Load Specifications
Load data in caliber .308 Marlin Express with .308 | 170gr | Prvi Partizan FSP bullet and 55 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 ReloadSwiss RS 60.
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>> | 88% | 41,553 psi | 87% | 2343 fps | 100% |
| Accurate 2460 | <<locked>> | 86% | 42,177 psi | 88% | 2382 fps | 98.9% |
| Accurate 2495 | <<locked>> | 96% | 42,105 psi | 88% | 2418 fps | 100% |
| Accurate 2520 | <<locked>> | 90% | 42,192 psi | 88% | 2421 fps | 98.6% |
| Accurate 4064 | <<locked>> | 98% | 41,582 psi | 87% | 2434 fps | 99.3% |
| ADI AR 2206H | <<locked>> | 92% | 43,105 psi | 90% | 2421 fps | 95.8% |
| ADI AR 2219 | <<locked>> | 82% | 41,640 psi | 87% | 2388 fps | 99.5% |
| ADI Benchmark 8208 | <<locked>> | 90% | 43,076 psi | 90% | 2395 fps | 97.1% |
| Alliant AR-Comp | <<locked>> | 90% | 40,669 psi | 85% | 2405 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 86% | 43,221 psi | 90% | 2474 fps | 96.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 98% | 41,959 psi | 88% | 2431 fps | 96.6% |
| Alliant Reloder-10x | <<locked>> | 84% | 41,959 psi | 88% | 2356 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 41,930 psi | 88% | 2297 fps | 99.7% |
| Bofors RP3 | <<locked>> | 98% | 41,060 psi | 86% | 2428 fps | 96.5% |
| Hodgdon Benchmark | <<locked>> | 88% | 43,308 psi | 90% | 2356 fps | 97.7% |
| Hodgdon BL-C2 | <<locked>> | 92% | 43,091 psi | 90% | 2454 fps | 97.8% |
| Hodgdon H322 | <<locked>> | 84% | 40,640 psi | 85% | 2372 fps | 99.4% |
| Hodgdon H335 | <<locked>> | 84% | 41,046 psi | 86% | 2385 fps | 98.9% |
| Hodgdon H4895 | <<locked>> | 90% | 40,727 psi | 85% | 2388 fps | 95.9% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 41,495 psi | 87% | 2444 fps | 96.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,301 psi | 70% | 1493 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 42,264 psi | 88% | 2395 fps | 96.1% |
| IMR 3031 | <<locked>> | 92% | 41,466 psi | 87% | 2444 fps | 99.9% |
| IMR 4198 | <<locked>> | 84% | 43,236 psi | 90% | 2333 fps | 100% |
| IMR 8208 XBR | <<locked>> | 90% | 43,076 psi | 90% | 2395 fps | 97.1% |
| Lovex D073.5 | <<locked>> | 86% | 42,032 psi | 88% | 2382 fps | 97.9% |
| Lovex D073.6 | <<locked>> | 94% | 43,091 psi | 90% | 2448 fps | 98.8% |
| Lovex S062 | <<locked>> | 96% | 42,206 psi | 88% | 2398 fps | 97.1% |
| Norma 201 | <<locked>> | 92% | 42,134 psi | 88% | 2382 fps | 97% |
| Norma 202 | <<locked>> | 92% | 41,959 psi | 88% | 2402 fps | 99% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,156 psi | 69% | 1526 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 43,018 psi | 90% | 2395 fps | 98.4% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 42,656 psi | 89% | 2507 fps | 98.1% |
| Rottweil R 901 | <<locked>> | 88% | 40,944 psi | 86% | 2346 fps | 98.7% |
| Rottweil R 902 | <<locked>> | 94% | 42,206 psi | 88% | 2375 fps | 97% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 41,031 psi | 86% | 2418 fps | 96.1% |
| Shooters World Match Rifle | <<locked>> | 94% | 43,091 psi | 90% | 2448 fps | 98.8% |
| Shooters World Precision | <<locked>> | 96% | 42,206 psi | 88% | 2398 fps | 97.1% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 43,004 psi | 90% | 2356 fps | 96.7% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 41,930 psi | 88% | 2388 fps | 98.9% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 42,757 psi | 89% | 2365 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 42,105 psi | 88% | 2316 fps | 98.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 40,901 psi | 85% | 2313 fps | 99.4% |
| Somchem S321 | <<locked>> | 86% | 40,393 psi | 84% | 2372 fps | 96.9% |
| Somchem S335 | <<locked>> | 90% | 41,104 psi | 86% | 2320 fps | 99.3% |
| Somchem S355ᴾ | <<locked>> | 100% | 42,322 psi | 88% | 2425 fps | 96.2% |
| Vihtavuori N130 | <<locked>> | 86% | 42,366 psi | 89% | 2313 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 41,713 psi | 87% | 2320 fps | 100% |
| Vihtavuori N135 | <<locked>> | 96% | 42,873 psi | 90% | 2415 fps | 100% |
| Vihtavuori N140 | <<locked>> | 94% | 42,322 psi | 88% | 2382 fps | 99.3% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 40,959 psi | 86% | 2375 fps | 97.2% |
| Vihtavuori N530 | <<locked>> | 90% | 43,134 psi | 90% | 2392 fps | 97.2% |
| Vihtavuori N540 | <<locked>> | 96% | 43,221 psi | 90% | 2418 fps | 99.1% |
| Winchester 748 | <<locked>> | 90% | 41,437 psi | 87% | 2425 fps | 97.7% |
| Winchester StaBALL Match | <<locked>> | 94% | 43,221 psi | 90% | 2441 fps | 96.5% |
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% | 32,300 psi | 67% | 2172 fps | 99.1% |
| Accurate 2460 | <<locked>> | 80% | 34,534 psi | 72% | 2241 fps | 97.2% |
| Accurate 2495 | <<locked>> | 80% | 24,772 psi | 52% | 2064 fps | 97.3% |
| Accurate 2520 | <<locked>> | 80% | 29,994 psi | 63% | 2178 fps | 95.2% |
| Accurate 4064 | <<locked>> | 84% | 26,818 psi | 56% | 2126 fps | 95.3% |
| ADI AR 2206H | <<locked>> | 90% | 40,553 psi | 85% | 2375 fps | 95.1% |
| ADI AR 2219 | <<locked>> | 80% | 38,696 psi | 81% | 2336 fps | 99.2% |
| ADI Benchmark 8208 | <<locked>> | 84% | 35,737 psi | 75% | 2257 fps | 95% |
| Alliant AR-Comp | <<locked>> | 80% | 29,675 psi | 62% | 2192 fps | 99.9% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 37,927 psi | 79% | 2372 fps | 95.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 36,970 psi | 77% | 2336 fps | 95.2% |
| Alliant Reloder-10x | <<locked>> | 80% | 37,086 psi | 77% | 2274 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 39,204 psi | 82% | 2251 fps | 99.4% |
| Bofors RP3 | <<locked>> | 94% | 35,969 psi | 75% | 2333 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 33,910 psi | 71% | 2175 fps | 95.1% |
| Hodgdon BL-C2 | <<locked>> | 86% | 35,099 psi | 73% | 2306 fps | 95.7% |
| Hodgdon H322 | <<locked>> | 80% | 35,665 psi | 75% | 2277 fps | 98.6% |
| Hodgdon H335 | <<locked>> | 80% | 35,940 psi | 75% | 2290 fps | 97.8% |
| Hodgdon H4895 | <<locked>> | 88% | 38,261 psi | 80% | 2339 fps | 95.1% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 38,740 psi | 81% | 2392 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,627 psi | 51% | 1332 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 39,711 psi | 83% | 2349 fps | 95.3% |
| IMR 3031 | 30.9 gr | 80% | 28,224 psi | 59% | 2162 fps | 97.3% |
| IMR 4198 | <<locked>> | 80% | 38,522 psi | 80% | 2254 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 35,737 psi | 75% | 2257 fps | 95% |
| Lovex D073.5 | <<locked>> | 80% | 34,200 psi | 71% | 2231 fps | 95.7% |
| Lovex D073.6 | <<locked>> | 84% | 30,850 psi | 64% | 2211 fps | 95.5% |
| Lovex S062 | <<locked>> | 90% | 35,201 psi | 74% | 2267 fps | 95.1% |
| Norma 201 | <<locked>> | 88% | 37,159 psi | 78% | 2290 fps | 95.7% |
| Norma 202 | <<locked>> | 80% | 28,790 psi | 60% | 2129 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,613 psi | 51% | 1365 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 35,346 psi | 74% | 2251 fps | 96.6% |
| ReloadSwiss RS 60 | 39.4 gr | 94% | 35,215 psi | 74% | 2346 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 80% | 32,460 psi | 68% | 2172 fps | 96.5% |
| Rottweil R 902 | <<locked>> | 88% | 35,215 psi | 74% | 2244 fps | 95% |
| Rottweil R 903 | <<locked>> | 98% | 38,392 psi | 80% | 2372 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 84% | 30,850 psi | 64% | 2211 fps | 95.5% |
| Shooters World Precision | <<locked>> | 90% | 35,201 psi | 74% | 2267 fps | 95.1% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 37,521 psi | 78% | 2257 fps | 95.1% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 39,378 psi | 82% | 2343 fps | 98.5% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 37,753 psi | 79% | 2280 fps | 99.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 31,212 psi | 65% | 2106 fps | 96.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 26,716 psi | 56% | 2021 fps | 95.7% |
| Somchem S321 | <<locked>> | 82% | 35,418 psi | 74% | 2277 fps | 95.4% |
| Somchem S335 | <<locked>> | 80% | 30,414 psi | 64% | 2110 fps | 97% |
| Somchem S355 | <<locked>> | 98% | 39,711 psi | 83% | 2379 fps | 95.5% |
| Vihtavuori N130 | <<locked>> | 80% | 35,563 psi | 74% | 2195 fps | 99.8% |
| Vihtavuori N133 | <<locked>> | 80% | 30,937 psi | 65% | 2119 fps | 98.6% |
| Vihtavuori N135 | <<locked>> | 80% | 26,020 psi | 54% | 2077 fps | 97.5% |
| Vihtavuori N140 | <<locked>> | 80% | 27,151 psi | 57% | 2070 fps | 95.1% |
| Vihtavuori N150 | <<locked>> | 94% | 33,794 psi | 71% | 2238 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 84% | 35,592 psi | 74% | 2254 fps | 95.1% |
| Vihtavuori N540 | <<locked>> | 84% | 29,588 psi | 62% | 2149 fps | 95.5% |
| Winchester 748 | 35.2 gr | 84% | 34,113 psi | 71% | 2280 fps | 95.5% |
| Winchester StaBALL Match | <<locked>> | 92% | 40,596 psi | 85% | 2395 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 55 powders for .308 Marlin Express loaded with the .308 | 170gr | Prvi Partizan FSP. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,507 fps; across all powders the maximum-charge window runs from 1,493 fps to 2,507 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 55 of the 55 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 1:16.0 twist; slower twists will usually not stabilise this weight. Hodgdon TrailBoss, ReloadSwiss RS 14, ReloadSwiss RS 60 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, ReloadSwiss RS 60 rank at the top here: for .308 Marlin Express with the .308 | 170gr | Prvi Partizan FSP 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.