Load Specifications
Load data in caliber .308 Marlin Express with .308 | 150gr | NorthFork Bonded Core 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% | 40,915 psi | 85% | 2474 fps | 99.4% |
| Accurate 2460 | <<locked>> | 90% | 41,669 psi | 87% | 2507 fps | 97.4% |
| Accurate 2495ᴾ | <<locked>> | 100% | 40,176 psi | 84% | 2536 fps | 99.6% |
| Accurate 2520 | <<locked>> | 94% | 41,524 psi | 87% | 2546 fps | 97% |
| Accurate 4064ᴾ | <<locked>> | 100% | 37,391 psi | 78% | 2500 fps | 97.3% |
| Accurate LT-30 | <<locked>> | 84% | 41,626 psi | 87% | 2402 fps | 98.6% |
| Accurate LT-32 | <<locked>> | 84% | 42,018 psi | 88% | 2405 fps | 96.9% |
| ADI AR 2207 | <<locked>> | 82% | 41,104 psi | 86% | 2448 fps | 100% |
| ADI AR 2219 | <<locked>> | 86% | 41,611 psi | 87% | 2526 fps | 98.5% |
| Alliant AR-Comp | <<locked>> | 96% | 42,714 psi | 89% | 2589 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 88% | 41,452 psi | 87% | 2497 fps | 99.9% |
| Alliant Reloder-7 | <<locked>> | 82% | 42,714 psi | 89% | 2454 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 86% | 42,221 psi | 88% | 2434 fps | 98.9% |
| Hodgdon BL-C2 | <<locked>> | 96% | 42,264 psi | 88% | 2575 fps | 95.8% |
| Hodgdon H322 | <<locked>> | 90% | 43,018 psi | 90% | 2549 fps | 98.7% |
| Hodgdon H335 | <<locked>> | 88% | 40,843 psi | 85% | 2516 fps | 97.4% |
| Hodgdon H4198 | <<locked>> | 82% | 43,047 psi | 90% | 2438 fps | 98.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,460 psi | 68% | 1572 fps | 100% |
| IMR 3031 | <<locked>> | 98% | 43,134 psi | 90% | 2615 fps | 99.4% |
| IMR 4198 | <<locked>> | 88% | 43,294 psi | 90% | 2480 fps | 100% |
| Lovex D073.4 | <<locked>> | 84% | 42,337 psi | 88% | 2523 fps | 96.9% |
| Lovex D073.5 | <<locked>> | 90% | 41,597 psi | 87% | 2507 fps | 96% |
| Lovex D073.6 | <<locked>> | 98% | 42,003 psi | 88% | 2569 fps | 97.1% |
| Norma 200 | <<locked>> | 84% | 41,626 psi | 87% | 2480 fps | 100% |
| Norma 202 | <<locked>> | 96% | 41,278 psi | 86% | 2526 fps | 97.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,169 psi | 67% | 1608 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 90% | 42,714 psi | 89% | 2520 fps | 96.8% |
| Rottweil R 901 | <<locked>> | 94% | 43,018 psi | 90% | 2516 fps | 97.7% |
| Shooters World AR Plus | <<locked>> | 84% | 42,337 psi | 88% | 2523 fps | 96.9% |
| Shooters World Match Rifle | <<locked>> | 98% | 42,003 psi | 88% | 2569 fps | 97.1% |
| SNPE Vectan SP 10 | <<locked>> | 86% | 42,032 psi | 88% | 2530 fps | 97.6% |
| SNPE Vectan SP 3 | <<locked>> | 88% | 42,322 psi | 88% | 2503 fps | 99.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 94% | 42,076 psi | 88% | 2444 fps | 97.5% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 40,437 psi | 84% | 2434 fps | 98.2% |
| Somchem S335 | <<locked>> | 94% | 40,683 psi | 85% | 2444 fps | 98.1% |
| Vihtavuori N120 | <<locked>> | 82% | 41,205 psi | 86% | 2405 fps | 100% |
| Vihtavuori N130 | <<locked>> | 90% | 42,134 psi | 88% | 2451 fps | 99.8% |
| Vihtavuori N133 | <<locked>> | 94% | 41,423 psi | 87% | 2451 fps | 99.4% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 41,481 psi | 87% | 2539 fps | 99.7% |
| Vihtavuori N140 | <<locked>> | 98% | 41,785 psi | 87% | 2510 fps | 98% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 42,685 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% | 28,079 psi | 59% | 2201 fps | 96.4% |
| Accurate 2460 | <<locked>> | 84% | 33,997 psi | 71% | 2356 fps | 95.2% |
| Accurate 2495 | <<locked>> | 86% | 25,324 psi | 53% | 2208 fps | 95.7% |
| Accurate 2520 | 37.1 gr | 90% | 36,289 psi | 76% | 2448 fps | 95.5% |
| Accurate 4064 | <<locked>> | 94% | 30,835 psi | 64% | 2359 fps | 95.1% |
| Accurate LT-30 | <<locked>> | 80% | 36,883 psi | 77% | 2310 fps | 97.6% |
| Accurate LT-32 | <<locked>> | 80% | 37,275 psi | 78% | 2313 fps | 95.6% |
| ADI AR 2207 | <<locked>> | 80% | 38,740 psi | 81% | 2405 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 34,156 psi | 71% | 2375 fps | 96.6% |
| Alliant AR-Comp | 30.2 gr | 80% | 25,744 psi | 54% | 2208 fps | 97.9% |
| Alliant Reloder-10x | <<locked>> | 80% | 32,489 psi | 68% | 2316 fps | 98.8% |
| Alliant Reloder-7 | <<locked>> | 80% | 40,030 psi | 84% | 2408 fps | 99.9% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 34,896 psi | 73% | 2297 fps | 97.3% |
| Hodgdon BL-C2 | <<locked>> | 94% | 39,668 psi | 83% | 2526 fps | 95.1% |
| Hodgdon H322 | <<locked>> | 80% | 31,212 psi | 65% | 2303 fps | 95.5% |
| Hodgdon H335 | <<locked>> | 82% | 33,489 psi | 70% | 2362 fps | 95.2% |
| Hodgdon H4198 | <<locked>> | 80% | 40,669 psi | 85% | 2395 fps | 97.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,743 psi | 50% | 1401 fps | 100% |
| IMR 3031 | 31.7 gr | 84% | 27,949 psi | 58% | 2274 fps | 95% |
| IMR 4198 | <<locked>> | 80% | 34,287 psi | 72% | 2310 fps | 99.6% |
| Lovex D073.4 | <<locked>> | 80% | 36,666 psi | 77% | 2411 fps | 95.3% |
| Lovex D073.5 | <<locked>> | 88% | 38,957 psi | 81% | 2457 fps | 95.3% |
| Lovex D073.6 | <<locked>> | 94% | 36,622 psi | 77% | 2467 fps | 95.6% |
| Norma 200 | <<locked>> | 80% | 36,811 psi | 77% | 2392 fps | 99.8% |
| Norma 202 | <<locked>> | 90% | 34,214 psi | 71% | 2385 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,641 psi | 49% | 1434 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 37,521 psi | 78% | 2421 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 86% | 33,910 psi | 71% | 2336 fps | 95.1% |
| Shooters World AR Plus | <<locked>> | 80% | 36,666 psi | 77% | 2411 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 94% | 36,622 psi | 77% | 2467 fps | 95.6% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 34,418 psi | 72% | 2375 fps | 95.4% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 32,909 psi | 69% | 2313 fps | 97.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 33,112 psi | 69% | 2267 fps | 95% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 31,937 psi | 67% | 2260 fps | 95.8% |
| Somchem S335 | <<locked>> | 84% | 30,139 psi | 63% | 2224 fps | 95% |
| Vihtavuori N120 | <<locked>> | 80% | 38,841 psi | 81% | 2369 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 31,125 psi | 65% | 2234 fps | 98.2% |
| Vihtavuori N133 | <<locked>> | 80% | 27,064 psi | 57% | 2142 fps | 95.6% |
| Vihtavuori N135 | <<locked>> | 84% | 25,367 psi | 53% | 2178 fps | 95.2% |
| Vihtavuori N140 | <<locked>> | 90% | 32,590 psi | 68% | 2323 fps | 95.3% |
| Vihtavuori N540 | <<locked>> | 94% | 35,288 psi | 74% | 2398 fps | 95.6% |
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 .308 | 150gr | NorthFork Bonded Core. IMR 3031 delivers the highest muzzle velocity at 2,615 fps; across all powders the maximum-charge window runs from 1,572 fps to 2,615 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 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 | NorthFork Bonded Core 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.