Load Specifications
Load data in caliber .308 Marlin Express with .308 | 170gr | Speer Hot-Cor bullet and 52 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon BL-C2, 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>> | 90% | 42,467 psi | 89% | 2343 fps | 100% |
| Accurate 2460 | <<locked>> | 86% | 40,828 psi | 85% | 2343 fps | 98.5% |
| Accurate 2495 | <<locked>> | 98% | 42,844 psi | 90% | 2418 fps | 100% |
| Accurate 2520 | <<locked>> | 90% | 40,654 psi | 85% | 2379 fps | 98.1% |
| Accurate 4064ᴾ | <<locked>> | 100% | 42,670 psi | 89% | 2441 fps | 99.3% |
| Accurate LT-30 | <<locked>> | 82% | 42,554 psi | 89% | 2270 fps | 99.5% |
| Accurate LT-32 | <<locked>> | 82% | 42,931 psi | 90% | 2280 fps | 98.4% |
| ADI AR 2219 | <<locked>> | 84% | 43,047 psi | 90% | 2395 fps | 99.6% |
| ADI Benchmark 8208 | <<locked>> | 90% | 41,510 psi | 87% | 2352 fps | 96.5% |
| Alliant AR-Comp | <<locked>> | 92% | 42,003 psi | 88% | 2411 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 86% | 41,713 psi | 87% | 2431 fps | 96% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 42,946 psi | 90% | 2431 fps | 96.6% |
| Alliant Reloder-10x | <<locked>> | 86% | 43,134 psi | 90% | 2362 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 40,814 psi | 85% | 2264 fps | 99.5% |
| Bofors RP3ᴾ | <<locked>> | 100% | 42,090 psi | 88% | 2431 fps | 96.5% |
| Hodgdon Benchmark | <<locked>> | 88% | 41,814 psi | 87% | 2313 fps | 97.1% |
| Hodgdon BL-C2 | <<locked>> | 92% | 41,336 psi | 86% | 2411 fps | 97.2% |
| Hodgdon H322 | <<locked>> | 86% | 41,974 psi | 88% | 2379 fps | 99.5% |
| Hodgdon H335 | <<locked>> | 86% | 42,511 psi | 89% | 2395 fps | 98.9% |
| Hodgdon H4895 | <<locked>> | 92% | 41,800 psi | 87% | 2392 fps | 95.9% |
| Hodgdon LEVERevolution | <<locked>> | 96% | 42,554 psi | 89% | 2444 fps | 96.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,880 psi | 69% | 1473 fps | 100% |
| IMR 3031 | <<locked>> | 94% | 42,525 psi | 89% | 2448 fps | 99.9% |
| IMR 4198 | <<locked>> | 84% | 42,264 psi | 88% | 2303 fps | 100% |
| IMR 8208 XBR | <<locked>> | 90% | 41,510 psi | 87% | 2352 fps | 96.5% |
| Lovex D073.5 | <<locked>> | 88% | 43,250 psi | 90% | 2385 fps | 97.9% |
| Lovex D073.6 | <<locked>> | 94% | 41,582 psi | 87% | 2408 fps | 98.3% |
| Lovex S062 | <<locked>> | 96% | 41,017 psi | 86% | 2362 fps | 96.5% |
| Norma 201 | <<locked>> | 94% | 43,308 psi | 90% | 2385 fps | 97% |
| Norma 202 | <<locked>> | 94% | 43,134 psi | 90% | 2405 fps | 99.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,069 psi | 69% | 1512 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 41,408 psi | 87% | 2352 fps | 97.9% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 41,336 psi | 86% | 2457 fps | 97.4% |
| Rottweil R 901 | <<locked>> | 90% | 42,163 psi | 88% | 2349 fps | 98.7% |
| Rottweil R 902 | <<locked>> | 94% | 40,973 psi | 86% | 2339 fps | 96.4% |
| Shooters World Match Rifle | <<locked>> | 94% | 41,582 psi | 87% | 2408 fps | 98.3% |
| Shooters World Precision | <<locked>> | 96% | 41,017 psi | 86% | 2362 fps | 96.5% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 41,452 psi | 87% | 2313 fps | 96% |
| SNPE Vectan SP 10 | <<locked>> | 84% | 43,294 psi | 90% | 2398 fps | 99% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 41,118 psi | 86% | 2326 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 40,814 psi | 85% | 2277 fps | 98.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 98% | 42,119 psi | 88% | 2316 fps | 99.4% |
| Somchem S321 | <<locked>> | 88% | 41,901 psi | 88% | 2385 fps | 97% |
| Somchem S335 | <<locked>> | 92% | 42,163 psi | 88% | 2323 fps | 99.3% |
| Vihtavuori N130 | <<locked>> | 86% | 41,234 psi | 86% | 2283 fps | 100% |
| Vihtavuori N133 | <<locked>> | 92% | 43,134 psi | 90% | 2326 fps | 100% |
| Vihtavuori N135 | <<locked>> | 96% | 41,104 psi | 86% | 2375 fps | 100% |
| Vihtavuori N140 | <<locked>> | 94% | 40,814 psi | 85% | 2343 fps | 98.9% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 39,349 psi | 82% | 2333 fps | 96.5% |
| Vihtavuori N530 | <<locked>> | 90% | 41,611 psi | 87% | 2349 fps | 96.6% |
| Vihtavuori N540 | <<locked>> | 96% | 41,887 psi | 88% | 2379 fps | 98.7% |
| Winchester 748 | <<locked>> | 92% | 42,714 psi | 89% | 2431 fps | 97.7% |
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 2015 | <<locked>> | 80% | 31,154 psi | 65% | 2136 fps | 98.7% |
| Accurate 2460 | <<locked>> | 80% | 33,257 psi | 69% | 2201 fps | 96.6% |
| Accurate 2495 | <<locked>> | 80% | 23,714 psi | 50% | 2024 fps | 96.6% |
| Accurate 2520 | <<locked>> | 82% | 31,038 psi | 65% | 2192 fps | 95.3% |
| Accurate 4064 | <<locked>> | 86% | 27,398 psi | 57% | 2129 fps | 95.3% |
| Accurate LT-30 | <<locked>> | 80% | 39,856 psi | 83% | 2224 fps | 99.2% |
| Accurate LT-32 | <<locked>> | 80% | 40,248 psi | 84% | 2231 fps | 97.9% |
| ADI AR 2219 | <<locked>> | 80% | 37,637 psi | 79% | 2303 fps | 98.8% |
| ADI Benchmark 8208 | <<locked>> | 86% | 36,811 psi | 77% | 2264 fps | 95.1% |
| Alliant AR-Comp | <<locked>> | 80% | 28,660 psi | 60% | 2152 fps | 99.7% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 39,030 psi | 82% | 2379 fps | 95.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 38,000 psi | 79% | 2343 fps | 95.2% |
| Alliant Reloder-10x | <<locked>> | 80% | 35,853 psi | 75% | 2238 fps | 99.9% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 38,101 psi | 80% | 2218 fps | 99.1% |
| Bofors RP3 | <<locked>> | 96% | 37,028 psi | 77% | 2339 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 82% | 35,114 psi | 73% | 2185 fps | 95.2% |
| Hodgdon BL-C2 | 35.5 gr | 86% | 33,997 psi | 71% | 2270 fps | 95% |
| Hodgdon H322 | <<locked>> | 80% | 34,345 psi | 72% | 2238 fps | 98.1% |
| Hodgdon H335 | <<locked>> | 80% | 34,722 psi | 73% | 2251 fps | 97.3% |
| Hodgdon H4895 | <<locked>> | 90% | 39,204 psi | 82% | 2343 fps | 95.1% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 39,987 psi | 84% | 2398 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,294 psi | 51% | 1316 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 27,311 psi | 57% | 2123 fps | 96.6% |
| IMR 4198 | <<locked>> | 80% | 37,521 psi | 78% | 2224 fps | 100% |
| IMR 8208 XBR | <<locked>> | 86% | 36,811 psi | 77% | 2264 fps | 95.1% |
| Lovex D073.5 | <<locked>> | 80% | 32,982 psi | 69% | 2195 fps | 95% |
| Lovex D073.6 | 34.3 gr | 86% | 31,720 psi | 66% | 2218 fps | 95.6% |
| Lovex S062 | <<locked>> | 92% | 36,056 psi | 75% | 2270 fps | 95.1% |
| Norma 201 | <<locked>> | 88% | 35,940 psi | 75% | 2251 fps | 95% |
| Norma 202 | <<locked>> | 82% | 29,515 psi | 62% | 2136 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,279 psi | 51% | 1348 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 34,345 psi | 72% | 2215 fps | 96% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 36,492 psi | 76% | 2356 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 80% | 31,343 psi | 65% | 2136 fps | 95.8% |
| Rottweil R 902 | <<locked>> | 90% | 36,289 psi | 76% | 2251 fps | 95% |
| Shooters World Match Rifle | 34.3 gr | 86% | 31,720 psi | 66% | 2218 fps | 95.6% |
| Shooters World Precision | <<locked>> | 92% | 36,056 psi | 75% | 2270 fps | 95.1% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 38,827 psi | 81% | 2267 fps | 95.2% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 38,072 psi | 80% | 2306 fps | 98% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 36,448 psi | 76% | 2241 fps | 99.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 30,182 psi | 63% | 2067 fps | 95.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 27,412 psi | 57% | 2024 fps | 95.7% |
| Somchem S321 | <<locked>> | 84% | 36,550 psi | 76% | 2287 fps | 95.5% |
| Somchem S335 | <<locked>> | 80% | 29,472 psi | 62% | 2073 fps | 96.4% |
| Vihtavuori N130 | <<locked>> | 80% | 34,403 psi | 72% | 2162 fps | 99.7% |
| Vihtavuori N133 | <<locked>> | 80% | 29,921 psi | 63% | 2083 fps | 98.2% |
| Vihtavuori N135 | <<locked>> | 80% | 25,077 psi | 52% | 2037 fps | 96.8% |
| Vihtavuori N140 | <<locked>> | 82% | 28,079 psi | 59% | 2083 fps | 95.2% |
| Vihtavuori N150 | <<locked>> | 96% | 34,824 psi | 73% | 2244 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 86% | 36,767 psi | 77% | 2260 fps | 95.2% |
| Vihtavuori N540 | <<locked>> | 86% | 30,443 psi | 64% | 2156 fps | 95.6% |
| Winchester 748 | <<locked>> | 86% | 34,969 psi | 73% | 2283 fps | 95.5% |
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 | 170gr | Speer Hot-Cor. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,457 fps; across all powders the maximum-charge window runs from 1,473 fps to 2,457 fps. Accurate 4064 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 69–90 %, leaving at least 10 % headroom. The 170.0 gr projectile in 0.308" calls for a 1:14.5 twist; slower twists will usually not stabilise this weight. Accurate 4064, Alliant Reloder- TS 15.5, Bofors RP3 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. Hodgdon BL-C2, Lovex D073.6, Shooters World Match Rifle rank at the top here: for .308 Marlin Express with the .308 | 170gr | Speer Hot-Cor 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.