Load Specifications
Load data in caliber 7.62 x 39 (M43) Russian with .313 | 100gr | H&N WC KB Match bullet and 9 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon LilGun, Accurate No. 11 FS and Lovex S040.
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: 20"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate No. 11 FS | <<locked>> | 96% | 46,035 psi | 89% | 2612 fps | 97.5% |
| ADI AR 2205 | <<locked>> | 98% | 46,282 psi | 90% | 2540 fps | 98.9% |
| Hodgdon LilGun | <<locked>> | 92% | 44,309 psi | 86% | 2689 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 23,032 psi | 45% | 1560 fps | 100% |
| Lovex S040 | <<locked>> | 90% | 45,078 psi | 88% | 2548 fps | 100% |
| Lovex S053ᴾ | <<locked>> | 100% | 33,997 psi | 66% | 2437 fps | 96.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 21,553 psi | 42% | 1593 fps | 100% |
| SNPE Vectan BA6 1/2ᴾ | <<locked>> | 100% | 31,923 psi | 62% | 2322 fps | 100% |
| Vihtavuori N110ᴾ | <<locked>> | 100% | 41,437 psi | 80% | 2558 fps | 100% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 20"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate No. 11 FS | 22.4 gr | 90% | 37,130 psi | 72% | 2469 fps | 95.4% |
| ADI AR 2205 | <<locked>> | 86% | 31,154 psi | 61% | 2277 fps | 95.6% |
| Hodgdon LilGun | 20.1 gr | 80% | 27,746 psi | 54% | 2401 fps | 99.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 15,577 psi | 30% | 1393 fps | 100% |
| Lovex S040 | 17.2 gr | 80% | 32,489 psi | 63% | 2335 fps | 99.3% |
| Lovex S053 | <<locked>> | 96% | 30,081 psi | 58% | 2358 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 14,402 psi | 28% | 1414 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 17,564 psi | 34% | 1957 fps | 96.6% |
| Vihtavuori N110 | <<locked>> | 80% | 21,350 psi | 41% | 2141 fps | 97% |
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 9 powders for 7.62 x 39 (M43) Russian loaded with the .313 | 100gr | H&N WC KB Match. Hodgdon LilGun delivers the highest muzzle velocity at 2,689 fps; across all powders the maximum-charge window runs from 1,560 fps to 2,689 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 9 of the 9 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (355 MPa), the top charges use 42–90 %, leaving at least 10 % headroom. Hodgdon TrailBoss, Lovex S053, 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. Hodgdon LilGun, Accurate No. 11 FS, Lovex S040 rank at the top here: for 7.62 x 39 (M43) Russian with the .313 | 100gr | H&N WC KB Match 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.