Load Specifications
Load data in caliber .308 Marlin Express with .308 | 150gr | Barnes RRLP bullet and 34 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon H322, Alliant Reloder-10x and ADI AR 2219.
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>> | 82% | 42,482 psi | 89% | 2375 fps | 99.7% |
| Accurate 2015 | <<locked>> | 96% | 41,655 psi | 87% | 2444 fps | 99.1% |
| Accurate 2460 | <<locked>> | 94% | 42,656 psi | 89% | 2480 fps | 96.8% |
| Accurate 2495ᴾ | <<locked>> | 100% | 35,027 psi | 73% | 2405 fps | 98.4% |
| Accurate 2520 | <<locked>> | 98% | 42,409 psi | 89% | 2516 fps | 96.4% |
| Accurate LT-30 | <<locked>> | 86% | 40,973 psi | 86% | 2339 fps | 97.8% |
| Accurate LT-32 | <<locked>> | 86% | 41,423 psi | 87% | 2343 fps | 95.9% |
| ADI AR 2207 | <<locked>> | 86% | 42,482 psi | 89% | 2431 fps | 100% |
| ADI AR 2219 | <<locked>> | 90% | 43,207 psi | 90% | 2503 fps | 98.1% |
| Alliant AR-Comp | <<locked>> | 98% | 40,727 psi | 85% | 2510 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 92% | 42,598 psi | 89% | 2474 fps | 99.8% |
| Alliant Reloder-7 | <<locked>> | 84% | 41,539 psi | 87% | 2392 fps | 99.8% |
| Baschieri & Pellagri 106 | <<locked>> | 88% | 41,336 psi | 86% | 2372 fps | 98.1% |
| Hodgdon H322 | <<locked>> | 92% | 41,655 psi | 87% | 2477 fps | 97.8% |
| Hodgdon H335 | <<locked>> | 92% | 42,380 psi | 89% | 2493 fps | 97% |
| Hodgdon H4198 | <<locked>> | 84% | 42,525 psi | 89% | 2379 fps | 97.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 31,720 psi | 66% | 1522 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 41,336 psi | 86% | 2533 fps | 98.6% |
| IMR 4198 | <<locked>> | 90% | 42,206 psi | 88% | 2418 fps | 100% |
| Norma 200 | <<locked>> | 88% | 42,583 psi | 89% | 2457 fps | 100% |
| Norma 202ᴾ | <<locked>> | 100% | 41,974 psi | 88% | 2493 fps | 97% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 31,415 psi | 66% | 1555 fps | 100% |
| Rottweil R 901 | <<locked>> | 96% | 41,408 psi | 87% | 2441 fps | 96.6% |
| SNPE Vectan BA6 1/2 | <<locked>> | 84% | 43,308 psi | 90% | 2208 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 90% | 43,308 psi | 90% | 2503 fps | 97.1% |
| SNPE Vectan SP 3 | <<locked>> | 90% | 40,988 psi | 86% | 2434 fps | 98.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 96% | 40,843 psi | 85% | 2372 fps | 96.4% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 37,072 psi | 77% | 2320 fps | 96.5% |
| Somchem S335 | <<locked>> | 98% | 41,626 psi | 87% | 2415 fps | 97.6% |
| Vihtavuori N120 | <<locked>> | 86% | 42,612 psi | 89% | 2392 fps | 100% |
| Vihtavuori N130 | <<locked>> | 92% | 41,133 psi | 86% | 2392 fps | 99.5% |
| Vihtavuori N133 | <<locked>> | 98% | 42,554 psi | 89% | 2425 fps | 99.1% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 37,391 psi | 78% | 2425 fps | 98.6% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 40,045 psi | 84% | 2428 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 1680 | <<locked>> | 80% | 39,595 psi | 83% | 2326 fps | 99.4% |
| Accurate 2015 | <<locked>> | 82% | 26,890 psi | 56% | 2136 fps | 95% |
| Accurate 2460 | <<locked>> | 90% | 37,260 psi | 78% | 2382 fps | 95.4% |
| Accurate 2495 | <<locked>> | 92% | 26,789 psi | 56% | 2221 fps | 95.7% |
| Accurate 2520 | <<locked>> | 96% | 39,436 psi | 82% | 2464 fps | 95.6% |
| Accurate LT-30 | <<locked>> | 80% | 34,040 psi | 71% | 2205 fps | 95.9% |
| Accurate LT-32 | <<locked>> | 84% | 38,943 psi | 81% | 2297 fps | 95.2% |
| ADI AR 2207 | <<locked>> | 80% | 35,288 psi | 74% | 2306 fps | 100% |
| ADI AR 2219 | 30.1 gr | 82% | 33,098 psi | 69% | 2303 fps | 95.3% |
| Alliant AR-Comp | <<locked>> | 80% | 23,424 psi | 49% | 2093 fps | 95.7% |
| Alliant Reloder-10x | 26.9 gr | 80% | 29,530 psi | 62% | 2211 fps | 97.4% |
| Alliant Reloder-7 | <<locked>> | 80% | 36,651 psi | 77% | 2303 fps | 99.3% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 31,937 psi | 67% | 2188 fps | 95.6% |
| Hodgdon H322 | 29.9 gr | 84% | 32,503 psi | 68% | 2290 fps | 95.1% |
| Hodgdon H335 | <<locked>> | 88% | 37,217 psi | 78% | 2395 fps | 95.5% |
| Hodgdon H4198 | <<locked>> | 80% | 37,550 psi | 78% | 2287 fps | 96.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,322 psi | 49% | 1358 fps | 100% |
| IMR 3031 | <<locked>> | 90% | 30,560 psi | 64% | 2300 fps | 95.2% |
| IMR 4198 | <<locked>> | 80% | 31,633 psi | 66% | 2208 fps | 98.7% |
| Norma 200 | <<locked>> | 80% | 33,388 psi | 70% | 2283 fps | 99% |
| Norma 202 | <<locked>> | 96% | 37,072 psi | 77% | 2402 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,206 psi | 48% | 1391 fps | 100% |
| Rottweil R 901 | <<locked>> | 92% | 36,666 psi | 77% | 2352 fps | 95.2% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 39,189 psi | 82% | 2149 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 86% | 38,014 psi | 79% | 2408 fps | 95.8% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 30,095 psi | 63% | 2205 fps | 95.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 92% | 36,245 psi | 76% | 2287 fps | 95.1% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 32,779 psi | 68% | 2231 fps | 95.1% |
| Somchem S335 | <<locked>> | 90% | 32,706 psi | 68% | 2244 fps | 95.1% |
| Vihtavuori N120 | <<locked>> | 80% | 35,491 psi | 74% | 2274 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 28,471 psi | 59% | 2133 fps | 96.6% |
| Vihtavuori N133 | <<locked>> | 84% | 28,137 psi | 59% | 2129 fps | 95.2% |
| Vihtavuori N135 | <<locked>> | 90% | 27,572 psi | 58% | 2198 fps | 95.4% |
| Vihtavuori N140 | <<locked>> | 96% | 35,447 psi | 74% | 2339 fps | 95.4% |
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 34 powders for .308 Marlin Express loaded with the .308 | 150gr | Barnes RRLP. IMR 3031 delivers the highest muzzle velocity at 2,533 fps; across all powders the maximum-charge window runs from 1,522 fps to 2,533 fps. Accurate 2495 gives the best case fill at 100 %, and 34 of the 34 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (330 MPa), the top charges use 66–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.308" calls for a 1:11.0 twist; slower twists will usually not stabilise this weight. Accurate 2495, Hodgdon TrailBoss, IMR 3031 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. Hodgdon H322, Alliant Reloder-10x, ADI AR 2219 rank at the top here: for .308 Marlin Express with the .308 | 150gr | Barnes RRLP 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.