Load Specifications
Load data in caliber 7.62 x 39 (.308) Russian with .310 | 125gr | Speer HP TNT bullet and 16 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 36, Lovex S053 and ADI AR 2207.
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 No. 11 FS | <<locked>> | 82% | 44,295 psi | 86% | 2224 fps | 98.8% |
| ADI AR 2205 | <<locked>> | 86% | 46,122 psi | 90% | 2188 fps | 99.9% |
| ADI AR 2207ᴾ | <<locked>> | 100% | 43,859 psi | 85% | 2310 fps | 98.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 28,471 psi | 55% | 1411 fps | 100% |
| IMR 4227 | <<locked>> | 92% | 44,831 psi | 87% | 2238 fps | 97.7% |
| Lovex D060 | <<locked>> | 86% | 46,122 psi | 90% | 2267 fps | 96.3% |
| Lovex D063 | <<locked>> | 82% | 45,063 psi | 88% | 2241 fps | 96.2% |
| Lovex S053 | <<locked>> | 94% | 45,223 psi | 88% | 2251 fps | 99.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 27,949 psi | 54% | 1444 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 94% | 46,137 psi | 90% | 2293 fps | 97.8% |
| Shooters World Blackout | <<locked>> | 82% | 45,063 psi | 88% | 2241 fps | 96.2% |
| Shooters World Buffalo Rifle | <<locked>> | 86% | 46,122 psi | 90% | 2267 fps | 96.3% |
| Shooters World SOCOM | <<locked>> | 86% | 46,296 psi | 90% | 2244 fps | 97.1% |
| SNPE Vectan BA6 1/2 | <<locked>> | 98% | 46,267 psi | 90% | 2162 fps | 100% |
| Vihtavuori N110 | <<locked>> | 88% | 44,962 psi | 87% | 2201 fps | 100% |
| Vihtavuori N120ᴾ | <<locked>> | 100% | 44,208 psi | 86% | 2283 fps | 99.5% |
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 No. 11 FS | <<locked>> | 80% | 41,365 psi | 80% | 2178 fps | 98.3% |
| ADI AR 2205 | <<locked>> | 80% | 38,392 psi | 75% | 2070 fps | 99.1% |
| ADI AR 2207 | 23.2 gr | 90% | 32,285 psi | 63% | 2103 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 20,595 psi | 40% | 1257 fps | 100% |
| IMR 4227 | <<locked>> | 84% | 34,954 psi | 68% | 2070 fps | 95% |
| Lovex D060 | <<locked>> | 82% | 41,162 psi | 80% | 2185 fps | 95% |
| Lovex D063 | <<locked>> | 80% | 42,453 psi | 82% | 2198 fps | 95.5% |
| Lovex S053 | 19.8 gr | 80% | 30,095 psi | 58% | 1982 fps | 96.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 20,392 psi | 40% | 1289 fps | 100% |
| ReloadSwiss RS 36 | 23.1 gr | 86% | 35,781 psi | 69% | 2119 fps | 95.1% |
| Shooters World Blackout | <<locked>> | 80% | 42,453 psi | 82% | 2198 fps | 95.5% |
| Shooters World Buffalo Rifle | <<locked>> | 82% | 41,162 psi | 80% | 2185 fps | 95% |
| Shooters World SOCOM | <<locked>> | 82% | 40,292 psi | 78% | 2152 fps | 95.6% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 28,543 psi | 55% | 1886 fps | 100% |
| Vihtavuori N110 | <<locked>> | 80% | 35,491 psi | 69% | 2060 fps | 100% |
| Vihtavuori N120 | <<locked>> | 86% | 29,153 psi | 57% | 2008 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 16 powders for 7.62 x 39 (.308) Russian loaded with the .310 | 125gr | Speer HP TNT. ADI AR 2207 delivers the highest muzzle velocity at 2,310 fps; across all powders the maximum-charge window runs from 1,411 fps to 2,310 fps. ADI AR 2207 gives the best case fill at 100 %, and 16 of the 16 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (355 MPa), the top charges use 54–90 %, leaving at least 10 % headroom. ADI AR 2207, Hodgdon TrailBoss, ReloadSwiss RS 14 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. ReloadSwiss RS 36, Lovex S053, ADI AR 2207 rank at the top here: for 7.62 x 39 (.308) Russian with the .310 | 125gr | Speer HP TNT 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.