Load Specifications
Load data in caliber 7.62 x 39 (.308) Russian with .308 | 125gr | Remington PSP bullet and 14 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 IMR 4227.
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>> | 84% | 45,600 psi | 89% | 2224 fps | 98.8% |
| ADI AR 2205 | <<locked>> | 86% | 44,846 psi | 87% | 2149 fps | 99.7% |
| ADI AR 2207ᴾ | <<locked>> | 100% | 42,148 psi | 82% | 2267 fps | 98.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 28,050 psi | 54% | 1391 fps | 100% |
| IMR 4227 | <<locked>> | 94% | 45,643 psi | 89% | 2231 fps | 97.5% |
| Lovex D063 | <<locked>> | 84% | 46,499 psi | 90% | 2241 fps | 96.1% |
| Lovex S053 | <<locked>> | 96% | 45,948 psi | 89% | 2244 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 27,514 psi | 53% | 1424 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 94% | 43,874 psi | 85% | 2241 fps | 97% |
| Shooters World Blackout | <<locked>> | 84% | 46,499 psi | 90% | 2241 fps | 96.1% |
| Shooters World SOCOM | <<locked>> | 86% | 44,715 psi | 87% | 2201 fps | 96.3% |
| SNPE Vectan BA6 1/2 | <<locked>> | 98% | 44,672 psi | 87% | 2129 fps | 100% |
| Vihtavuori N110 | <<locked>> | 90% | 45,818 psi | 89% | 2201 fps | 100% |
| Vihtavuori N120ᴾ | <<locked>> | 100% | 42,511 psi | 83% | 2241 fps | 99% |
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% | 39,987 psi | 78% | 2139 fps | 97.7% |
| ADI AR 2205 | <<locked>> | 80% | 37,014 psi | 72% | 2028 fps | 98.6% |
| ADI AR 2207 | <<locked>> | 92% | 33,025 psi | 64% | 2103 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 20,363 psi | 40% | 1240 fps | 100% |
| IMR 4227 | 21.3 gr | 88% | 37,985 psi | 74% | 2110 fps | 95.6% |
| Lovex D063 | <<locked>> | 82% | 43,801 psi | 85% | 2201 fps | 95.5% |
| Lovex S053 | 19 gr | 80% | 28,964 psi | 56% | 1942 fps | 96.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 20,131 psi | 39% | 1273 fps | 100% |
| ReloadSwiss RS 36 | 22.7 gr | 88% | 36,666 psi | 71% | 2119 fps | 95% |
| Shooters World Blackout | <<locked>> | 82% | 43,801 psi | 85% | 2201 fps | 95.5% |
| Shooters World SOCOM | <<locked>> | 84% | 41,669 psi | 81% | 2156 fps | 95.5% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 27,644 psi | 54% | 1857 fps | 100% |
| Vihtavuori N110 | <<locked>> | 80% | 34,011 psi | 66% | 2021 fps | 100% |
| Vihtavuori N120 | <<locked>> | 88% | 29,718 psi | 58% | 2005 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 14 powders for 7.62 x 39 (.308) Russian loaded with the .308 | 125gr | Remington PSP. ADI AR 2207 delivers the highest muzzle velocity at 2,267 fps; across all powders the maximum-charge window runs from 1,391 fps to 2,267 fps. ADI AR 2207 gives the best case fill at 100 %, and 14 of the 14 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (355 MPa), the top charges use 53–90 %, leaving at least 10 % headroom. The 125.0 gr projectile in 0.308" calls for a 1:15.0 twist; slower twists will usually not stabilise this weight. 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, IMR 4227 rank at the top here: for 7.62 x 39 (.308) Russian with the .308 | 125gr | Remington PSP 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.