Load Specifications
Load data in caliber .308 Marlin Express with .310 | 175gr | Rhino Penetrator bullet and 49 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are IMR 3031, Lovex D073.6 and Shooters World Match Rifle.
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>> | 92% | 41,800 psi | 87% | 2257 fps | 99.9% |
| Accurate 2460 | <<locked>> | 90% | 42,859 psi | 90% | 2300 fps | 98.5% |
| Accurate 2495ᴾ | <<locked>> | 100% | 41,597 psi | 87% | 2326 fps | 100% |
| Accurate 2520 | <<locked>> | 94% | 42,641 psi | 89% | 2336 fps | 98.2% |
| Accurate 4064ᴾ | <<locked>> | 100% | 38,711 psi | 81% | 2300 fps | 98.5% |
| Accurate LT-30 | <<locked>> | 84% | 42,409 psi | 89% | 2188 fps | 99.3% |
| Accurate LT-32 | <<locked>> | 84% | 42,844 psi | 90% | 2195 fps | 98% |
| ADI AR 2207 | <<locked>> | 82% | 42,554 psi | 89% | 2231 fps | 100% |
| ADI AR 2219 | <<locked>> | 86% | 42,612 psi | 89% | 2310 fps | 99.3% |
| ADI Benchmark 8208 | <<locked>> | 92% | 41,089 psi | 86% | 2264 fps | 95.9% |
| Alliant AR-Comp | <<locked>> | 94% | 41,263 psi | 86% | 2323 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 88% | 42,757 psi | 89% | 2280 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 86% | 43,178 psi | 90% | 2224 fps | 99.5% |
| Hodgdon Benchmark | <<locked>> | 90% | 41,872 psi | 87% | 2234 fps | 96.7% |
| Hodgdon BL-C2 | <<locked>> | 94% | 40,785 psi | 85% | 2323 fps | 96.6% |
| Hodgdon H322 | <<locked>> | 88% | 41,437 psi | 87% | 2290 fps | 99.2% |
| Hodgdon H335 | <<locked>> | 88% | 42,177 psi | 88% | 2310 fps | 98.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,401 psi | 68% | 1407 fps | 100% |
| IMR 3031 | <<locked>> | 96% | 41,611 psi | 87% | 2352 fps | 99.7% |
| IMR 4198 | <<locked>> | 86% | 41,916 psi | 88% | 2221 fps | 100% |
| IMR 8208 XBR | <<locked>> | 92% | 41,089 psi | 86% | 2264 fps | 95.9% |
| Lovex D073.4 | <<locked>> | 82% | 40,495 psi | 85% | 2260 fps | 97.5% |
| Lovex D073.5 | <<locked>> | 90% | 42,641 psi | 89% | 2297 fps | 97.3% |
| Lovex D073.6 | <<locked>> | 96% | 40,669 psi | 85% | 2316 fps | 97.8% |
| Lovex S062ᴾ | <<locked>> | 100% | 42,670 psi | 89% | 2313 fps | 96.5% |
| Norma 200 | <<locked>> | 84% | 42,801 psi | 89% | 2264 fps | 100% |
| Norma 201 | <<locked>> | 96% | 42,583 psi | 89% | 2293 fps | 96.4% |
| Norma 202 | <<locked>> | 96% | 42,438 psi | 89% | 2316 fps | 98.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,619 psi | 68% | 1444 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 88% | 41,060 psi | 86% | 2267 fps | 97.4% |
| Rottweil R 901 | <<locked>> | 92% | 41,481 psi | 87% | 2264 fps | 98.2% |
| Rottweil R 902 | <<locked>> | 98% | 42,743 psi | 89% | 2287 fps | 96.4% |
| Shooters World AR Plus | <<locked>> | 82% | 40,495 psi | 85% | 2260 fps | 97.5% |
| Shooters World Match Rifle | <<locked>> | 96% | 40,669 psi | 85% | 2316 fps | 97.8% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 42,670 psi | 89% | 2313 fps | 96.5% |
| SNPE Vectan SP 10 | <<locked>> | 86% | 43,120 psi | 90% | 2316 fps | 98.6% |
| SNPE Vectan SP 3 | <<locked>> | 86% | 40,973 psi | 86% | 2247 fps | 99.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 92% | 40,712 psi | 85% | 2198 fps | 98.1% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 41,379 psi | 86% | 2228 fps | 99.1% |
| Somchem S321 | <<locked>> | 90% | 41,481 psi | 87% | 2297 fps | 96.4% |
| Somchem S335 | <<locked>> | 94% | 41,713 psi | 87% | 2238 fps | 99% |
| Vihtavuori N120 | <<locked>> | 82% | 42,685 psi | 89% | 2192 fps | 100% |
| Vihtavuori N130 | <<locked>> | 88% | 41,017 psi | 86% | 2205 fps | 100% |
| Vihtavuori N133 | <<locked>> | 94% | 42,786 psi | 89% | 2244 fps | 99.9% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 42,743 psi | 89% | 2326 fps | 100% |
| Vihtavuori N140 | <<locked>> | 98% | 42,801 psi | 89% | 2300 fps | 98.9% |
| Vihtavuori N530 | <<locked>> | 92% | 41,321 psi | 86% | 2264 fps | 96% |
| Vihtavuori N540 | <<locked>> | 98% | 41,118 psi | 86% | 2290 fps | 98.2% |
| Winchester 748 | <<locked>> | 94% | 42,134 psi | 88% | 2339 fps | 97.1% |
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% | 28,950 psi | 60% | 2018 fps | 97.8% |
| Accurate 2460 | <<locked>> | 80% | 30,647 psi | 64% | 2073 fps | 95.2% |
| Accurate 2495 | <<locked>> | 80% | 21,509 psi | 45% | 1903 fps | 95.1% |
| Accurate 2520 | <<locked>> | 86% | 32,590 psi | 68% | 2156 fps | 95.5% |
| Accurate 4064 | <<locked>> | 90% | 28,282 psi | 59% | 2090 fps | 95.4% |
| Accurate LT-30 | <<locked>> | 80% | 37,782 psi | 79% | 2110 fps | 98.6% |
| Accurate LT-32 | <<locked>> | 80% | 38,174 psi | 80% | 2116 fps | 96.9% |
| ADI AR 2207 | <<locked>> | 80% | 39,856 psi | 83% | 2192 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 34,882 psi | 73% | 2172 fps | 97.9% |
| ADI Benchmark 8208 | <<locked>> | 90% | 38,609 psi | 81% | 2221 fps | 95.1% |
| Alliant AR-Comp | <<locked>> | 80% | 26,571 psi | 56% | 2031 fps | 99.1% |
| Alliant Reloder-10x | <<locked>> | 80% | 33,344 psi | 70% | 2116 fps | 99.5% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 35,897 psi | 75% | 2103 fps | 98.5% |
| Hodgdon Benchmark | <<locked>> | 86% | 37,130 psi | 78% | 2149 fps | 95.4% |
| Hodgdon BL-C2 | <<locked>> | 90% | 35,679 psi | 75% | 2228 fps | 95.1% |
| Hodgdon H322 | <<locked>> | 80% | 32,126 psi | 67% | 2116 fps | 97.1% |
| Hodgdon H335 | <<locked>> | 80% | 32,387 psi | 68% | 2126 fps | 96% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,120 psi | 50% | 1260 fps | 100% |
| IMR 3031 | 27.2 gr | 80% | 25,527 psi | 53% | 2005 fps | 95.2% |
| IMR 4198 | <<locked>> | 80% | 35,157 psi | 73% | 2106 fps | 100% |
| IMR 8208 XBR | <<locked>> | 90% | 38,609 psi | 81% | 2221 fps | 95.1% |
| Lovex D073.4 | <<locked>> | 80% | 37,637 psi | 79% | 2211 fps | 96.7% |
| Lovex D073.5 | <<locked>> | 84% | 34,983 psi | 73% | 2162 fps | 95.2% |
| Lovex D073.6 | 32.6 gr | 90% | 33,141 psi | 69% | 2178 fps | 95.7% |
| Lovex S062 | <<locked>> | 96% | 37,637 psi | 79% | 2224 fps | 95.1% |
| Norma 200 | <<locked>> | 80% | 37,753 psi | 79% | 2182 fps | 100% |
| Norma 201 | <<locked>> | 92% | 37,608 psi | 79% | 2208 fps | 95% |
| Norma 202 | <<locked>> | 84% | 29,327 psi | 61% | 2064 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,105 psi | 50% | 1289 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 34,055 psi | 71% | 2136 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 82% | 31,053 psi | 65% | 2060 fps | 95.3% |
| Rottweil R 902 | <<locked>> | 94% | 38,043 psi | 79% | 2208 fps | 95.1% |
| Shooters World AR Plus | <<locked>> | 80% | 37,637 psi | 79% | 2211 fps | 96.7% |
| Shooters World Match Rifle | 32.6 gr | 90% | 33,141 psi | 69% | 2178 fps | 95.7% |
| Shooters World Precision | <<locked>> | 96% | 37,637 psi | 79% | 2224 fps | 95.1% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 35,549 psi | 74% | 2182 fps | 97% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 33,997 psi | 71% | 2119 fps | 98.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 30,081 psi | 63% | 1998 fps | 95.1% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 27,369 psi | 57% | 1955 fps | 95.1% |
| Somchem S321 | <<locked>> | 88% | 38,696 psi | 81% | 2251 fps | 95.6% |
| Somchem S335 | <<locked>> | 80% | 27,412 psi | 57% | 1959 fps | 95.1% |
| Vihtavuori N120 | <<locked>> | 80% | 40,016 psi | 84% | 2152 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 32,126 psi | 67% | 2047 fps | 99.1% |
| Vihtavuori N133 | <<locked>> | 80% | 27,934 psi | 58% | 1969 fps | 97.2% |
| Vihtavuori N135 | <<locked>> | 80% | 23,221 psi | 49% | 1919 fps | 95.4% |
| Vihtavuori N140 | <<locked>> | 86% | 29,544 psi | 62% | 2047 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 90% | 38,711 psi | 81% | 2221 fps | 95.3% |
| Vihtavuori N540 | <<locked>> | 90% | 31,952 psi | 67% | 2116 fps | 95.7% |
| Winchester 748 | <<locked>> | 90% | 36,970 psi | 77% | 2244 fps | 95.7% |
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 49 powders for .308 Marlin Express loaded with the .310 | 175gr | Rhino Penetrator. IMR 3031 delivers the highest muzzle velocity at 2,352 fps; across all powders the maximum-charge window runs from 1,407 fps to 2,352 fps. Accurate 2495 gives the best case fill at 100 %, and 49 of the 49 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 175.0 gr projectile in 0.31" 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. IMR 3031, Lovex D073.6, Shooters World Match Rifle rank at the top here: for .308 Marlin Express with the .310 | 175gr | Rhino Penetrator 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.