Load Specifications
Load data in caliber .308 Marlin Express with .308 | 150gr | TWENTY-NINE Ball Tip bullet and 42 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant AR-Comp, IMR 3031 and Hodgdon H322.
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>> | 94% | 42,351 psi | 88% | 2487 fps | 99.5% |
| Accurate 2460 | <<locked>> | 92% | 43,279 psi | 90% | 2526 fps | 97.6% |
| Accurate 2495ᴾ | <<locked>> | 100% | 38,914 psi | 81% | 2507 fps | 99.4% |
| Accurate 2520 | <<locked>> | 96% | 43,279 psi | 90% | 2566 fps | 97.2% |
| Accurate 4064ᴾ | <<locked>> | 100% | 36,230 psi | 76% | 2470 fps | 96.8% |
| Accurate LT-30 | <<locked>> | 84% | 40,698 psi | 85% | 2372 fps | 98.2% |
| Accurate LT-32 | <<locked>> | 84% | 41,075 psi | 86% | 2375 fps | 96.5% |
| ADI AR 2207 | <<locked>> | 84% | 42,743 psi | 89% | 2464 fps | 100% |
| ADI AR 2219 | <<locked>> | 88% | 43,207 psi | 90% | 2543 fps | 98.6% |
| Alliant AR-Comp | <<locked>> | 96% | 41,423 psi | 87% | 2556 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 90% | 43,207 psi | 90% | 2516 fps | 99.9% |
| Alliant Reloder-7 | <<locked>> | 82% | 41,611 psi | 87% | 2425 fps | 99.9% |
| Baschieri & Pellagri 106 | <<locked>> | 86% | 41,466 psi | 87% | 2408 fps | 98.6% |
| Hodgdon H322 | <<locked>> | 90% | 42,105 psi | 88% | 2523 fps | 98.4% |
| Hodgdon H335 | <<locked>> | 90% | 42,453 psi | 89% | 2533 fps | 97.6% |
| Hodgdon H4198 | <<locked>> | 82% | 42,351 psi | 88% | 2415 fps | 98.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,024 psi | 67% | 1555 fps | 100% |
| IMR 3031 | <<locked>> | 98% | 41,930 psi | 88% | 2582 fps | 99.1% |
| IMR 4198 | <<locked>> | 88% | 42,496 psi | 89% | 2457 fps | 100% |
| Lovex D073.4 | <<locked>> | 84% | 40,988 psi | 86% | 2487 fps | 96.3% |
| Lovex D073.5 | <<locked>> | 92% | 43,279 psi | 90% | 2523 fps | 96.2% |
| Lovex D073.6 | <<locked>> | 98% | 40,843 psi | 85% | 2536 fps | 96.6% |
| Norma 200 | <<locked>> | 86% | 43,265 psi | 90% | 2497 fps | 100% |
| Norma 202 | <<locked>> | 98% | 42,583 psi | 89% | 2536 fps | 97.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,053 psi | 67% | 1594 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 90% | 41,872 psi | 87% | 2493 fps | 96.4% |
| Rottweil R 901 | <<locked>> | 94% | 41,727 psi | 87% | 2484 fps | 97.2% |
| Shooters World AR Plus | <<locked>> | 84% | 40,988 psi | 86% | 2487 fps | 96.3% |
| Shooters World Match Rifle | <<locked>> | 98% | 40,843 psi | 85% | 2536 fps | 96.6% |
| SNPE Vectan BA6 1/2 | <<locked>> | 82% | 43,192 psi | 90% | 2231 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 86% | 40,828 psi | 85% | 2493 fps | 97.1% |
| SNPE Vectan SP 3 | <<locked>> | 88% | 41,249 psi | 86% | 2474 fps | 98.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 94% | 41,220 psi | 86% | 2418 fps | 97.1% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 39,421 psi | 82% | 2402 fps | 97.8% |
| Somchem S335 | <<locked>> | 96% | 42,235 psi | 88% | 2461 fps | 98.3% |
| Vihtavuori N120 | <<locked>> | 84% | 42,815 psi | 89% | 2421 fps | 100% |
| Vihtavuori N130 | <<locked>> | 90% | 41,162 psi | 86% | 2425 fps | 99.7% |
| Vihtavuori N133 | <<locked>> | 96% | 42,946 psi | 90% | 2467 fps | 99.5% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 40,234 psi | 84% | 2510 fps | 99.4% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 43,163 psi | 90% | 2520 fps | 98.1% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 41,437 psi | 87% | 2507 fps | 97.2% |
| Winchester 748 | <<locked>> | 96% | 42,656 psi | 89% | 2562 fps | 95.9% |
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% | 27,412 psi | 57% | 2175 fps | 95.9% |
| Accurate 2460 | <<locked>> | 86% | 35,418 psi | 74% | 2379 fps | 95.5% |
| Accurate 2495 | <<locked>> | 86% | 24,424 psi | 51% | 2178 fps | 95.1% |
| Accurate 2520 | <<locked>> | 92% | 37,666 psi | 79% | 2464 fps | 95.7% |
| Accurate 4064 | <<locked>> | 96% | 31,836 psi | 67% | 2375 fps | 95.3% |
| Accurate LT-30 | <<locked>> | 80% | 36,216 psi | 76% | 2287 fps | 97.2% |
| Accurate LT-32 | <<locked>> | 80% | 36,608 psi | 76% | 2290 fps | 95.1% |
| ADI AR 2207 | <<locked>> | 80% | 37,797 psi | 79% | 2382 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 33,286 psi | 70% | 2343 fps | 96.1% |
| Alliant AR-Comp | 29.5 gr | 80% | 25,193 psi | 53% | 2182 fps | 97.4% |
| Alliant Reloder-10x | <<locked>> | 80% | 31,749 psi | 66% | 2290 fps | 98.5% |
| Alliant Reloder-7 | <<locked>> | 80% | 39,218 psi | 82% | 2382 fps | 99.8% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 34,127 psi | 71% | 2270 fps | 96.9% |
| Hodgdon H322 | 30.5 gr | 80% | 30,632 psi | 64% | 2277 fps | 95% |
| Hodgdon H335 | <<locked>> | 84% | 34,925 psi | 73% | 2385 fps | 95.5% |
| Hodgdon H4198 | <<locked>> | 80% | 39,958 psi | 83% | 2369 fps | 97.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,786 psi | 50% | 1391 fps | 100% |
| IMR 3031 | 31.7 gr | 86% | 29,051 psi | 61% | 2293 fps | 95.3% |
| IMR 4198 | <<locked>> | 80% | 33,504 psi | 70% | 2283 fps | 99.4% |
| Lovex D073.4 | <<locked>> | 82% | 38,276 psi | 80% | 2434 fps | 95.6% |
| Lovex D073.5 | <<locked>> | 90% | 40,451 psi | 85% | 2474 fps | 95.5% |
| Lovex D073.6 | <<locked>> | 94% | 35,563 psi | 74% | 2434 fps | 95% |
| Norma 200 | <<locked>> | 80% | 35,694 psi | 75% | 2359 fps | 99.6% |
| Norma 202 | <<locked>> | 90% | 33,127 psi | 69% | 2349 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,670 psi | 49% | 1427 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 88% | 39,160 psi | 82% | 2444 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 88% | 35,172 psi | 73% | 2352 fps | 95.4% |
| Shooters World AR Plus | <<locked>> | 82% | 38,276 psi | 80% | 2434 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 94% | 35,563 psi | 74% | 2434 fps | 95% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 41,017 psi | 86% | 2201 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 35,839 psi | 75% | 2395 fps | 95.7% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 32,126 psi | 67% | 2287 fps | 96.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 34,185 psi | 71% | 2280 fps | 95.1% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 31,241 psi | 65% | 2234 fps | 95.2% |
| Somchem S335 | <<locked>> | 86% | 31,270 psi | 65% | 2241 fps | 95.2% |
| Vihtavuori N120 | <<locked>> | 80% | 37,971 psi | 79% | 2346 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 30,458 psi | 64% | 2208 fps | 97.8% |
| Vihtavuori N133 | <<locked>> | 80% | 26,498 psi | 55% | 2119 fps | 95.1% |
| Vihtavuori N135 | <<locked>> | 86% | 26,324 psi | 55% | 2195 fps | 95.5% |
| Vihtavuori N140 | <<locked>> | 92% | 33,765 psi | 71% | 2339 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 94% | 34,403 psi | 72% | 2369 fps | 95.1% |
| Winchester 748 | <<locked>> | 94% | 39,972 psi | 84% | 2513 fps | 95.1% |
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 | TWENTY-NINE Ball Tip. IMR 3031 delivers the highest muzzle velocity at 2,582 fps; across all powders the maximum-charge window runs from 1,555 fps to 2,582 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 1:13.0 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. Alliant AR-Comp, IMR 3031, Hodgdon H322 rank at the top here: for .308 Marlin Express with the .308 | 150gr | TWENTY-NINE Ball 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.