Load Specifications
Load data in caliber 7.62 x 39 (.308) Russian with .308 | 88gr | Inceptor SRR bullet and 7 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon LilGun, Lovex S040 and Vihtavuori N110.
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 |
|---|---|---|---|---|---|---|
| ADI AR 2205 | <<locked>> | 96% | 45,136 psi | 88% | 2490 fps | 96.3% |
| Hodgdon LilGun | <<locked>> | 90% | 42,859 psi | 83% | 2638 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 23,975 psi | 47% | 1601 fps | 100% |
| Lovex S040 | <<locked>> | 90% | 46,456 psi | 90% | 2556 fps | 99.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 23,090 psi | 45% | 1634 fps | 100% |
| SNPE Vectan BA6 1/2ᴾ | <<locked>> | 100% | 33,141 psi | 64% | 2320 fps | 99.4% |
| Vihtavuori N110ᴾ | <<locked>> | 100% | 42,598 psi | 83% | 2546 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 |
|---|---|---|---|---|---|---|
| ADI AR 2205 | <<locked>> | 94% | 42,337 psi | 82% | 2444 fps | 95.6% |
| Hodgdon LilGun | 21 gr | 80% | 29,849 psi | 58% | 2382 fps | 97.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 17,143 psi | 33% | 1427 fps | 100% |
| Lovex S040 | 18 gr | 80% | 34,011 psi | 66% | 2329 fps | 97.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 16,331 psi | 32% | 1453 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 84% | 21,437 psi | 42% | 2021 fps | 95% |
| Vihtavuori N110 | 18.2 gr | 84% | 26,397 psi | 51% | 2211 fps | 95.6% |
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 7 powders for 7.62 x 39 (.308) Russian loaded with the .308 | 88gr | Inceptor SRR. Hodgdon LilGun delivers the highest muzzle velocity at 2,638 fps; across all powders the maximum-charge window runs from 1,601 fps to 2,638 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 7 of the 7 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (355 MPa), the top charges use 45–90 %, leaving at least 10 % headroom. The 88.0 gr projectile in 0.308" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. Hodgdon TrailBoss, ReloadSwiss RS 14, SNPE Vectan BA6 1/2 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. Hodgdon LilGun, Lovex S040, Vihtavuori N110 rank at the top here: for 7.62 x 39 (.308) Russian with the .308 | 88gr | Inceptor SRR 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.