Load Specifications
Load data in caliber 7.65 x 25 Borchardt with .31 | 85gr | Prvi Partizan FMJ bullet and 43 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Herco, Baschieri & Pellagri 102 Pistol and Vihtavuori N32C Tin Star.
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.
A valid access license is required to use the Personalized Load Calculator.
You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 5.5"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate No. 2² | <<locked>> | 68% | 25,469 psi | 88% | 1312 fps | 99.1% |
| Accurate Solo 1000² | <<locked>> | 64% | 24,540 psi | 85% | 1214 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 72% | 25,005 psi | 86% | 1283 fps | 100% |
| ADI AP 100* | <<locked>> | 88% | 24,656 psi | 85% | 1358 fps | 90.3% |
| ADI APS 450² | <<locked>> | 64% | 25,092 psi | 87% | 1145 fps | 100% |
| ADI AS 30² | <<locked>> | 64% | 24,091 psi | 83% | 1175 fps | 100% |
| ADI AS 50N² | <<locked>> | 64% | 25,860 psi | 89% | 1250 fps | 100% |
| Alliant BE-86² | <<locked>> | 68% | 23,685 psi | 82% | 1253 fps | 100% |
| Alliant BULLSEYE² | <<locked>> | 64% | 25,628 psi | 88% | 1348 fps | 100% |
| Alliant Green Dot² | <<locked>> | 68% | 25,527 psi | 88% | 1250 fps | 100% |
| Alliant Herco | <<locked>> | 84% | 24,120 psi | 83% | 1325 fps | 99.8% |
| Alliant POWER PISTOL*² | <<locked>> | 72% | 24,279 psi | 84% | 1388 fps | 89.1% |
| Alliant RED DOT² | <<locked>> | 68% | 25,512 psi | 88% | 1220 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 72% | 25,048 psi | 86% | 1348 fps | 99.9% |
| Baschieri & Pellagri 100² | <<locked>> | 68% | 24,932 psi | 86% | 1230 fps | 100% |
| Baschieri & Pellagri 102 Pistol | <<locked>> | 84% | 23,786 psi | 82% | 1234 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 64% | 24,366 psi | 84% | 1247 fps | 100% |
| Hodgdon Clays² | <<locked>> | 72% | 24,961 psi | 86% | 1142 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 14,649 psi | 51% | 1001 fps | 100% |
| Hodgdon Universal² | <<locked>> | 64% | 23,975 psi | 83% | 1276 fps | 100% |
| Lovex S020² | <<locked>> | 64% | 23,743 psi | 82% | 1289 fps | 100% |
| Maxam CSB 1² | <<locked>> | 76% | 25,686 psi | 89% | 1289 fps | 100% |
| Maxam CSB 2² | <<locked>> | 72% | 25,092 psi | 87% | 1293 fps | 100% |
| Maxam CSB 3² | <<locked>> | 68% | 24,511 psi | 85% | 1247 fps | 100% |
| Maxam CSB 4² | <<locked>> | 64% | 23,192 psi | 80% | 1204 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 12,879 psi | 44% | 984 fps | 100% |
| ReloadSwiss RS 20² | <<locked>> | 76% | 25,889 psi | 89% | 1371 fps | 100% |
| Rottweil P 806 | <<locked>> | 84% | 25,106 psi | 87% | 1460 fps | 95.7% |
| SNPE Vectan A0² | <<locked>> | 76% | 25,759 psi | 89% | 1316 fps | 99.9% |
| SNPE Vectan A1² | <<locked>> | 64% | 24,294 psi | 84% | 1250 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 68% | 26,049 psi | 90% | 1299 fps | 100% |
| SNPE Vectan BA7 1/2 | <<locked>> | 80% | 25,193 psi | 87% | 1342 fps | 95.8% |
| SNPE Vectan BA9 1/2² | <<locked>> | 68% | 25,019 psi | 86% | 1289 fps | 100% |
| SNPE Vectan SP 2*² | <<locked>> | 72% | 25,831 psi | 89% | 1444 fps | 92.4% |
| Somchem MP200² | <<locked>> | 68% | 26,223 psi | 90% | 1355 fps | 99.8% |
| Somchem MS200² | <<locked>> | 68% | 24,033 psi | 83% | 1296 fps | 100% |
| Vihtavuori 3N37² | <<locked>> | 76% | 25,686 psi | 89% | 1381 fps | 97.1% |
| Vihtavuori N320² | <<locked>> | 64% | 24,932 psi | 86% | 1243 fps | 100% |
| Vihtavuori N32C Tin Star | <<locked>> | 96% | 24,947 psi | 86% | 1175 fps | 100% |
| Vihtavuori N330² | <<locked>> | 68% | 26,034 psi | 90% | 1322 fps | 100% |
| Vihtavuori N340² | <<locked>> | 72% | 25,599 psi | 88% | 1332 fps | 100% |
| Vihtavuori N350 | <<locked>> | 80% | 25,019 psi | 86% | 1365 fps | 97.1% |
| Winchester AutoComp ² | <<locked>> | 72% | 24,772 psi | 85% | 1296 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% | 19,624 psi | 68% | 1191 fps | 96.9% |
| Accurate Solo 1000² | <<locked>> | 60% | 21,480 psi | 74% | 1158 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 60% | 17,767 psi | 61% | 1138 fps | 100% |
| ADI AP 100* | <<locked>> | 80% | 20,305 psi | 70% | 1257 fps | 86.8% |
| ADI APS 450² | <<locked>> | 60% | 22,974 psi | 79% | 1109 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 22,002 psi | 76% | 1138 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 22,800 psi | 79% | 1198 fps | 100% |
| Alliant BE-86² | <<locked>> | 60% | 18,101 psi | 62% | 1142 fps | 100% |
| Alliant BULLSEYE² | <<locked>> | 60% | 22,713 psi | 78% | 1289 fps | 99.8% |
| Alliant Green Dot² | <<locked>> | 60% | 20,624 psi | 71% | 1161 fps | 100% |
| Alliant Herco*² | 4.2 gr | 60% | 13,010 psi | 45% | 1037 fps | 93.8% |
| Alliant POWER PISTOL*² | <<locked>> | 68% | 21,219 psi | 73% | 1316 fps | 86.5% |
| Alliant RED DOT² | <<locked>> | 60% | 20,247 psi | 70% | 1125 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 60% | 17,637 psi | 61% | 1178 fps | 97.7% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 20,146 psi | 69% | 1145 fps | 100% |
| Baschieri & Pellagri 102 Pistol² | 3.9 gr | 60% | 12,415 psi | 43% | 988 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 21,321 psi | 74% | 1194 fps | 100% |
| Hodgdon Clays² | <<locked>> | 60% | 19,029 psi | 66% | 1040 fps | 100% |
| Hodgdon TrailBoss² | <<locked>> | 60% | 6,860 psi | 24% | 738 fps | 99.2% |
| Hodgdon Universal² | <<locked>> | 60% | 21,292 psi | 73% | 1224 fps | 100% |
| Lovex S020² | <<locked>> | 60% | 20,929 psi | 72% | 1237 fps | 99.9% |
| Maxam CSB 1² | <<locked>> | 60% | 17,056 psi | 59% | 1115 fps | 100% |
| Maxam CSB 2² | <<locked>> | 60% | 17,840 psi | 62% | 1155 fps | 100% |
| Maxam CSB 3² | <<locked>> | 60% | 19,812 psi | 68% | 1158 fps | 100% |
| Maxam CSB 4² | <<locked>> | 60% | 21,190 psi | 73% | 1168 fps | 100% |
| ReloadSwiss RS 14² | <<locked>> | 60% | 6,280 psi | 22% | 722 fps | 95.1% |
| ReloadSwiss RS 20² | <<locked>> | 60% | 15,940 psi | 55% | 1155 fps | 98.4% |
| Rottweil P 806*² | <<locked>> | 68% | 14,373 psi | 50% | 1184 fps | 85.7% |
| SNPE Vectan A0² | <<locked>> | 60% | 16,897 psi | 58% | 1122 fps | 97% |
| SNPE Vectan A1² | <<locked>> | 60% | 20,885 psi | 72% | 1188 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 60% | 20,088 psi | 69% | 1181 fps | 100% |
| SNPE Vectan BA7 1/2*² | <<locked>> | 60% | 14,083 psi | 49% | 1063 fps | 86.3% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 19,711 psi | 68% | 1184 fps | 100% |
| SNPE Vectan SP 2*² | <<locked>> | 60% | 17,593 psi | 61% | 1243 fps | 85.3% |
| Somchem MP200² | <<locked>> | 60% | 20,305 psi | 70% | 1234 fps | 98.1% |
| Somchem MS200² | <<locked>> | 60% | 19,043 psi | 66% | 1188 fps | 99% |
| Vihtavuori 3N37*² | <<locked>> | 60% | 15,606 psi | 54% | 1138 fps | 89.6% |
| Vihtavuori N320² | <<locked>> | 60% | 21,785 psi | 75% | 1191 fps | 100% |
| Vihtavuori N32C Tin Star² | 3.1 gr | 60% | 11,269 psi | 39% | 899 fps | 100% |
| Vihtavuori N330² | <<locked>> | 60% | 20,189 psi | 70% | 1217 fps | 100% |
| Vihtavuori N340² | <<locked>> | 60% | 17,883 psi | 62% | 1168 fps | 98.1% |
| Vihtavuori N350*² | <<locked>> | 60% | 13,663 psi | 47% | 1079 fps | 87.6% |
| Winchester AutoComp ² | <<locked>> | 60% | 17,260 psi | 60% | 1135 fps | 99.8% |
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 43 powders for 7.65 x 25 Borchardt loaded with the .31 | 85gr | Prvi Partizan FMJ. Rottweil P 806 delivers the highest muzzle velocity at 1,460 fps; across all powders the maximum-charge window runs from 984 fps to 1,460 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 9 of the 43 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (200 MPa), the top charges use 44–90 %, leaving at least 10 % headroom. Hodgdon TrailBoss, 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. Alliant Herco, Baschieri & Pellagri 102 Pistol, Vihtavuori N32C Tin Star rank at the top here: for 7.65 x 25 Borchardt with the .31 | 85gr | Prvi Partizan FMJ they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AP 100, Alliant POWER PISTOL, SNPE Vectan SP 2 burn incompletely and react more sensitively to barrel length and temperature. ADI APS 450, Alliant Herco, Baschieri & Pellagri 102 Pistol 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.