Load Specifications
Load data in caliber .308 Marlin Express with .308 | 175gr | Atomic 29 HP bullet and 52 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are IMR 3031, Winchester 748 and Accurate 2520.
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% | 42,917 psi | 90% | 2280 fps | 99.9% |
| Accurate 2460 | <<locked>> | 90% | 41,118 psi | 86% | 2277 fps | 98.2% |
| Accurate 2495ᴾ | <<locked>> | 100% | 39,508 psi | 83% | 2303 fps | 99.9% |
| Accurate 2520 | <<locked>> | 94% | 41,031 psi | 86% | 2316 fps | 97.8% |
| Accurate 4064ᴾ | <<locked>> | 100% | 36,811 psi | 77% | 2274 fps | 98.1% |
| Accurate LT-30 | <<locked>> | 84% | 41,553 psi | 87% | 2178 fps | 99.2% |
| Accurate LT-32 | <<locked>> | 84% | 42,003 psi | 88% | 2185 fps | 97.8% |
| ADI AR 2207 | <<locked>> | 82% | 41,002 psi | 86% | 2215 fps | 100% |
| ADI AR 2219 | <<locked>> | 86% | 41,220 psi | 86% | 2290 fps | 99.1% |
| ADI Benchmark 8208 | <<locked>> | 94% | 42,337 psi | 88% | 2290 fps | 96.2% |
| Alliant AR-Comp | <<locked>> | 96% | 42,134 psi | 88% | 2343 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 88% | 41,162 psi | 86% | 2264 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 82% | 42,235 psi | 88% | 2221 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 86% | 42,018 psi | 88% | 2211 fps | 99.4% |
| Hodgdon Benchmark | <<locked>> | 92% | 42,772 psi | 89% | 2254 fps | 96.9% |
| Hodgdon BL-C2 | <<locked>> | 96% | 41,916 psi | 88% | 2346 fps | 96.9% |
| Hodgdon H322 | <<locked>> | 90% | 42,815 psi | 89% | 2316 fps | 99.3% |
| Hodgdon H335 | <<locked>> | 88% | 40,466 psi | 85% | 2287 fps | 98.2% |
| Hodgdon H4198 | <<locked>> | 82% | 43,120 psi | 90% | 2215 fps | 99% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,285 psi | 67% | 1407 fps | 100% |
| IMR 3031 | <<locked>> | 98% | 42,902 psi | 90% | 2379 fps | 99.8% |
| IMR 4198 | <<locked>> | 86% | 40,640 psi | 85% | 2205 fps | 100% |
| IMR 8208 XBR | <<locked>> | 94% | 42,337 psi | 88% | 2290 fps | 96.2% |
| Lovex D073.4 | <<locked>> | 84% | 41,553 psi | 87% | 2283 fps | 97.7% |
| Lovex D073.5 | <<locked>> | 90% | 41,002 psi | 86% | 2277 fps | 97% |
| Lovex D073.6 | <<locked>> | 98% | 41,785 psi | 87% | 2339 fps | 98% |
| Lovex S062ᴾ | <<locked>> | 100% | 41,104 psi | 86% | 2290 fps | 96.1% |
| Norma 200 | <<locked>> | 84% | 40,959 psi | 86% | 2241 fps | 100% |
| Norma 201 | <<locked>> | 96% | 41,002 psi | 86% | 2274 fps | 96% |
| Norma 202 | <<locked>> | 96% | 40,915 psi | 85% | 2297 fps | 98.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,039 psi | 67% | 1437 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 90% | 42,714 psi | 89% | 2297 fps | 97.7% |
| Rottweil R 901 | <<locked>> | 94% | 42,221 psi | 88% | 2280 fps | 98.4% |
| Rottweil R 902 | <<locked>> | 98% | 41,147 psi | 86% | 2267 fps | 96% |
| Shooters World AR Plus | <<locked>> | 84% | 41,553 psi | 87% | 2283 fps | 97.7% |
| Shooters World Match Rifle | <<locked>> | 98% | 41,785 psi | 87% | 2339 fps | 98% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 41,104 psi | 86% | 2290 fps | 96.1% |
| Shooters World Tactical Rifle | <<locked>> | 88% | 42,772 psi | 89% | 2257 fps | 95.8% |
| SNPE Vectan SP 10 | <<locked>> | 86% | 41,698 psi | 87% | 2297 fps | 98.4% |
| SNPE Vectan SP 3 | <<locked>> | 88% | 42,308 psi | 88% | 2274 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 94% | 41,611 psi | 87% | 2218 fps | 98.3% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 40,103 psi | 84% | 2211 fps | 98.9% |
| Somchem S321 | <<locked>> | 92% | 42,714 psi | 89% | 2323 fps | 96.7% |
| Somchem S335 | <<locked>> | 96% | 42,815 psi | 89% | 2260 fps | 99.2% |
| Vihtavuori N120 | <<locked>> | 82% | 41,205 psi | 86% | 2175 fps | 100% |
| Vihtavuori N130 | <<locked>> | 90% | 41,887 psi | 88% | 2221 fps | 100% |
| Vihtavuori N133 | <<locked>> | 94% | 41,031 psi | 86% | 2221 fps | 99.8% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 41,133 psi | 86% | 2306 fps | 99.9% |
| Vihtavuori N140 | <<locked>> | 98% | 41,437 psi | 87% | 2280 fps | 98.7% |
| Vihtavuori N530 | <<locked>> | 94% | 42,627 psi | 89% | 2290 fps | 96.3% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 42,395 psi | 89% | 2313 fps | 98.4% |
| Winchester 748 | <<locked>> | 94% | 40,843 psi | 85% | 2320 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 2015 | <<locked>> | 80% | 27,383 psi | 57% | 1991 fps | 97.2% |
| Accurate 2460 | <<locked>> | 82% | 31,328 psi | 65% | 2096 fps | 95.5% |
| Accurate 2495 | <<locked>> | 84% | 22,698 psi | 47% | 1952 fps | 95.8% |
| Accurate 2520 | 32.4 gr | 88% | 33,185 psi | 69% | 2175 fps | 95.7% |
| Accurate 4064 | <<locked>> | 92% | 28,065 psi | 59% | 2096 fps | 95.3% |
| Accurate LT-30 | <<locked>> | 80% | 36,579 psi | 76% | 2093 fps | 98.3% |
| Accurate LT-32 | <<locked>> | 80% | 36,970 psi | 77% | 2096 fps | 96.6% |
| ADI AR 2207 | <<locked>> | 80% | 38,334 psi | 80% | 2172 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 33,895 psi | 71% | 2159 fps | 97.6% |
| ADI Benchmark 8208 | <<locked>> | 92% | 39,740 psi | 83% | 2247 fps | 95.5% |
| Alliant AR-Comp | <<locked>> | 80% | 25,251 psi | 53% | 2005 fps | 98.7% |
| Alliant Reloder-10x | <<locked>> | 80% | 32,126 psi | 67% | 2100 fps | 99.3% |
| Alliant Reloder-7 | <<locked>> | 80% | 39,581 psi | 83% | 2178 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 34,737 psi | 73% | 2087 fps | 98.2% |
| Hodgdon Benchmark | <<locked>> | 88% | 38,159 psi | 80% | 2172 fps | 95.7% |
| Hodgdon BL-C2 | <<locked>> | 92% | 36,535 psi | 76% | 2251 fps | 95.3% |
| Hodgdon H322 | <<locked>> | 80% | 30,879 psi | 65% | 2093 fps | 96.6% |
| Hodgdon H335 | <<locked>> | 80% | 31,096 psi | 65% | 2106 fps | 95.5% |
| Hodgdon H4198 | <<locked>> | 80% | 40,451 psi | 85% | 2169 fps | 98.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,569 psi | 49% | 1250 fps | 100% |
| IMR 3031 | 27.7 gr | 82% | 25,875 psi | 54% | 2024 fps | 95.4% |
| IMR 4198 | <<locked>> | 80% | 34,258 psi | 72% | 2096 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 92% | 39,740 psi | 83% | 2247 fps | 95.5% |
| Lovex D073.4 | <<locked>> | 80% | 36,013 psi | 75% | 2188 fps | 96.3% |
| Lovex D073.5 | <<locked>> | 86% | 35,636 psi | 74% | 2182 fps | 95.5% |
| Lovex D073.6 | <<locked>> | 90% | 31,589 psi | 66% | 2152 fps | 95.1% |
| Lovex S062 | <<locked>> | 98% | 38,566 psi | 81% | 2247 fps | 95.3% |
| Norma 200 | <<locked>> | 80% | 35,911 psi | 75% | 2159 fps | 100% |
| Norma 201 | <<locked>> | 94% | 38,450 psi | 80% | 2228 fps | 95.3% |
| Norma 202 | <<locked>> | 86% | 29,820 psi | 62% | 2083 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,496 psi | 49% | 1283 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 34,896 psi | 73% | 2159 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 84% | 31,285 psi | 65% | 2077 fps | 95.4% |
| Rottweil R 902 | <<locked>> | 96% | 38,551 psi | 81% | 2224 fps | 95.2% |
| Shooters World AR Plus | <<locked>> | 80% | 36,013 psi | 75% | 2188 fps | 96.3% |
| Shooters World Match Rifle | <<locked>> | 90% | 31,589 psi | 66% | 2152 fps | 95.1% |
| Shooters World Precision | <<locked>> | 98% | 38,566 psi | 81% | 2247 fps | 95.3% |
| Shooters World Tactical Rifle | <<locked>> | 86% | 40,074 psi | 84% | 2215 fps | 95% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 34,142 psi | 71% | 2159 fps | 96.5% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 32,663 psi | 68% | 2100 fps | 98.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 30,443 psi | 64% | 2011 fps | 95.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 27,963 psi | 58% | 1975 fps | 95.4% |
| Somchem S321 | <<locked>> | 88% | 37,260 psi | 78% | 2228 fps | 95.2% |
| Somchem S335 | <<locked>> | 82% | 27,731 psi | 58% | 1975 fps | 95.2% |
| Vihtavuori N120 | <<locked>> | 80% | 38,566 psi | 81% | 2139 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 30,777 psi | 64% | 2028 fps | 98.9% |
| Vihtavuori N133 | <<locked>> | 80% | 26,716 psi | 56% | 1946 fps | 96.7% |
| Vihtavuori N135 | <<locked>> | 82% | 23,424 psi | 49% | 1936 fps | 95.6% |
| Vihtavuori N140 | <<locked>> | 88% | 30,124 psi | 63% | 2067 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 92% | 39,914 psi | 83% | 2244 fps | 95.6% |
| Vihtavuori N540 | <<locked>> | 90% | 30,661 psi | 64% | 2096 fps | 95.2% |
| Winchester 748 | 32.9 gr | 90% | 35,694 psi | 75% | 2224 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 52 powders for .308 Marlin Express loaded with the .308 | 175gr | Atomic 29 HP. IMR 3031 delivers the highest muzzle velocity at 2,379 fps; across all powders the maximum-charge window runs from 1,407 fps to 2,379 fps. Accurate 2495 gives the best case fill at 100 %, and 52 of the 52 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 175.0 gr projectile in 0.308" calls for a 1:11.5 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. IMR 3031, Winchester 748, Accurate 2520 rank at the top here: for .308 Marlin Express with the .308 | 175gr | 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.