Load Specifications
Load data in caliber 7.62 x 39 (.308) Russian with .308 | 135gr | Alaska Bullet Works Kodiak SP SPBC bullet and 20 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 1680 | <<locked>> | 94% | 45,745 psi | 89% | 2149 fps | 95.7% |
| Accurate No. 11 FS | <<locked>> | 82% | 45,600 psi | 89% | 2149 fps | 99.3% |
| ADI AR 2205 | <<locked>> | 84% | 44,425 psi | 86% | 2070 fps | 99.9% |
| ADI AR 2207ᴾ | <<locked>> | 100% | 45,324 psi | 88% | 2234 fps | 99.3% |
| Alliant Reloder-7 | <<locked>> | 98% | 45,832 psi | 89% | 2195 fps | 96.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 28,921 psi | 56% | 1348 fps | 100% |
| IMR 4198ᴾ | <<locked>> | 100% | 41,278 psi | 80% | 2129 fps | 95.8% |
| IMR 4227 | <<locked>> | 92% | 45,498 psi | 88% | 2156 fps | 98.3% |
| Lovex D060 | <<locked>> | 84% | 44,338 psi | 86% | 2149 fps | 96.5% |
| Lovex D063 | <<locked>> | 82% | 46,296 psi | 90% | 2169 fps | 97.1% |
| Lovex S053 | <<locked>> | 94% | 46,557 psi | 90% | 2172 fps | 100% |
| Norma 200ᴾ | <<locked>> | 100% | 42,279 psi | 82% | 2192 fps | 96.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 28,471 psi | 55% | 1381 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 92% | 44,556 psi | 87% | 2175 fps | 98% |
| Shooters World Blackout | <<locked>> | 82% | 46,296 psi | 90% | 2169 fps | 97.1% |
| Shooters World Buffalo Rifle | <<locked>> | 84% | 44,338 psi | 86% | 2149 fps | 96.5% |
| Shooters World SOCOM | <<locked>> | 84% | 44,556 psi | 87% | 2129 fps | 97.3% |
| SNPE Vectan BA6 1/2 | <<locked>> | 96% | 45,107 psi | 88% | 2051 fps | 100% |
| Vihtavuori N110 | <<locked>> | 88% | 46,325 psi | 90% | 2119 fps | 100% |
| Vihtavuori N120ᴾ | <<locked>> | 100% | 45,527 psi | 88% | 2208 fps | 99.8% |
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>> | 92% | 43,062 psi | 84% | 2110 fps | 95% |
| Accurate No. 11 FS | <<locked>> | 80% | 42,482 psi | 83% | 2106 fps | 98.9% |
| ADI AR 2205 | <<locked>> | 80% | 39,465 psi | 77% | 1998 fps | 99.5% |
| ADI AR 2207 | 21.4 gr | 86% | 29,472 psi | 57% | 1959 fps | 95.2% |
| Alliant Reloder-7 | <<locked>> | 94% | 40,219 psi | 78% | 2110 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 21,103 psi | 41% | 1204 fps | 100% |
| IMR 4198 | <<locked>> | 98% | 38,972 psi | 76% | 2090 fps | 95% |
| IMR 4227 | <<locked>> | 82% | 33,895 psi | 66% | 1965 fps | 95.4% |
| Lovex D060 | <<locked>> | 80% | 39,436 psi | 77% | 2064 fps | 95.2% |
| Lovex D063 | <<locked>> | 80% | 43,105 psi | 84% | 2119 fps | 96.4% |
| Lovex S053 | 19.1 gr | 80% | 30,937 psi | 60% | 1916 fps | 97.8% |
| Norma 200 | <<locked>> | 98% | 39,784 psi | 77% | 2152 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 20,523 psi | 40% | 1227 fps | 100% |
| ReloadSwiss RS 36 | 21.8 gr | 84% | 34,722 psi | 67% | 2014 fps | 95.5% |
| Shooters World Blackout | <<locked>> | 80% | 43,105 psi | 84% | 2119 fps | 96.4% |
| Shooters World Buffalo Rifle | <<locked>> | 80% | 39,436 psi | 77% | 2064 fps | 95.2% |
| Shooters World SOCOM | <<locked>> | 80% | 38,595 psi | 75% | 2037 fps | 95.8% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 29,472 psi | 57% | 1818 fps | 100% |
| Vihtavuori N110 | <<locked>> | 80% | 36,767 psi | 71% | 1988 fps | 100% |
| Vihtavuori N120 | <<locked>> | 82% | 26,542 psi | 52% | 1867 fps | 95.2% |
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 20 powders for 7.62 x 39 (.308) Russian loaded with the .308 | 135gr | Alaska Bullet Works Kodiak SP SPBC. ADI AR 2207 delivers the highest muzzle velocity at 2,234 fps; across all powders the maximum-charge window runs from 1,348 fps to 2,234 fps. ADI AR 2207 gives the best case fill at 100 %, and 20 of the 20 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (355 MPa), the top charges use 55–90 %, leaving at least 10 % headroom. The 135.0 gr projectile in 0.308" calls for a 1:16.0 twist; slower twists will usually not stabilise this weight. ADI AR 2207, 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. ReloadSwiss RS 36, Lovex S053, ADI AR 2207 rank at the top here: for 7.62 x 39 (.308) Russian with the .308 | 135gr | Alaska Bullet Works Kodiak SP SPBC 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.