Load Specifications
Load data in caliber .308 Marlin Express with .308 | 155gr | Atomic 29 HP bullet and 43 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Accurate 2520, Alliant AR-Comp and Hodgdon H335.
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% | 41,017 psi | 86% | 2425 fps | 99.5% |
| Accurate 2460 | <<locked>> | 92% | 42,134 psi | 88% | 2464 fps | 97.5% |
| Accurate 2495ᴾ | <<locked>> | 100% | 36,999 psi | 77% | 2431 fps | 99.2% |
| Accurate 2520 | <<locked>> | 96% | 41,930 psi | 88% | 2500 fps | 97.1% |
| Accurate 4064ᴾ | <<locked>> | 100% | 34,490 psi | 72% | 2395 fps | 96.5% |
| Accurate LT-30 | <<locked>> | 86% | 42,279 psi | 88% | 2356 fps | 98.7% |
| Accurate LT-32 | <<locked>> | 86% | 42,743 psi | 89% | 2362 fps | 97.1% |
| ADI AR 2207 | <<locked>> | 84% | 41,495 psi | 87% | 2398 fps | 100% |
| ADI AR 2219 | <<locked>> | 88% | 42,163 psi | 88% | 2477 fps | 98.6% |
| Alliant AR-Comp | <<locked>> | 98% | 43,018 psi | 90% | 2536 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 90% | 41,771 psi | 87% | 2448 fps | 99.9% |
| Alliant Reloder-7 | <<locked>> | 84% | 43,279 psi | 90% | 2408 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 88% | 42,989 psi | 90% | 2392 fps | 99% |
| Hodgdon BL-C2 | <<locked>> | 98% | 42,714 psi | 89% | 2526 fps | 96% |
| Hodgdon H322 | <<locked>> | 90% | 41,046 psi | 86% | 2457 fps | 98.4% |
| Hodgdon H335 | <<locked>> | 90% | 41,553 psi | 87% | 2470 fps | 97.6% |
| Hodgdon H4198 | <<locked>> | 82% | 41,452 psi | 87% | 2352 fps | 98.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 31,778 psi | 66% | 1519 fps | 100% |
| IMR 3031 | <<locked>> | 98% | 40,596 psi | 85% | 2513 fps | 99% |
| IMR 4198 | <<locked>> | 88% | 41,568 psi | 87% | 2395 fps | 100% |
| Lovex D073.4 | <<locked>> | 86% | 42,656 psi | 89% | 2470 fps | 97% |
| Lovex D073.5 | <<locked>> | 92% | 41,814 psi | 87% | 2454 fps | 96.1% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 42,134 psi | 88% | 2513 fps | 97.1% |
| Norma 200 | <<locked>> | 86% | 41,568 psi | 87% | 2428 fps | 100% |
| Norma 202 | <<locked>> | 98% | 41,611 psi | 87% | 2477 fps | 97.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 31,415 psi | 66% | 1552 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 90% | 40,843 psi | 85% | 2431 fps | 96.3% |
| Rottweil R 901 | <<locked>> | 96% | 42,569 psi | 89% | 2457 fps | 97.6% |
| Shooters World AR Plus | <<locked>> | 86% | 42,656 psi | 89% | 2470 fps | 97% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 42,134 psi | 88% | 2513 fps | 97.1% |
| SNPE Vectan BA6 1/2 | <<locked>> | 82% | 42,511 psi | 89% | 2178 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 88% | 42,612 psi | 89% | 2484 fps | 97.7% |
| SNPE Vectan SP 3 | <<locked>> | 90% | 42,946 psi | 90% | 2457 fps | 99.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 96% | 42,641 psi | 89% | 2398 fps | 97.6% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 38,537 psi | 81% | 2346 fps | 97.8% |
| Somchem S335 | <<locked>> | 96% | 41,104 psi | 86% | 2398 fps | 98.2% |
| Vihtavuori N120 | <<locked>> | 84% | 41,727 psi | 87% | 2359 fps | 100% |
| Vihtavuori N130 | <<locked>> | 92% | 42,772 psi | 89% | 2408 fps | 99.9% |
| Vihtavuori N133 | <<locked>> | 96% | 41,916 psi | 88% | 2405 fps | 99.5% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 39,189 psi | 82% | 2444 fps | 99.4% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 41,945 psi | 88% | 2457 fps | 98% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 40,350 psi | 84% | 2444 fps | 97.1% |
| Winchester 748 | <<locked>> | 96% | 41,611 psi | 87% | 2497 fps | 95.8% |
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 2015 | <<locked>> | 80% | 26,107 psi | 55% | 2110 fps | 95.6% |
| Accurate 2460 | <<locked>> | 86% | 34,026 psi | 71% | 2310 fps | 95.3% |
| Accurate 2495 | <<locked>> | 88% | 24,540 psi | 51% | 2152 fps | 95.5% |
| Accurate 2520 | 36 gr | 92% | 36,260 psi | 76% | 2395 fps | 95.6% |
| Accurate 4064 | <<locked>> | 96% | 30,371 psi | 63% | 2303 fps | 95% |
| Accurate LT-30 | <<locked>> | 80% | 35,259 psi | 74% | 2224 fps | 97.1% |
| Accurate LT-32 | <<locked>> | 80% | 35,650 psi | 74% | 2228 fps | 95.1% |
| ADI AR 2207 | <<locked>> | 80% | 36,883 psi | 77% | 2320 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 32,372 psi | 68% | 2280 fps | 96% |
| Alliant AR-Comp | 28.7 gr | 80% | 24,120 psi | 50% | 2113 fps | 97.2% |
| Alliant Reloder-10x | <<locked>> | 80% | 30,443 psi | 64% | 2224 fps | 98.3% |
| Alliant Reloder-7 | <<locked>> | 80% | 37,971 psi | 79% | 2320 fps | 99.8% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 33,402 psi | 70% | 2215 fps | 96.9% |
| Hodgdon BL-C2 | <<locked>> | 96% | 40,161 psi | 84% | 2480 fps | 95.2% |
| Hodgdon H322 | <<locked>> | 82% | 31,517 psi | 66% | 2260 fps | 95.7% |
| Hodgdon H335 | 33.3 gr | 84% | 33,852 psi | 71% | 2320 fps | 95.3% |
| Hodgdon H4198 | <<locked>> | 80% | 38,972 psi | 81% | 2306 fps | 97.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,308 psi | 49% | 1355 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 27,833 psi | 58% | 2224 fps | 95% |
| IMR 4198 | <<locked>> | 80% | 32,692 psi | 68% | 2224 fps | 99.4% |
| Lovex D073.4 | <<locked>> | 82% | 36,898 psi | 77% | 2365 fps | 95.4% |
| Lovex D073.5 | <<locked>> | 90% | 38,943 psi | 81% | 2405 fps | 95.3% |
| Lovex D073.6 | <<locked>> | 96% | 36,695 psi | 77% | 2415 fps | 95.7% |
| Norma 200 | <<locked>> | 80% | 34,185 psi | 71% | 2290 fps | 99.5% |
| Norma 202 | <<locked>> | 92% | 34,258 psi | 72% | 2336 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,148 psi | 48% | 1388 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 88% | 38,116 psi | 80% | 2382 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 88% | 33,489 psi | 70% | 2280 fps | 95.1% |
| Shooters World AR Plus | <<locked>> | 82% | 36,898 psi | 77% | 2365 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 96% | 36,695 psi | 77% | 2415 fps | 95.7% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 40,321 psi | 84% | 2149 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 34,664 psi | 72% | 2329 fps | 95.6% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 31,328 psi | 65% | 2228 fps | 96.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 33,243 psi | 69% | 2221 fps | 95% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 30,182 psi | 63% | 2172 fps | 95.1% |
| Somchem S335 | <<locked>> | 86% | 29,994 psi | 63% | 2175 fps | 95% |
| Vihtavuori N120 | <<locked>> | 80% | 37,072 psi | 77% | 2287 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 29,544 psi | 62% | 2152 fps | 97.8% |
| Vihtavuori N133 | <<locked>> | 80% | 25,672 psi | 54% | 2064 fps | 95% |
| Vihtavuori N135 | <<locked>> | 86% | 25,266 psi | 53% | 2133 fps | 95.2% |
| Vihtavuori N140 | <<locked>> | 92% | 32,721 psi | 68% | 2277 fps | 95.4% |
| Vihtavuori N540 | <<locked>> | 96% | 35,505 psi | 74% | 2352 fps | 95.7% |
| Winchester 748 | <<locked>> | 94% | 38,899 psi | 81% | 2448 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 43 powders for .308 Marlin Express loaded with the .308 | 155gr | Atomic 29 HP. Alliant AR-Comp delivers the highest muzzle velocity at 2,536 fps; across all powders the maximum-charge window runs from 1,519 fps to 2,536 fps. Accurate 2495 gives the best case fill at 100 %, and 43 of the 43 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 155.0 gr projectile in 0.308" calls for a 1:12.5 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. Accurate 2520, Alliant AR-Comp, Hodgdon H335 rank at the top here: for .308 Marlin Express with the .308 | 155gr | Atomic 29 HP 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.