Load Specifications
Load data in caliber 7.62 x 39 (M43) Russian with .312 | 180gr | Remington SP Core-Lokt bullet and 27 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Norma 200, ADI AR 2207 and SNPE Vectan SP 3.
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 1680 | <<locked>> | 88% | 45,513 psi | 88% | 1959 fps | 99.4% |
| Accurate 2015ᴾ | <<locked>> | 100% | 40,190 psi | 78% | 1962 fps | 97.9% |
| Accurate 2460ᴾ | <<locked>> | 100% | 44,135 psi | 86% | 2024 fps | 95.7% |
| Accurate LT-30 | <<locked>> | 94% | 45,890 psi | 89% | 1952 fps | 97.5% |
| ADI AR 2207 | <<locked>> | 92% | 43,947 psi | 85% | 1998 fps | 100% |
| ADI AR 2219 | <<locked>> | 96% | 45,542 psi | 88% | 2051 fps | 97.3% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 37,492 psi | 73% | 1978 fps | 99.3% |
| Alliant Reloder-10xᴾ | <<locked>> | 100% | 46,441 psi | 90% | 2057 fps | 99.6% |
| Alliant Reloder-7 | <<locked>> | 92% | 46,282 psi | 90% | 2001 fps | 99.7% |
| Baschieri & Pellagri 106 | <<locked>> | 94% | 43,714 psi | 85% | 1949 fps | 97.4% |
| Hodgdon H322 | <<locked>> | 98% | 43,932 psi | 85% | 2031 fps | 97% |
| Hodgdon H335 | <<locked>> | 98% | 44,773 psi | 87% | 2044 fps | 96% |
| Hodgdon H4198 | <<locked>> | 90% | 45,121 psi | 88% | 1952 fps | 96.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 30,458 psi | 59% | 1211 fps | 100% |
| IMR 4198 | <<locked>> | 98% | 46,514 psi | 90% | 2014 fps | 99.9% |
| IMR 4227 | <<locked>> | 86% | 45,397 psi | 88% | 1946 fps | 100% |
| Lovex S053 | <<locked>> | 86% | 44,179 psi | 86% | 1916 fps | 100% |
| Norma 200 | <<locked>> | 94% | 44,048 psi | 86% | 2014 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 30,255 psi | 59% | 1240 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 86% | 44,541 psi | 87% | 1969 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 90% | 45,861 psi | 89% | 1824 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 96% | 45,469 psi | 88% | 2054 fps | 96.2% |
| SNPE Vectan SP 3 | <<locked>> | 98% | 45,324 psi | 88% | 2028 fps | 98.2% |
| Vihtavuori N110 | <<locked>> | 82% | 46,412 psi | 90% | 1880 fps | 100% |
| Vihtavuori N120 | <<locked>> | 92% | 44,193 psi | 86% | 1965 fps | 100% |
| Vihtavuori N130ᴾ | <<locked>> | 100% | 45,252 psi | 88% | 1991 fps | 99.3% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 39,204 psi | 76% | 1913 fps | 97.4% |
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 1680 | <<locked>> | 80% | 35,099 psi | 68% | 1814 fps | 97.6% |
| Accurate 2015 | <<locked>> | 92% | 31,357 psi | 61% | 1821 fps | 95.5% |
| Accurate 2460 | <<locked>> | 98% | 41,423 psi | 80% | 1988 fps | 95% |
| Accurate LT-30 | <<locked>> | 86% | 36,201 psi | 70% | 1818 fps | 95.1% |
| ADI AR 2207 | 19.6 gr | 80% | 30,560 psi | 59% | 1798 fps | 99.5% |
| ADI AR 2219 | <<locked>> | 90% | 37,623 psi | 73% | 1936 fps | 95.2% |
| Alliant AR-Comp | <<locked>> | 88% | 26,020 psi | 51% | 1752 fps | 95.4% |
| Alliant Reloder-10x | <<locked>> | 82% | 26,963 psi | 52% | 1745 fps | 95.1% |
| Alliant Reloder-7 | <<locked>> | 80% | 32,285 psi | 63% | 1795 fps | 97.5% |
| Baschieri & Pellagri 106 | <<locked>> | 88% | 36,071 psi | 70% | 1841 fps | 95.4% |
| Hodgdon H322 | <<locked>> | 94% | 38,551 psi | 75% | 1952 fps | 95.5% |
| Hodgdon H335 | <<locked>> | 96% | 41,785 psi | 81% | 2001 fps | 95.2% |
| Hodgdon H4198 | <<locked>> | 86% | 40,030 psi | 78% | 1883 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 22,626 psi | 44% | 1083 fps | 100% |
| IMR 4198 | <<locked>> | 80% | 28,152 psi | 55% | 1716 fps | 96.3% |
| IMR 4227 | <<locked>> | 80% | 38,159 psi | 74% | 1847 fps | 99.7% |
| Lovex S053 | <<locked>> | 80% | 37,231 psi | 72% | 1824 fps | 100% |
| Norma 200 | 20.5 gr | 80% | 28,456 psi | 55% | 1765 fps | 96.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 22,191 psi | 43% | 1106 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 37,188 psi | 72% | 1867 fps | 99.6% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 34,998 psi | 68% | 1696 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 94% | 42,438 psi | 82% | 2011 fps | 95.4% |
| SNPE Vectan SP 3 | 21.8 gr | 88% | 33,533 psi | 65% | 1847 fps | 95% |
| Vihtavuori N110 | <<locked>> | 80% | 44,077 psi | 86% | 1854 fps | 100% |
| Vihtavuori N120 | <<locked>> | 80% | 30,763 psi | 60% | 1778 fps | 99.9% |
| Vihtavuori N130 | <<locked>> | 84% | 27,920 psi | 54% | 1719 fps | 95% |
| Vihtavuori N133 | <<locked>> | 94% | 32,880 psi | 64% | 1811 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 27 powders for 7.62 x 39 (M43) Russian loaded with the .312 | 180gr | Remington SP Core-Lokt. Alliant Reloder-10x delivers the highest muzzle velocity at 2,057 fps; across all powders the maximum-charge window runs from 1,211 fps to 2,057 fps. Accurate 2015 gives the best case fill at 100 %, and 27 of the 27 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (355 MPa), the top charges use 59–90 %, leaving at least 10 % headroom. The 180.0 gr projectile in 0.312" calls for a 1:6.0 twist; slower twists will usually not stabilise this weight. Accurate 2015, Accurate 2460, Alliant AR-Comp 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. Norma 200, ADI AR 2207, SNPE Vectan SP 3 rank at the top here: for 7.62 x 39 (M43) Russian with the .312 | 180gr | Remington SP Core-Lokt 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.