Load Specifications
Load data in caliber 7.65 x 25 Borchardt with .309 | 86gr | H&N RN HS bullet and 45 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Vihtavuori N32C Tin Star, Hodgdon TrailBoss and ReloadSwiss RS 14.
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>> | 64% | 23,873 psi | 82% | 1309 fps | 99.2% |
| Accurate Solo 1000² | <<locked>> | 64% | 24,685 psi | 85% | 1237 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 72% | 25,498 psi | 88% | 1312 fps | 100% |
| ADI AP 100* | <<locked>> | 88% | 25,295 psi | 87% | 1398 fps | 92% |
| ADI APS 450² | <<locked>> | 64% | 25,512 psi | 88% | 1171 fps | 100% |
| ADI AS 30² | <<locked>> | 64% | 24,120 psi | 83% | 1201 fps | 100% |
| ADI AS 50N² | <<locked>> | 64% | 25,498 psi | 88% | 1270 fps | 100% |
| Alliant BE-86² | <<locked>> | 68% | 23,540 psi | 81% | 1270 fps | 100% |
| Alliant Green Dot² | <<locked>> | 64% | 24,714 psi | 85% | 1247 fps | 100% |
| Alliant Herco | <<locked>> | 84% | 24,149 psi | 83% | 1348 fps | 100% |
| Alliant POWER PISTOL*² | <<locked>> | 72% | 25,193 psi | 87% | 1434 fps | 90.9% |
| Alliant RED DOT² | <<locked>> | 68% | 25,498 psi | 88% | 1243 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 72% | 25,802 psi | 89% | 1385 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 68% | 25,541 psi | 88% | 1263 fps | 100% |
| Baschieri & Pellagri 102 Pistol | <<locked>> | 84% | 24,294 psi | 84% | 1260 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 64% | 25,092 psi | 87% | 1276 fps | 100% |
| Hodgdon CFE Pistol² | <<locked>> | 68% | 25,106 psi | 87% | 1319 fps | 100% |
| Hodgdon Clays² | <<locked>> | 72% | 26,237 psi | 90% | 1181 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 14,228 psi | 49% | 1014 fps | 100% |
| Hodgdon Universal² | <<locked>> | 64% | 24,076 psi | 83% | 1302 fps | 100% |
| Lovex S020² | <<locked>> | 64% | 23,830 psi | 82% | 1316 fps | 100% |
| Maxam CSB 1² | <<locked>> | 72% | 24,120 psi | 83% | 1283 fps | 100% |
| Maxam CSB 2² | <<locked>> | 72% | 25,193 psi | 87% | 1316 fps | 100% |
| Maxam CSB 3² | <<locked>> | 68% | 25,266 psi | 87% | 1283 fps | 100% |
| Maxam CSB 4² | <<locked>> | 64% | 24,236 psi | 84% | 1243 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 12,662 psi | 44% | 1007 fps | 100% |
| ReloadSwiss RS 20² | <<locked>> | 72% | 24,047 psi | 83% | 1358 fps | 100% |
| Rottweil P 806 | <<locked>> | 84% | 26,179 psi | 90% | 1499 fps | 97% |
| SNPE Vectan A0² | <<locked>> | 72% | 24,091 psi | 83% | 1306 fps | 99.9% |
| SNPE Vectan A1² | <<locked>> | 64% | 24,511 psi | 85% | 1273 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 68% | 26,179 psi | 90% | 1322 fps | 100% |
| SNPE Vectan BA7 1/2 | <<locked>> | 80% | 25,875 psi | 89% | 1385 fps | 97.1% |
| SNPE Vectan BA9 1/2² | <<locked>> | 68% | 26,136 psi | 90% | 1329 fps | 100% |
| SNPE Vectan SP 2*² | <<locked>> | 68% | 23,888 psi | 82% | 1427 fps | 92.2% |
| Somchem MP200² | <<locked>> | 64% | 23,380 psi | 81% | 1325 fps | 99.6% |
| Somchem MS200² | <<locked>> | 68% | 24,134 psi | 83% | 1322 fps | 100% |
| Somchem S221*² | <<locked>> | 64% | 25,991 psi | 90% | 1424 fps | 88.8% |
| Vihtavuori 3N37² | <<locked>> | 72% | 24,105 psi | 83% | 1375 fps | 97.1% |
| Vihtavuori N105* | <<locked>> | 96% | 25,367 psi | 87% | 1486 fps | 90.1% |
| Vihtavuori N320² | <<locked>> | 64% | 24,772 psi | 85% | 1263 fps | 100% |
| Vihtavuori N32C Tin Star | <<locked>> | 96% | 24,874 psi | 86% | 1194 fps | 100% |
| Vihtavuori N330² | <<locked>> | 64% | 23,424 psi | 81% | 1299 fps | 100% |
| Vihtavuori N340² | <<locked>> | 68% | 23,728 psi | 82% | 1319 fps | 100% |
| Vihtavuori N350 | <<locked>> | 80% | 26,107 psi | 90% | 1407 fps | 98.2% |
| Winchester AutoComp ² | <<locked>> | 72% | 25,092 psi | 87% | 1322 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% | 20,218 psi | 70% | 1230 fps | 97.9% |
| Accurate Solo 1000² | <<locked>> | 60% | 21,799 psi | 75% | 1184 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 60% | 17,666 psi | 61% | 1158 fps | 100% |
| ADI AP 100*² | <<locked>> | 76% | 18,449 psi | 64% | 1237 fps | 86.3% |
| ADI APS 450² | <<locked>> | 60% | 23,525 psi | 81% | 1138 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 21,190 psi | 73% | 1148 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 22,611 psi | 78% | 1220 fps | 100% |
| Alliant BE-86² | <<locked>> | 60% | 18,159 psi | 63% | 1165 fps | 100% |
| Alliant Green Dot² | <<locked>> | 60% | 21,973 psi | 76% | 1198 fps | 100% |
| Alliant Herco*² | <<locked>> | 60% | 12,749 psi | 44% | 1056 fps | 94.3% |
| Alliant POWER PISTOL*² | <<locked>> | 64% | 19,421 psi | 67% | 1293 fps | 86% |
| Alliant RED DOT² | <<locked>> | 60% | 20,523 psi | 71% | 1155 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 60% | 17,782 psi | 61% | 1207 fps | 98.3% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 20,030 psi | 69% | 1165 fps | 100% |
| Baschieri & Pellagri 102 Pistol² | <<locked>> | 60% | 12,473 psi | 43% | 1010 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 22,147 psi | 76% | 1230 fps | 100% |
| Hodgdon CFE Pistol² | <<locked>> | 60% | 20,233 psi | 70% | 1224 fps | 100% |
| Hodgdon Clays² | <<locked>> | 60% | 19,609 psi | 68% | 1070 fps | 100% |
| Hodgdon TrailBoss² | 2.5 gr | 60% | 5,787 psi | 20% | 722 fps | 98% |
| Hodgdon Universal² | <<locked>> | 60% | 21,451 psi | 74% | 1253 fps | 100% |
| Lovex S020² | <<locked>> | 60% | 21,176 psi | 73% | 1263 fps | 100% |
| Maxam CSB 1² | <<locked>> | 60% | 16,882 psi | 58% | 1135 fps | 100% |
| Maxam CSB 2² | <<locked>> | 60% | 17,405 psi | 60% | 1168 fps | 100% |
| Maxam CSB 3² | <<locked>> | 60% | 19,841 psi | 68% | 1181 fps | 100% |
| Maxam CSB 4² | <<locked>> | 60% | 21,408 psi | 74% | 1194 fps | 100% |
| ReloadSwiss RS 14*² | 2.6 gr | 60% | 5,352 psi | 18% | 712 fps | 93.1% |
| ReloadSwiss RS 20² | <<locked>> | 60% | 16,273 psi | 56% | 1184 fps | 99% |
| Rottweil P 806*² | <<locked>> | 68% | 14,257 psi | 49% | 1198 fps | 86.5% |
| SNPE Vectan A0² | <<locked>> | 60% | 17,303 psi | 60% | 1155 fps | 98% |
| SNPE Vectan A1² | <<locked>> | 60% | 22,046 psi | 76% | 1230 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 60% | 21,205 psi | 73% | 1227 fps | 100% |
| SNPE Vectan BA7 1/2*² | <<locked>> | 60% | 14,330 psi | 49% | 1099 fps | 87.8% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 20,146 psi | 69% | 1217 fps | 100% |
| SNPE Vectan SP 2*² | <<locked>> | 60% | 17,579 psi | 61% | 1266 fps | 86.5% |
| Somchem MP200² | <<locked>> | 60% | 21,016 psi | 72% | 1276 fps | 99% |
| Somchem MS200² | <<locked>> | 60% | 19,305 psi | 67% | 1217 fps | 99.4% |
| Somchem S221*² | <<locked>> | 60% | 22,495 psi | 78% | 1348 fps | 86.1% |
| Vihtavuori 3N37*² | <<locked>> | 60% | 15,911 psi | 55% | 1171 fps | 91% |
| Vihtavuori N105* | <<locked>> | 92% | 22,307 psi | 77% | 1414 fps | 87.5% |
| Vihtavuori N320² | <<locked>> | 60% | 21,785 psi | 75% | 1211 fps | 100% |
| Vihtavuori N32C Tin Star² | 3.4 gr | 60% | 10,428 psi | 36% | 899 fps | 100% |
| Vihtavuori N330² | <<locked>> | 60% | 20,711 psi | 71% | 1247 fps | 100% |
| Vihtavuori N340² | <<locked>> | 60% | 18,101 psi | 62% | 1198 fps | 98.7% |
| Vihtavuori N350*² | <<locked>> | 60% | 13,576 psi | 47% | 1099 fps | 88.6% |
| Winchester AutoComp ² | <<locked>> | 60% | 17,129 psi | 59% | 1158 fps | 99.9% |
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 7 powders for 7.65 x 25 Borchardt loaded with the .309 | 86gr | H&N RN HS. Rottweil P 806 delivers the highest muzzle velocity at 1,499 fps; across all powders the maximum-charge window runs from 1,007 fps to 1,499 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 7 of the 7 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. Vihtavuori N32C Tin Star, Hodgdon TrailBoss, ReloadSwiss RS 14 rank at the top here: for 7.65 x 25 Borchardt with the .309 | 86gr | H&N RN HS they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AP 100 burn incompletely and react more sensitively to barrel length and temperature. Hodgdon TrailBoss, ReloadSwiss RS 14, Vihtavuori N32C Tin Star 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.