Load Specifications
Load data in caliber 7.62 x 39 (.308) Russian with .308 | 150gr | Osprey Virtus bullet and 18 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 1680 | <<locked>> | 96% | 45,600 psi | 89% | 1991 fps | 95.8% |
| Accurate No. 11 FS | <<locked>> | 84% | 45,455 psi | 88% | 1991 fps | 99.4% |
| ADI AR 2205 | <<locked>> | 86% | 44,309 psi | 86% | 1916 fps | 99.9% |
| ADI AR 2207ᴾ | <<locked>> | 100% | 41,466 psi | 81% | 2028 fps | 98.9% |
| Alliant Reloder-7ᴾ | <<locked>> | 100% | 44,715 psi | 87% | 2028 fps | 96.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 27,760 psi | 54% | 1220 fps | 100% |
| IMR 4227 | <<locked>> | 94% | 45,440 psi | 88% | 1995 fps | 98.4% |
| Lovex D060 | <<locked>> | 86% | 44,643 psi | 87% | 1991 fps | 96.8% |
| Lovex D063 | <<locked>> | 84% | 46,586 psi | 90% | 2011 fps | 97.3% |
| Lovex S053 | <<locked>> | 96% | 45,556 psi | 88% | 2001 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 27,296 psi | 53% | 1253 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 96% | 46,470 psi | 90% | 2047 fps | 98.5% |
| Shooters World Blackout | <<locked>> | 84% | 46,586 psi | 90% | 2011 fps | 97.3% |
| Shooters World Buffalo Rifle | <<locked>> | 86% | 44,643 psi | 87% | 1991 fps | 96.8% |
| Shooters World SOCOM | <<locked>> | 86% | 44,585 psi | 87% | 1975 fps | 97.4% |
| SNPE Vectan BA6 1/2 | <<locked>> | 98% | 44,469 psi | 86% | 1893 fps | 100% |
| Vihtavuori N110 | <<locked>> | 90% | 45,542 psi | 88% | 1955 fps | 100% |
| Vihtavuori N120ᴾ | <<locked>> | 100% | 41,843 psi | 81% | 2005 fps | 99.6% |
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>> | 94% | 42,540 psi | 83% | 1952 fps | 95% |
| Accurate No. 11 FS | <<locked>> | 80% | 39,581 psi | 77% | 1913 fps | 98.6% |
| ADI AR 2205 | <<locked>> | 80% | 37,043 psi | 72% | 1814 fps | 99.3% |
| ADI AR 2207 | <<locked>> | 88% | 28,689 psi | 56% | 1808 fps | 95.2% |
| Alliant Reloder-7 | <<locked>> | 96% | 39,465 psi | 77% | 1952 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 20,392 psi | 40% | 1093 fps | 100% |
| IMR 4227 | 17.9 gr | 84% | 33,678 psi | 65% | 1818 fps | 95.5% |
| Lovex D060 | <<locked>> | 82% | 39,479 psi | 77% | 1913 fps | 95.4% |
| Lovex D063 | <<locked>> | 80% | 40,553 psi | 79% | 1929 fps | 95.9% |
| Lovex S053 | 16.7 gr | 80% | 28,703 psi | 56% | 1739 fps | 97.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 19,754 psi | 38% | 1115 fps | 100% |
| ReloadSwiss RS 36 | 19.5 gr | 86% | 34,229 psi | 66% | 1867 fps | 95.6% |
| Shooters World Blackout | <<locked>> | 80% | 40,553 psi | 79% | 1929 fps | 95.9% |
| Shooters World Buffalo Rifle | <<locked>> | 82% | 39,479 psi | 77% | 1913 fps | 95.4% |
| Shooters World SOCOM | <<locked>> | 80% | 36,245 psi | 70% | 1850 fps | 95.2% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 27,456 psi | 53% | 1654 fps | 100% |
| Vihtavuori N110 | <<locked>> | 80% | 33,765 psi | 66% | 1801 fps | 100% |
| Vihtavuori N120 | <<locked>> | 84% | 26,063 psi | 51% | 1729 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 18 powders for 7.62 x 39 (.308) Russian loaded with the .308 | 150gr | Osprey Virtus. ReloadSwiss RS 36 delivers the highest muzzle velocity at 2,047 fps; across all powders the maximum-charge window runs from 1,220 fps to 2,047 fps. ADI AR 2207 gives the best case fill at 100 %, and 18 of the 18 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 150.0 gr projectile in 0.308" calls for a 1:13.0 twist; slower twists will usually not stabilise this weight. ADI AR 2207, Alliant Reloder-7, Hodgdon TrailBoss 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 | 150gr | Osprey Virtus 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.