Load Specifications
Load data in caliber 7.62 x 39 (.308) Russian with .308 | 170gr | Speer Hot-Cor bullet and 19 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ADI AR 2207, ReloadSwiss RS 36 and Vihtavuori N120.
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: 16"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 90% | 43,903 psi | 85% | 1870 fps | 97.4% |
| ADI AR 2205 | <<locked>> | 82% | 45,136 psi | 88% | 1814 fps | 100% |
| ADI AR 2207 | <<locked>> | 96% | 44,527 psi | 86% | 1949 fps | 99.9% |
| Alliant Reloder-10xᴾ | <<locked>> | 100% | 41,263 psi | 80% | 1923 fps | 97.1% |
| Alliant Reloder-7 | <<locked>> | 94% | 44,498 psi | 86% | 1913 fps | 98.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 29,733 psi | 58% | 1171 fps | 100% |
| IMR 4198ᴾ | <<locked>> | 100% | 44,947 psi | 87% | 1926 fps | 98.6% |
| IMR 4227 | <<locked>> | 88% | 44,309 psi | 86% | 1873 fps | 99.4% |
| Lovex D060 | <<locked>> | 82% | 44,875 psi | 87% | 1890 fps | 98.4% |
| Lovex S053 | <<locked>> | 90% | 44,962 psi | 87% | 1877 fps | 100% |
| Norma 200 | <<locked>> | 98% | 44,295 psi | 86% | 1955 fps | 98.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 29,501 psi | 57% | 1201 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 90% | 45,861 psi | 89% | 1926 fps | 99.5% |
| Shooters World Buffalo Rifle | <<locked>> | 82% | 44,875 psi | 87% | 1890 fps | 98.4% |
| Shooters World SOCOM | <<locked>> | 82% | 45,063 psi | 88% | 1877 fps | 98.9% |
| SNPE Vectan BA6 1/2 | <<locked>> | 92% | 44,266 psi | 86% | 1768 fps | 100% |
| Vihtavuori N110 | <<locked>> | 84% | 44,889 psi | 87% | 1821 fps | 100% |
| Vihtavuori N120 | <<locked>> | 96% | 44,817 psi | 87% | 1923 fps | 100% |
| Vihtavuori N130ᴾ | <<locked>> | 100% | 40,089 psi | 78% | 1854 fps | 96.4% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 16"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 84% | 36,158 psi | 70% | 1762 fps | 95.4% |
| ADI AR 2205 | <<locked>> | 80% | 42,250 psi | 82% | 1781 fps | 100% |
| ADI AR 2207 | 18 gr | 80% | 27,267 psi | 53% | 1673 fps | 96.7% |
| Alliant Reloder-10x | <<locked>> | 94% | 34,185 psi | 66% | 1814 fps | 95% |
| Alliant Reloder-7 | <<locked>> | 84% | 32,518 psi | 63% | 1732 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 21,872 psi | 42% | 1043 fps | 100% |
| IMR 4198 | <<locked>> | 88% | 32,227 psi | 63% | 1729 fps | 95.1% |
| IMR 4227 | <<locked>> | 80% | 34,679 psi | 67% | 1736 fps | 97.7% |
| Lovex D060 | <<locked>> | 80% | 42,627 psi | 83% | 1857 fps | 98% |
| Lovex S053 | <<locked>> | 80% | 34,055 psi | 66% | 1726 fps | 99.7% |
| Norma 200 | <<locked>> | 88% | 32,256 psi | 63% | 1772 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 21,393 psi | 42% | 1066 fps | 100% |
| ReloadSwiss RS 36 | 18.7 gr | 80% | 33,446 psi | 65% | 1745 fps | 97.2% |
| Shooters World Buffalo Rifle | <<locked>> | 80% | 42,627 psi | 83% | 1857 fps | 98% |
| Shooters World SOCOM | <<locked>> | 80% | 42,235 psi | 82% | 1837 fps | 98.5% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 32,053 psi | 62% | 1614 fps | 100% |
| Vihtavuori N110 | <<locked>> | 80% | 40,059 psi | 78% | 1765 fps | 100% |
| Vihtavuori N120 | 18 gr | 80% | 27,630 psi | 54% | 1660 fps | 97.9% |
| Vihtavuori N130 | <<locked>> | 96% | 35,607 psi | 69% | 1788 fps | 95% |
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 19 powders for 7.62 x 39 (.308) Russian loaded with the .308 | 170gr | Speer Hot-Cor. Norma 200 delivers the highest muzzle velocity at 1,955 fps; across all powders the maximum-charge window runs from 1,171 fps to 1,955 fps. Alliant Reloder-10x gives the best case fill at 100 %, and 19 of the 19 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (355 MPa), the top charges use 57–89 %, leaving at least 11 % headroom. The 170.0 gr projectile in 0.308" calls for a 1:14.5 twist; slower twists will usually not stabilise this weight. Alliant Reloder-10x, Hodgdon TrailBoss, IMR 4198 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. ADI AR 2207, ReloadSwiss RS 36, Vihtavuori N120 rank at the top here: for 7.62 x 39 (.308) Russian with the .308 | 170gr | Speer Hot-Cor they combine a high case fill with complete burn and sit in the upper velocity band. Hodgdon TrailBoss, ReloadSwiss RS 14 stay subsonic at start load. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.