Load Specifications
Load data in caliber .308 Marlin Express with .308 | 130gr | Barnes TTSX BT bullet and 30 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-10x, Norma 200 and ADI AR 2207.
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>> | 84% | 42,395 psi | 89% | 2589 fps | 99.2% |
| Accurate 2015 | <<locked>> | 98% | 40,582 psi | 85% | 2644 fps | 98.2% |
| Accurate 2495ᴾ | <<locked>> | 100% | 31,198 psi | 65% | 2533 fps | 96.2% |
| Accurate LT-30 | <<locked>> | 90% | 43,294 psi | 90% | 2592 fps | 97.3% |
| ADI AR 2207 | <<locked>> | 88% | 41,814 psi | 87% | 2651 fps | 100% |
| ADI AR 2219 | <<locked>> | 92% | 42,902 psi | 90% | 2717 fps | 97.1% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 40,321 psi | 84% | 2723 fps | 99.8% |
| Alliant Reloder-10x | <<locked>> | 94% | 41,800 psi | 87% | 2687 fps | 99.3% |
| Alliant Reloder-7 | <<locked>> | 86% | 41,162 psi | 86% | 2608 fps | 99.4% |
| Baschieri & Pellagri 106 | <<locked>> | 90% | 41,191 psi | 86% | 2579 fps | 97.2% |
| Hodgdon H322 | <<locked>> | 94% | 41,437 psi | 87% | 2690 fps | 96.7% |
| Hodgdon H4198 | <<locked>> | 86% | 42,337 psi | 88% | 2589 fps | 96.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 30,792 psi | 64% | 1663 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 38,101 psi | 80% | 2684 fps | 96.7% |
| IMR 4198 | <<locked>> | 92% | 41,887 psi | 88% | 2635 fps | 99.7% |
| IMR 4227 | <<locked>> | 82% | 42,844 psi | 90% | 2585 fps | 100% |
| Lovex S053 | <<locked>> | 82% | 41,640 psi | 87% | 2543 fps | 100% |
| Norma 200 | <<locked>> | 90% | 41,553 psi | 87% | 2667 fps | 99.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 30,603 psi | 64% | 1706 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 82% | 42,018 psi | 88% | 2612 fps | 100% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 42,554 psi | 89% | 2680 fps | 95.7% |
| SNPE Vectan BA6 1/2 | <<locked>> | 86% | 42,960 psi | 90% | 2425 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 92% | 43,134 psi | 90% | 2720 fps | 96% |
| SNPE Vectan SP 3 | <<locked>> | 94% | 43,163 psi | 90% | 2694 fps | 98% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 42,844 psi | 90% | 2618 fps | 95.7% |
| Somchem S335ᴾ | <<locked>> | 100% | 41,075 psi | 86% | 2618 fps | 96.5% |
| Vihtavuori N120 | <<locked>> | 88% | 42,018 psi | 88% | 2612 fps | 100% |
| Vihtavuori N130 | <<locked>> | 96% | 43,004 psi | 90% | 2641 fps | 99.2% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 41,887 psi | 88% | 2628 fps | 98.3% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 34,026 psi | 71% | 2562 fps | 96.7% |
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 1680 | <<locked>> | 80% | 37,028 psi | 77% | 2487 fps | 98.2% |
| Accurate 2015 | <<locked>> | 90% | 31,459 psi | 66% | 2451 fps | 95.7% |
| Accurate 2495 | <<locked>> | 98% | 28,950 psi | 60% | 2477 fps | 95.3% |
| Accurate LT-30 | <<locked>> | 84% | 36,042 psi | 75% | 2448 fps | 95.4% |
| ADI AR 2207 | 28.7 gr | 80% | 32,576 psi | 68% | 2467 fps | 99.8% |
| ADI AR 2219 | <<locked>> | 88% | 37,449 psi | 78% | 2605 fps | 95.5% |
| Alliant AR-Comp | <<locked>> | 86% | 25,889 psi | 54% | 2359 fps | 95.6% |
| Alliant Reloder-10x | 28.9 gr | 80% | 26,687 psi | 56% | 2339 fps | 95% |
| Alliant Reloder-7 | <<locked>> | 80% | 34,113 psi | 71% | 2464 fps | 98.1% |
| Baschieri & Pellagri 106 | <<locked>> | 84% | 33,808 psi | 71% | 2428 fps | 95% |
| Hodgdon H322 | <<locked>> | 90% | 36,506 psi | 76% | 2585 fps | 95.2% |
| Hodgdon H4198 | <<locked>> | 82% | 37,594 psi | 79% | 2493 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 22,423 psi | 47% | 1486 fps | 100% |
| IMR 3031 | <<locked>> | 96% | 33,823 psi | 71% | 2582 fps | 95.1% |
| IMR 4198 | <<locked>> | 80% | 29,530 psi | 62% | 2356 fps | 97% |
| IMR 4227 | <<locked>> | 80% | 40,277 psi | 84% | 2539 fps | 99.9% |
| Lovex S053 | <<locked>> | 80% | 39,175 psi | 82% | 2500 fps | 100% |
| Norma 200 | 30 gr | 80% | 30,139 psi | 63% | 2421 fps | 97.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 22,133 psi | 46% | 1519 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 39,247 psi | 82% | 2559 fps | 99.8% |
| Rottweil R 901 | <<locked>> | 98% | 40,118 psi | 84% | 2635 fps | 95% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 36,738 psi | 77% | 2323 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 90% | 40,393 psi | 84% | 2664 fps | 95.2% |
| SNPE Vectan SP 3 | <<locked>> | 86% | 33,678 psi | 70% | 2493 fps | 95.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 98% | 40,335 psi | 84% | 2572 fps | 95.1% |
| Somchem S335 | <<locked>> | 96% | 36,245 psi | 76% | 2523 fps | 95% |
| Vihtavuori N120 | <<locked>> | 80% | 32,808 psi | 69% | 2438 fps | 100% |
| Vihtavuori N130 | <<locked>> | 82% | 27,760 psi | 58% | 2310 fps | 95.1% |
| Vihtavuori N133 | <<locked>> | 90% | 30,937 psi | 65% | 2395 fps | 95% |
| Vihtavuori N135 | <<locked>> | 96% | 30,182 psi | 63% | 2464 fps | 95.2% |
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 30 powders for .308 Marlin Express loaded with the .308 | 130gr | Barnes TTSX BT. Alliant AR-Comp delivers the highest muzzle velocity at 2,723 fps; across all powders the maximum-charge window runs from 1,663 fps to 2,723 fps. Accurate 2495 gives the best case fill at 100 %, and 30 of the 30 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (330 MPa), the top charges use 64–90 %, leaving at least 10 % headroom. The 130.0 gr projectile in 0.308" calls for a 1:12.5 twist; slower twists will usually not stabilise this weight. Accurate 2495, Alliant AR-Comp, 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 Reloder-10x, Norma 200, ADI AR 2207 rank at the top here: for .308 Marlin Express with the .308 | 130gr | Barnes TTSX BT 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.