Load Specifications
Load data in caliber .308 Marlin Express with .308 | 165gr | Remington SP Extended-Range BT bullet and 53 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% | 41,437 psi | 87% | 2388 fps | 100% |
| Accurate 2460 | <<locked>> | 86% | 42,177 psi | 88% | 2428 fps | 98.8% |
| Accurate 2495 | <<locked>> | 96% | 41,959 psi | 88% | 2464 fps | 100% |
| Accurate 2520 | <<locked>> | 90% | 42,438 psi | 89% | 2470 fps | 98.6% |
| Accurate 4064 | <<locked>> | 98% | 41,785 psi | 87% | 2484 fps | 99.3% |
| ADI AR 2219 | <<locked>> | 82% | 41,553 psi | 87% | 2434 fps | 99.5% |
| ADI Benchmark 8208 | <<locked>> | 90% | 43,091 psi | 90% | 2444 fps | 97% |
| Alliant AR-Comp | <<locked>> | 90% | 40,756 psi | 85% | 2454 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 40,785 psi | 85% | 2477 fps | 95.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 98% | 42,090 psi | 88% | 2480 fps | 96.5% |
| Alliant Reloder-10x | <<locked>> | 84% | 42,032 psi | 88% | 2405 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 41,989 psi | 88% | 2346 fps | 99.7% |
| Bofors RP3 | <<locked>> | 98% | 41,481 psi | 87% | 2484 fps | 96.5% |
| Hodgdon Benchmark | <<locked>> | 88% | 43,149 psi | 90% | 2402 fps | 97.6% |
| Hodgdon BL-C2 | <<locked>> | 92% | 43,192 psi | 90% | 2507 fps | 97.7% |
| Hodgdon H322 | <<locked>> | 86% | 43,236 psi | 90% | 2464 fps | 99.6% |
| Hodgdon H335 | <<locked>> | 84% | 41,118 psi | 86% | 2431 fps | 98.8% |
| Hodgdon H4895 | <<locked>> | 92% | 43,265 psi | 90% | 2480 fps | 96.4% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 41,524 psi | 87% | 2493 fps | 96.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,373 psi | 70% | 1532 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 42,264 psi | 88% | 2441 fps | 95.9% |
| IMR 3031 | <<locked>> | 92% | 41,510 psi | 87% | 2493 fps | 99.9% |
| IMR 4198 | <<locked>> | 82% | 40,770 psi | 85% | 2343 fps | 100% |
| IMR 8208 XBR | <<locked>> | 90% | 43,091 psi | 90% | 2444 fps | 97% |
| Lovex D073.5 | <<locked>> | 86% | 42,308 psi | 88% | 2431 fps | 97.8% |
| Lovex D073.6 | <<locked>> | 92% | 40,611 psi | 85% | 2454 fps | 98.2% |
| Lovex S062 | <<locked>> | 96% | 42,482 psi | 89% | 2451 fps | 97% |
| Norma 201 | <<locked>> | 92% | 42,148 psi | 88% | 2431 fps | 96.9% |
| Norma 202 | <<locked>> | 92% | 41,989 psi | 88% | 2448 fps | 99% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,199 psi | 69% | 1562 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 43,149 psi | 90% | 2444 fps | 98.3% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 42,815 psi | 89% | 2556 fps | 98% |
| Rottweil R 901 | <<locked>> | 88% | 41,205 psi | 86% | 2395 fps | 98.6% |
| Rottweil R 902 | <<locked>> | 94% | 42,525 psi | 89% | 2428 fps | 96.9% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 41,060 psi | 86% | 2467 fps | 96% |
| Shooters World Match Rifle | <<locked>> | 92% | 40,611 psi | 85% | 2454 fps | 98.2% |
| Shooters World Precision | <<locked>> | 96% | 42,482 psi | 89% | 2451 fps | 97% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 43,004 psi | 90% | 2402 fps | 96.5% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 42,047 psi | 88% | 2438 fps | 98.8% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 42,815 psi | 89% | 2418 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 42,351 psi | 88% | 2365 fps | 98.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 40,901 psi | 85% | 2359 fps | 99.3% |
| Somchem S321 | <<locked>> | 86% | 40,698 psi | 85% | 2425 fps | 96.8% |
| Somchem S335 | <<locked>> | 90% | 41,191 psi | 86% | 2369 fps | 99.3% |
| Somchem S355ᴾ | <<locked>> | 100% | 42,467 psi | 89% | 2474 fps | 96.1% |
| Vihtavuori N130 | <<locked>> | 86% | 42,728 psi | 89% | 2365 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 41,974 psi | 88% | 2369 fps | 100% |
| Vihtavuori N135 | <<locked>> | 96% | 42,888 psi | 90% | 2464 fps | 100% |
| Vihtavuori N140 | <<locked>> | 94% | 42,250 psi | 88% | 2431 fps | 99.2% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 40,988 psi | 86% | 2421 fps | 97.1% |
| Vihtavuori N530 | <<locked>> | 90% | 43,163 psi | 90% | 2441 fps | 97.1% |
| Vihtavuori N540 | <<locked>> | 94% | 40,770 psi | 85% | 2421 fps | 98.6% |
| Winchester 748 | <<locked>> | 90% | 41,611 psi | 87% | 2477 fps | 97.6% |
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% | 32,430 psi | 68% | 2218 fps | 99% |
| Accurate 2460 | <<locked>> | 80% | 34,795 psi | 73% | 2290 fps | 97.2% |
| Accurate 2495 | <<locked>> | 80% | 24,845 psi | 52% | 2106 fps | 97.1% |
| Accurate 2520 | <<locked>> | 80% | 30,182 psi | 63% | 2228 fps | 95.1% |
| Accurate 4064 | <<locked>> | 84% | 26,818 psi | 56% | 2165 fps | 95.1% |
| ADI AR 2219 | <<locked>> | 80% | 38,972 psi | 81% | 2388 fps | 99.1% |
| ADI Benchmark 8208 | <<locked>> | 86% | 38,189 psi | 80% | 2352 fps | 95.7% |
| Alliant AR-Comp | <<locked>> | 80% | 29,544 psi | 62% | 2231 fps | 99.9% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 37,884 psi | 79% | 2418 fps | 95% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 36,927 psi | 77% | 2382 fps | 95% |
| Alliant Reloder-10x | <<locked>> | 80% | 37,028 psi | 77% | 2316 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 39,349 psi | 82% | 2300 fps | 99.4% |
| Bofors RP3 | <<locked>> | 96% | 38,595 psi | 81% | 2431 fps | 95.7% |
| Hodgdon Benchmark | <<locked>> | 82% | 36,114 psi | 75% | 2267 fps | 95.7% |
| Hodgdon BL-C2 | <<locked>> | 86% | 35,360 psi | 74% | 2356 fps | 95.6% |
| Hodgdon H322 | <<locked>> | 80% | 35,752 psi | 75% | 2323 fps | 98.5% |
| Hodgdon H335 | <<locked>> | 80% | 36,071 psi | 75% | 2336 fps | 97.7% |
| Hodgdon H4895 | <<locked>> | 88% | 38,348 psi | 80% | 2388 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 38,870 psi | 81% | 2441 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,598 psi | 51% | 1365 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 39,769 psi | 83% | 2395 fps | 95.2% |
| IMR 3031 | 31.8 gr | 80% | 28,355 psi | 59% | 2208 fps | 97.1% |
| IMR 4198 | <<locked>> | 80% | 38,551 psi | 81% | 2303 fps | 100% |
| IMR 8208 XBR | <<locked>> | 86% | 38,189 psi | 80% | 2352 fps | 95.7% |
| Lovex D073.5 | <<locked>> | 80% | 34,374 psi | 72% | 2280 fps | 95.6% |
| Lovex D073.6 | <<locked>> | 84% | 30,966 psi | 65% | 2257 fps | 95.4% |
| Lovex S062 | <<locked>> | 92% | 37,565 psi | 78% | 2359 fps | 95.7% |
| Norma 201 | <<locked>> | 88% | 37,318 psi | 78% | 2339 fps | 95.6% |
| Norma 202 | <<locked>> | 80% | 28,892 psi | 60% | 2175 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,584 psi | 51% | 1398 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 35,578 psi | 74% | 2300 fps | 96.5% |
| ReloadSwiss RS 60 | 40.6 gr | 94% | 35,549 psi | 74% | 2398 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 80% | 32,590 psi | 68% | 2221 fps | 96.4% |
| Rottweil R 902 | <<locked>> | 90% | 37,652 psi | 79% | 2336 fps | 95.6% |
| Rottweil R 903 | <<locked>> | 98% | 38,493 psi | 80% | 2418 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 84% | 30,966 psi | 65% | 2257 fps | 95.4% |
| Shooters World Precision | <<locked>> | 92% | 37,565 psi | 78% | 2359 fps | 95.7% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 37,739 psi | 79% | 2306 fps | 95.1% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 39,552 psi | 83% | 2395 fps | 98.4% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 37,637 psi | 79% | 2326 fps | 99.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 31,096 psi | 65% | 2146 fps | 96.1% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 26,803 psi | 56% | 2064 fps | 95.5% |
| Somchem S321 | <<locked>> | 82% | 35,476 psi | 74% | 2323 fps | 95.2% |
| Somchem S335 | <<locked>> | 80% | 30,472 psi | 64% | 2152 fps | 96.8% |
| Somchem S355 | <<locked>> | 98% | 39,885 psi | 83% | 2428 fps | 95.3% |
| Vihtavuori N130 | <<locked>> | 80% | 35,418 psi | 74% | 2238 fps | 99.8% |
| Vihtavuori N133 | <<locked>> | 80% | 30,879 psi | 65% | 2159 fps | 98.5% |
| Vihtavuori N135 | <<locked>> | 80% | 25,976 psi | 54% | 2116 fps | 97.3% |
| Vihtavuori N140 | <<locked>> | 80% | 27,441 psi | 57% | 2119 fps | 95% |
| Vihtavuori N150 | <<locked>> | 96% | 36,201 psi | 76% | 2333 fps | 95.8% |
| Vihtavuori N530 | <<locked>> | 86% | 38,072 psi | 80% | 2346 fps | 95.7% |
| Vihtavuori N540 | <<locked>> | 84% | 29,689 psi | 62% | 2192 fps | 95.4% |
| Winchester 748 | 36.2 gr | 84% | 34,185 psi | 71% | 2326 fps | 95.4% |
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 53 powders for .308 Marlin Express loaded with the .308 | 165gr | Remington SP Extended-Range BT. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,556 fps; across all powders the maximum-charge window runs from 1,532 fps to 2,556 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 53 of the 53 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 165.0 gr projectile in 0.308" calls for a 1:6.0 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 | 165gr | Remington SP Extended-Range BT 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.