Load Specifications
Load data in caliber .308 Marlin Express with .308 | 142gr | IBEX TRD bullet and 33 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.
A valid access license is required to use the Personalized Load Calculator.
You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 94% | 43,105 psi | 90% | 2536 fps | 99.1% |
| Accurate 2460 | <<locked>> | 90% | 41,655 psi | 87% | 2526 fps | 96.2% |
| Accurate 2495ᴾ | <<locked>> | 100% | 40,524 psi | 85% | 2566 fps | 99.1% |
| Accurate 4064ᴾ | <<locked>> | 100% | 37,826 psi | 79% | 2526 fps | 96.2% |
| Accurate LT-30 | <<locked>> | 84% | 41,220 psi | 86% | 2411 fps | 97.6% |
| Accurate LT-32 | <<locked>> | 84% | 41,582 psi | 87% | 2415 fps | 95.6% |
| ADI AR 2207 | <<locked>> | 82% | 40,915 psi | 85% | 2474 fps | 100% |
| ADI AR 2219 | <<locked>> | 86% | 41,046 psi | 86% | 2536 fps | 97.4% |
| Alliant AR-Comp | <<locked>> | 96% | 41,916 psi | 88% | 2602 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 88% | 41,292 psi | 86% | 2516 fps | 99.5% |
| Alliant Reloder-7 | <<locked>> | 82% | 42,569 psi | 89% | 2477 fps | 99.8% |
| Baschieri & Pellagri 106 | <<locked>> | 86% | 41,814 psi | 87% | 2451 fps | 98% |
| Hodgdon H322 | <<locked>> | 90% | 42,366 psi | 89% | 2562 fps | 97.7% |
| Hodgdon H335 | <<locked>> | 90% | 43,236 psi | 90% | 2582 fps | 96.9% |
| Hodgdon H4198 | <<locked>> | 82% | 42,743 psi | 89% | 2454 fps | 97.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,590 psi | 68% | 1591 fps | 100% |
| IMR 3031 | <<locked>> | 98% | 42,380 psi | 89% | 2621 fps | 98.5% |
| IMR 4198 | <<locked>> | 88% | 42,815 psi | 89% | 2500 fps | 99.9% |
| Norma 200 | <<locked>> | 84% | 42,148 psi | 88% | 2510 fps | 99.9% |
| Norma 202 | <<locked>> | 96% | 40,712 psi | 85% | 2536 fps | 96.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,764 psi | 68% | 1634 fps | 100% |
| Rottweil R 901 | <<locked>> | 92% | 41,307 psi | 86% | 2500 fps | 96.2% |
| SNPE Vectan SP 10 | <<locked>> | 86% | 41,669 psi | 87% | 2543 fps | 96.4% |
| SNPE Vectan SP 3 | <<locked>> | 88% | 41,800 psi | 87% | 2516 fps | 98.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 94% | 41,843 psi | 87% | 2457 fps | 96.4% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 40,321 psi | 84% | 2448 fps | 97.1% |
| Somchem S335 | <<locked>> | 96% | 42,975 psi | 90% | 2507 fps | 97.6% |
| Vihtavuori N120 | <<locked>> | 82% | 41,031 psi | 86% | 2434 fps | 100% |
| Vihtavuori N130 | <<locked>> | 90% | 41,974 psi | 88% | 2474 fps | 99.4% |
| Vihtavuori N133 | <<locked>> | 96% | 43,221 psi | 90% | 2507 fps | 99% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 41,133 psi | 86% | 2559 fps | 99% |
| Vihtavuori N140 | <<locked>> | 98% | 41,278 psi | 86% | 2520 fps | 96.8% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 42,076 psi | 88% | 2549 fps | 96.4% |
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% | 28,993 psi | 61% | 2234 fps | 95.5% |
| Accurate 2460 | <<locked>> | 88% | 39,407 psi | 82% | 2480 fps | 95.6% |
| Accurate 2495 | <<locked>> | 86% | 26,789 psi | 56% | 2254 fps | 95.1% |
| Accurate 4064 | <<locked>> | 98% | 35,737 psi | 75% | 2484 fps | 95.6% |
| Accurate LT-30 | <<locked>> | 80% | 36,912 psi | 77% | 2326 fps | 96.5% |
| Accurate LT-32 | <<locked>> | 82% | 39,392 psi | 82% | 2372 fps | 95% |
| ADI AR 2207 | <<locked>> | 80% | 38,682 psi | 81% | 2431 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 34,214 psi | 71% | 2388 fps | 95.3% |
| Alliant AR-Comp | 29 gr | 80% | 26,542 psi | 55% | 2234 fps | 97% |
| Alliant Reloder-10x | <<locked>> | 80% | 32,967 psi | 69% | 2343 fps | 98.1% |
| Alliant Reloder-7 | <<locked>> | 80% | 40,277 psi | 84% | 2434 fps | 99.6% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 34,940 psi | 73% | 2313 fps | 96.3% |
| Hodgdon H322 | 30.7 gr | 82% | 33,504 psi | 70% | 2372 fps | 95% |
| Hodgdon H335 | <<locked>> | 86% | 38,174 psi | 80% | 2480 fps | 95.5% |
| Hodgdon H4198 | <<locked>> | 80% | 40,422 psi | 84% | 2408 fps | 96.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,337 psi | 51% | 1421 fps | 100% |
| IMR 3031 | 31.9 gr | 88% | 31,937 psi | 67% | 2388 fps | 95.4% |
| IMR 4198 | <<locked>> | 80% | 34,403 psi | 72% | 2333 fps | 99% |
| Norma 200 | <<locked>> | 80% | 37,724 psi | 79% | 2425 fps | 99.5% |
| Norma 202 | <<locked>> | 92% | 36,158 psi | 76% | 2444 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,337 psi | 51% | 1457 fps | 100% |
| Rottweil R 901 | <<locked>> | 90% | 39,247 psi | 82% | 2457 fps | 95.6% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 36,811 psi | 77% | 2444 fps | 95% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 33,243 psi | 69% | 2336 fps | 96.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 37,347 psi | 78% | 2372 fps | 95.1% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 33,924 psi | 71% | 2316 fps | 95.1% |
| Somchem S335 | <<locked>> | 88% | 34,548 psi | 72% | 2336 fps | 95.3% |
| Vihtavuori N120 | <<locked>> | 80% | 38,725 psi | 81% | 2395 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 31,879 psi | 67% | 2264 fps | 97.5% |
| Vihtavuori N133 | <<locked>> | 82% | 29,457 psi | 62% | 2215 fps | 95.4% |
| Vihtavuori N135 | <<locked>> | 86% | 27,760 psi | 58% | 2251 fps | 95% |
| Vihtavuori N140 | <<locked>> | 94% | 36,738 psi | 77% | 2428 fps | 95.4% |
| Vihtavuori N540 | <<locked>> | 96% | 37,492 psi | 78% | 2461 fps | 95% |
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 33 powders for .308 Marlin Express loaded with the .308 | 142gr | IBEX TRD. IMR 3031 delivers the highest muzzle velocity at 2,621 fps; across all powders the maximum-charge window runs from 1,591 fps to 2,621 fps. Accurate 2495 gives the best case fill at 100 %, and 33 of the 33 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 142.0 gr projectile in 0.308" calls for a 1:12.0 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 | 142gr | IBEX TRD 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.