Load Specifications
Load data in caliber 7.63 Mauser with .312 | 85gr | Speer JHP bullet and 57 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are SNPE Vectan BA7 1/2, Alliant Herco and Baschieri & Pellagri 102 Pistol.
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 ≥ 60% and propellant combustion ≥ 80%. 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: 5.5"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate No. 2² | <<locked>> | 72% | 32,561 psi | 86% | 1483 fps | 100% |
| Accurate Solo 1000² | <<locked>> | 72% | 32,605 psi | 86% | 1385 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 76% | 31,111 psi | 83% | 1427 fps | 100% |
| ADI AP 100 | <<locked>> | 96% | 33,881 psi | 90% | 1588 fps | 96.3% |
| ADI AP 70N² | <<locked>> | 64% | 32,010 psi | 85% | 1453 fps | 100% |
| ADI APS 350² | <<locked>> | 72% | 33,982 psi | 90% | 1283 fps | 100% |
| ADI APS 450² | <<locked>> | 72% | 32,445 psi | 86% | 1299 fps | 100% |
| ADI AS 30² | <<locked>> | 72% | 31,778 psi | 84% | 1339 fps | 100% |
| ADI AS 50N² | <<locked>> | 72% | 33,953 psi | 90% | 1421 fps | 100% |
| Alliant BE-86² | <<locked>> | 76% | 31,952 psi | 85% | 1424 fps | 100% |
| Alliant BULLSEYE² | <<locked>> | 68% | 31,792 psi | 84% | 1506 fps | 100% |
| Alliant Green Dot² | <<locked>> | 72% | 31,415 psi | 83% | 1388 fps | 100% |
| Alliant Herco | <<locked>> | 92% | 31,981 psi | 85% | 1509 fps | 100% |
| Alliant POWER PISTOL*² | <<locked>> | 76% | 30,937 psi | 82% | 1578 fps | 94.3% |
| Alliant RED DOT² | <<locked>> | 76% | 33,431 psi | 89% | 1385 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 64% | 32,358 psi | 86% | 1516 fps | 100% |
| Alliant UNIQUE | <<locked>> | 80% | 34,113 psi | 90% | 1549 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 72% | 31,401 psi | 83% | 1371 fps | 100% |
| Baschieri & Pellagri 102 Pistol | <<locked>> | 92% | 31,807 psi | 84% | 1391 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 68% | 30,676 psi | 81% | 1381 fps | 100% |
| Hodgdon Clays | <<locked>> | 80% | 31,981 psi | 85% | 1293 fps | 100% |
| Hodgdon HS-6² | <<locked>> | 64% | 32,445 psi | 86% | 1542 fps | 98.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 15,925 psi | 42% | 1060 fps | 100% |
| Hodgdon Universal² | <<locked>> | 72% | 32,982 psi | 87% | 1467 fps | 100% |
| Lovex S011² | <<locked>> | 64% | 33,011 psi | 88% | 1421 fps | 100% |
| Lovex S020² | <<locked>> | 72% | 33,533 psi | 89% | 1496 fps | 100% |
| Maxam CSB 1 | <<locked>> | 80% | 32,227 psi | 85% | 1434 fps | 100% |
| Maxam CSB 2² | <<locked>> | 76% | 31,401 psi | 83% | 1427 fps | 100% |
| Maxam CSB 3² | <<locked>> | 76% | 33,011 psi | 88% | 1421 fps | 100% |
| Maxam CSB 4² | <<locked>> | 72% | 32,256 psi | 86% | 1391 fps | 100% |
| Maxam CSB 5² | <<locked>> | 68% | 32,590 psi | 86% | 1339 fps | 100% |
| Ramshot Silhouette² | <<locked>> | 64% | 32,358 psi | 86% | 1519 fps | 100% |
| ReloadSwiss RS 12² | <<locked>> | 68% | 33,547 psi | 89% | 1440 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 14,663 psi | 39% | 1063 fps | 100% |
| ReloadSwiss RS 20 | <<locked>> | 80% | 32,880 psi | 87% | 1526 fps | 100% |
| ReloadSwiss RS 24* | <<locked>> | 80% | 31,662 psi | 84% | 1581 fps | 89% |
| Rottweil P 801² | <<locked>> | 64% | 33,808 psi | 90% | 1407 fps | 100% |
| Rottweil P 806 | <<locked>> | 84% | 30,676 psi | 81% | 1601 fps | 98.6% |
| SNPE Vectan A0 | <<locked>> | 80% | 32,227 psi | 85% | 1470 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 72% | 32,750 psi | 87% | 1427 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 72% | 31,734 psi | 84% | 1434 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 68% | 33,475 psi | 89% | 1312 fps | 100% |
| SNPE Vectan BA7 1/2 | <<locked>> | 84% | 31,314 psi | 83% | 1506 fps | 98.9% |
| SNPE Vectan BA9 1/2² | <<locked>> | 72% | 30,603 psi | 81% | 1424 fps | 100% |
| SNPE Vectan SP 2² | <<locked>> | 72% | 30,951 psi | 82% | 1591 fps | 96.1% |
| Somchem MP200² | <<locked>> | 72% | 32,663 psi | 87% | 1516 fps | 100% |
| Somchem MS200² | <<locked>> | 76% | 32,924 psi | 87% | 1496 fps | 100% |
| Somchem S221*² | <<locked>> | 68% | 32,837 psi | 87% | 1578 fps | 92.9% |
| Vihtavuori 3N37 | <<locked>> | 80% | 33,475 psi | 89% | 1568 fps | 99.7% |
| Vihtavuori 3N38* | <<locked>> | 96% | 34,069 psi | 90% | 1614 fps | 91.2% |
| Vihtavuori N105*ᴾ | <<locked>> | 100% | 32,358 psi | 86% | 1647 fps | 94.4% |
| Vihtavuori N320² | <<locked>> | 68% | 30,182 psi | 80% | 1365 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 29,602 psi | 79% | 1276 fps | 100% |
| Vihtavuori N330² | <<locked>> | 72% | 33,257 psi | 88% | 1473 fps | 100% |
| Vihtavuori N340² | <<locked>> | 76% | 32,648 psi | 87% | 1493 fps | 100% |
| Vihtavuori N350 | <<locked>> | 84% | 32,256 psi | 86% | 1545 fps | 99.7% |
| Winchester AutoComp | <<locked>> | 80% | 34,069 psi | 90% | 1483 fps | 100% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 5.5"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate No. 2² | <<locked>> | 60% | 21,973 psi | 58% | 1293 fps | 98.7% |
| Accurate Solo 1000² | <<locked>> | 60% | 23,931 psi | 63% | 1247 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 60% | 19,798 psi | 53% | 1224 fps | 100% |
| ADI AP 100*² | <<locked>> | 72% | 18,550 psi | 49% | 1257 fps | 86.5% |
| ADI AP 70N² | <<locked>> | 60% | 28,253 psi | 75% | 1394 fps | 100% |
| ADI APS 350² | <<locked>> | 60% | 25,353 psi | 67% | 1158 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 24,598 psi | 65% | 1178 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 23,917 psi | 63% | 1214 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 25,150 psi | 67% | 1283 fps | 100% |
| Alliant BE-86² | <<locked>> | 60% | 20,769 psi | 55% | 1237 fps | 100% |
| Alliant BULLSEYE² | <<locked>> | 60% | 25,338 psi | 67% | 1388 fps | 100% |
| Alliant Green Dot² | <<locked>> | 60% | 23,090 psi | 61% | 1247 fps | 100% |
| Alliant Herco² | 5 gr | 60% | 14,359 psi | 38% | 1115 fps | 96.1% |
| Alliant POWER PISTOL*² | <<locked>> | 60% | 18,985 psi | 50% | 1296 fps | 85.6% |
| Alliant RED DOT² | <<locked>> | 60% | 22,466 psi | 60% | 1207 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 60% | 28,616 psi | 76% | 1453 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 60% | 20,044 psi | 53% | 1280 fps | 99.3% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 22,234 psi | 59% | 1224 fps | 100% |
| Baschieri & Pellagri 102 Pistol² | 4.7 gr | 60% | 14,040 psi | 37% | 1060 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 24,120 psi | 64% | 1280 fps | 100% |
| Hodgdon Clays² | <<locked>> | 60% | 20,088 psi | 53% | 1096 fps | 100% |
| Hodgdon HS-6² | <<locked>> | 60% | 28,442 psi | 75% | 1473 fps | 97.3% |
| Hodgdon TrailBoss² | <<locked>> | 60% | 7,353 psi | 20% | 784 fps | 99.8% |
| Hodgdon Universal² | <<locked>> | 60% | 23,989 psi | 64% | 1319 fps | 100% |
| Lovex S011² | <<locked>> | 60% | 29,907 psi | 79% | 1378 fps | 100% |
| Lovex S020² | <<locked>> | 60% | 23,235 psi | 62% | 1322 fps | 100% |
| Maxam CSB 1² | <<locked>> | 60% | 18,971 psi | 50% | 1198 fps | 100% |
| Maxam CSB 2² | <<locked>> | 60% | 20,146 psi | 53% | 1237 fps | 100% |
| Maxam CSB 3² | <<locked>> | 60% | 21,248 psi | 56% | 1227 fps | 100% |
| Maxam CSB 4² | <<locked>> | 60% | 22,785 psi | 60% | 1237 fps | 100% |
| Maxam CSB 5² | <<locked>> | 60% | 26,310 psi | 70% | 1247 fps | 100% |
| Ramshot Silhouette² | <<locked>> | 60% | 28,137 psi | 75% | 1447 fps | 100% |
| ReloadSwiss RS 12² | <<locked>> | 60% | 26,760 psi | 71% | 1339 fps | 100% |
| ReloadSwiss RS 14² | <<locked>> | 60% | 7,063 psi | 19% | 784 fps | 97.4% |
| ReloadSwiss RS 20² | <<locked>> | 60% | 18,202 psi | 48% | 1247 fps | 99.7% |
| ReloadSwiss RS 24*² | <<locked>> | 76% | 27,862 psi | 74% | 1506 fps | 86.6% |
| Rottweil P 801² | <<locked>> | 60% | 29,878 psi | 79% | 1352 fps | 100% |
| Rottweil P 806*² | <<locked>> | 64% | 15,243 psi | 40% | 1237 fps | 88% |
| SNPE Vectan A0² | <<locked>> | 60% | 19,029 psi | 50% | 1217 fps | 98.9% |
| SNPE Vectan A1² | <<locked>> | 60% | 23,598 psi | 63% | 1280 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 60% | 22,727 psi | 60% | 1280 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 60% | 27,398 psi | 73% | 1224 fps | 100% |
| SNPE Vectan BA7 1/2*² | 5.9 gr | 60% | 15,853 psi | 42% | 1158 fps | 89.8% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 22,147 psi | 59% | 1276 fps | 100% |
| SNPE Vectan SP 2*² | <<locked>> | 60% | 20,030 psi | 53% | 1345 fps | 89% |
| Somchem MP200² | <<locked>> | 60% | 22,843 psi | 61% | 1332 fps | 99.5% |
| Somchem MS200² | <<locked>> | 60% | 21,263 psi | 56% | 1280 fps | 99.9% |
| Somchem S221*² | <<locked>> | 60% | 25,019 psi | 66% | 1424 fps | 88.3% |
| Vihtavuori 3N37*² | <<locked>> | 60% | 18,115 psi | 48% | 1247 fps | 93.3% |
| Vihtavuori 3N38* | <<locked>> | 88% | 27,659 psi | 73% | 1496 fps | 87.6% |
| Vihtavuori N105* | <<locked>> | 84% | 19,957 psi | 53% | 1375 fps | 85.1% |
| Vihtavuori N320² | <<locked>> | 60% | 24,265 psi | 64% | 1273 fps | 100% |
| Vihtavuori N32C Tin Star² | <<locked>> | 60% | 12,502 psi | 33% | 958 fps | 100% |
| Vihtavuori N330² | <<locked>> | 60% | 22,887 psi | 61% | 1306 fps | 100% |
| Vihtavuori N340² | <<locked>> | 60% | 20,059 psi | 53% | 1260 fps | 99.5% |
| Vihtavuori N350*² | <<locked>> | 60% | 15,780 psi | 42% | 1181 fps | 91.5% |
| Winchester AutoComp ² | <<locked>> | 60% | 19,653 psi | 52% | 1230 fps | 100% |
Recommended = one of the top powders for this cartridge and bullet combination.
* not dangerous but load has suboptimal powder burnt with possible characteristics such as extensive muzzle flash or inaccurate loads.
² fill rate low - you might want to consider using a filler to ensure proper ignition.
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 57 powders for 7.63 Mauser loaded with the .312 | 85gr | Speer JHP. Vihtavuori N105 delivers the highest muzzle velocity at 1,647 fps; across all powders the maximum-charge window runs from 1,060 fps to 1,647 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 19 of the 57 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (260 MPa), the top charges use 39–90 %, leaving at least 10 % headroom. Hodgdon TrailBoss, ReloadSwiss RS 14, Vihtavuori N105 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. SNPE Vectan BA7 1/2, Alliant Herco, Baschieri & Pellagri 102 Pistol rank at the top here: for 7.63 Mauser with the .312 | 85gr | Speer JHP they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Alliant POWER PISTOL, ReloadSwiss RS 24, Somchem S221 burn incompletely and react more sensitively to barrel length and temperature. Alliant Herco, Baschieri & Pellagri 102 Pistol, Hodgdon Clays 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.