <<locked>> | 90% | 40,814 psi | 85% | 2438 fps | 95.3% |
| Hodgdon BL-C2 | <<locked>> | 94% | 39,755 psi | 83% | 2526 fps | 95.1% |
| Hodgdon H322 | <<locked>> | 80% | 31,270 psi | 65% | 2303 fps | 95.5% |
| Hodgdon H335 | <<locked>> | 82% | 33,547 psi | 70% | 2365 fps | 95.2% |
| Hodgdon H4198 | <<locked>> | 80% | 40,393 psi | 84% | 2388 fps | 97.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,772 psi | 50% | 1401 fps | 100% |
| IMR 3031 | 31.7 gr | 84% | 27,992 psi | 58% | 2274 fps | 95% |
| IMR 4198 | <<locked>> | 80% | 34,360 psi | 72% | 2310 fps | 99.6% |
| Lovex D073.4 | <<locked>> | 80% | 36,434 psi | 76% | 2408 fps | 95.2% |
| Lovex D073.5 | <<locked>> | 88% | 38,740 psi | 81% | 2451 fps | 95.2% |
| Lovex D073.6 | <<locked>> | 94% | 36,709 psi | 77% | 2467 fps | 95.6% |
| Norma 200 | <<locked>> | 80% | 36,564 psi | 76% | 2385 fps | 99.8% |
| Norma 202 | <<locked>> | 90% | 34,011 psi | 71% | 2379 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,670 psi | 49% | 1434 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 37,579 psi | 79% | 2425 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 86% | 33,982 psi | 71% | 2336 fps | 95.1% |
| Shooters World AR Plus | <<locked>> | 80% | 36,434 psi | 76% | 2408 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 94% | 36,709 psi | 77% | 2467 fps | 95.6% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 34,229 psi | 72% | 2372 fps | 95.4% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 32,953 psi | 69% | 2316 fps | 97.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 35,143 psi | 73% | 2313 fps | 95.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 31,763 psi | 66% | 2257 fps | 95.7% |
| Somchem S335 | <<locked>> | 84% | 30,197 psi | 63% | 2224 fps | 95% |
| Vihtavuori N120 | <<locked>> | 80% | 38,957 psi | 81% | 2369 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 31,227 psi | 65% | 2238 fps | 98.2% |
| Vihtavuori N133 | <<locked>> | 80% | 27,137 psi | 57% | 2146 fps | 95.6% |
| Vihtavuori N135 | <<locked>> | 84% | 25,411 psi | 53% | 2178 fps | 95.2% |
| Vihtavuori N140 | <<locked>> | 90% | 32,387 psi | 68% | 2320 fps | 95.2% |
| Vihtavuori N540 | <<locked>> | 94% | 35,433 psi | 74% | 2402 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 42 powders for .308 Marlin Express loaded with the .308 | 150gr | Prvi Partizan FMJ. IMR 3031 delivers the highest muzzle velocity at 2,612 fps; across all powders the maximum-charge window runs from 1,568 fps to 2,612 fps. Accurate 2495 gives the best case fill at 100 %, and 42 of the 42 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (330 MPa), the top charges use 67–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.308" calls for a 1:14.0 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 .308 | 150gr | Prvi Partizan 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.