Load Specifications
Load data in caliber 7.65 x 25 Borchardt with .308 | 85gr | Sierra Sports Master bullet and 44 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Herco, Vihtavuori N32C Tin Star and Hodgdon TrailBoss.
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% | 23,438 psi | 81% | 1283 fps | 98.7% |
| Accurate Solo 1000² | <<locked>> | 64% | 24,714 psi | 85% | 1224 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 72% | 25,135 psi | 87% | 1293 fps | 100% |
| ADI AP 100* | <<locked>> | 88% | 25,222 psi | 87% | 1378 fps | 91.1% |
| ADI APS 450² | <<locked>> | 64% | 25,324 psi | 87% | 1155 fps | 100% |
| ADI AS 30² | <<locked>> | 64% | 24,366 psi | 84% | 1184 fps | 100% |
| ADI AS 50N² | <<locked>> | 64% | 26,063 psi | 90% | 1260 fps | 100% |
| Alliant BE-86² | <<locked>> | 68% | 23,685 psi | 82% | 1257 fps | 100% |
| Alliant Green Dot² | <<locked>> | 64% | 23,714 psi | 82% | 1224 fps | 100% |
| Alliant Herco | <<locked>> | 84% | 24,860 psi | 86% | 1345 fps | 99.9% |
| Alliant POWER PISTOL*² | <<locked>> | 72% | 24,947 psi | 86% | 1407 fps | 89.8% |
| Alliant RED DOT² | <<locked>> | 68% | 25,802 psi | 89% | 1230 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 72% | 25,150 psi | 87% | 1355 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 68% | 26,078 psi | 90% | 1253 fps | 100% |
| Baschieri & Pellagri 102 Pistol | <<locked>> | 84% | 24,613 psi | 85% | 1250 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 64% | 25,005 psi | 86% | 1263 fps | 100% |
| Hodgdon CFE Pistol² | <<locked>> | 68% | 25,295 psi | 87% | 1302 fps | 100% |
| Hodgdon Clays² | <<locked>> | 72% | 26,208 psi | 90% | 1168 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 14,881 psi | 51% | 1010 fps | 100% |
| Hodgdon Universal² | <<locked>> | 64% | 24,134 psi | 83% | 1286 fps | 100% |
| Lovex S020² | <<locked>> | 64% | 23,815 psi | 82% | 1296 fps | 100% |
| Maxam CSB 1² | <<locked>> | 72% | 23,859 psi | 82% | 1263 fps | 100% |
| Maxam CSB 2² | <<locked>> | 72% | 25,222 psi | 87% | 1299 fps | 100% |
| Maxam CSB 3² | <<locked>> | 68% | 24,685 psi | 85% | 1253 fps | 100% |
| Maxam CSB 4² | <<locked>> | 64% | 24,424 psi | 84% | 1230 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 13,126 psi | 45% | 994 fps | 100% |
| ReloadSwiss RS 20² | <<locked>> | 72% | 24,018 psi | 83% | 1342 fps | 100% |
| Rottweil P 806 | <<locked>> | 84% | 26,208 psi | 90% | 1486 fps | 96.4% |
| SNPE Vectan A0² | <<locked>> | 72% | 23,975 psi | 83% | 1289 fps | 99.8% |
| SNPE Vectan A1² | <<locked>> | 64% | 24,323 psi | 84% | 1257 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 68% | 26,049 psi | 90% | 1302 fps | 100% |
| SNPE Vectan BA7 1/2 | <<locked>> | 80% | 25,005 psi | 86% | 1345 fps | 96% |
| SNPE Vectan BA9 1/2² | <<locked>> | 68% | 26,020 psi | 90% | 1312 fps | 100% |
| SNPE Vectan SP 2*² | <<locked>> | 68% | 24,047 psi | 83% | 1411 fps | 91.5% |
| Somchem MP200² | <<locked>> | 64% | 23,583 psi | 81% | 1312 fps | 99.4% |
| Somchem MS200² | <<locked>> | 68% | 24,091 psi | 83% | 1302 fps | 100% |
| Vihtavuori 3N37² | <<locked>> | 72% | 23,917 psi | 82% | 1352 fps | 96.4% |
| Vihtavuori N105* | <<locked>> | 96% | 24,497 psi | 84% | 1447 fps | 88.3% |
| Vihtavuori N320² | <<locked>> | 64% | 25,164 psi | 87% | 1253 fps | 100% |
| Vihtavuori N32C Tin Star | <<locked>> | 96% | 25,005 psi | 86% | 1178 fps | 100% |
| Vihtavuori N330² | <<locked>> | 64% | 24,091 psi | 83% | 1296 fps | 100% |
| Vihtavuori N340² | <<locked>> | 68% | 23,743 psi | 82% | 1302 fps | 99.9% |
| Vihtavuori N350 | <<locked>> | 80% | 25,744 psi | 89% | 1388 fps | 97.6% |
| Winchester AutoComp ² | <<locked>> | 72% | 24,714 psi | 85% | 1299 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% | 20,624 psi | 71% | 1220 fps | 97.6% |
| Accurate Solo 1000² | <<locked>> | 60% | 21,741 psi | 75% | 1168 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 60% | 17,985 psi | 62% | 1148 fps | 100% |
| ADI AP 100*² | <<locked>> | 76% | 18,275 psi | 63% | 1211 fps | 85.1% |
| ADI APS 450² | <<locked>> | 60% | 23,235 psi | 80% | 1119 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 22,307 psi | 77% | 1152 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 23,047 psi | 79% | 1211 fps | 100% |
| Alliant BE-86² | <<locked>> | 60% | 18,956 psi | 65% | 1165 fps | 100% |
| Alliant Green Dot² | <<locked>> | 60% | 20,929 psi | 72% | 1171 fps | 100% |
| Alliant Herco*² | 4.3 gr | 60% | 13,169 psi | 45% | 1047 fps | 94.2% |
| Alliant POWER PISTOL*² | <<locked>> | 68% | 21,901 psi | 76% | 1339 fps | 87.4% |
| Alliant RED DOT² | <<locked>> | 60% | 20,610 psi | 71% | 1138 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 60% | 17,840 psi | 62% | 1188 fps | 97.9% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 20,363 psi | 70% | 1155 fps | 100% |
| Baschieri & Pellagri 102 Pistol² | <<locked>> | 60% | 12,604 psi | 43% | 997 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 21,988 psi | 76% | 1211 fps | 100% |
| Hodgdon CFE Pistol² | <<locked>> | 60% | 20,291 psi | 70% | 1207 fps | 100% |
| Hodgdon Clays² | <<locked>> | 60% | 19,319 psi | 67% | 1050 fps | 100% |
| Hodgdon TrailBoss² | 2.3 gr | 60% | 6,715 psi | 23% | 735 fps | 99.1% |
| Hodgdon Universal² | <<locked>> | 60% | 21,480 psi | 74% | 1234 fps | 100% |
| Lovex S020² | <<locked>> | 60% | 21,074 psi | 73% | 1243 fps | 99.9% |
| Maxam CSB 1² | <<locked>> | 60% | 17,274 psi | 60% | 1125 fps | 100% |
| Maxam CSB 2² | <<locked>> | 60% | 18,115 psi | 62% | 1165 fps | 100% |
| Maxam CSB 3² | <<locked>> | 60% | 20,044 psi | 69% | 1168 fps | 100% |
| Maxam CSB 4² | <<locked>> | 60% | 21,480 psi | 74% | 1178 fps | 100% |
| ReloadSwiss RS 14² | <<locked>> | 60% | 6,512 psi | 22% | 735 fps | 95.8% |
| ReloadSwiss RS 20² | <<locked>> | 60% | 16,128 psi | 56% | 1165 fps | 98.6% |
| Rottweil P 806*² | <<locked>> | 68% | 14,794 psi | 51% | 1204 fps | 86.6% |
| SNPE Vectan A0² | <<locked>> | 60% | 17,071 psi | 59% | 1129 fps | 97.3% |
| SNPE Vectan A1² | <<locked>> | 60% | 21,799 psi | 75% | 1211 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 60% | 20,929 psi | 72% | 1207 fps | 100% |
| SNPE Vectan BA7 1/2*² | <<locked>> | 60% | 14,663 psi | 51% | 1086 fps | 87.3% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 20,682 psi | 71% | 1211 fps | 100% |
| SNPE Vectan SP 2*² | <<locked>> | 60% | 17,666 psi | 61% | 1250 fps | 85.7% |
| Somchem MP200² | <<locked>> | 60% | 21,161 psi | 73% | 1260 fps | 98.6% |
| Somchem MS200² | <<locked>> | 60% | 19,160 psi | 66% | 1194 fps | 99.1% |
| Vihtavuori 3N37*² | <<locked>> | 60% | 16,273 psi | 56% | 1165 fps | 90.6% |
| Vihtavuori N105* | <<locked>> | 92% | 22,263 psi | 77% | 1394 fps | 86.2% |
| Vihtavuori N320² | <<locked>> | 60% | 22,075 psi | 76% | 1201 fps | 100% |
| Vihtavuori N32C Tin Star² | 3.1 gr | 60% | 10,994 psi | 38% | 892 fps | 100% |
| Vihtavuori N330² | <<locked>> | 60% | 20,421 psi | 70% | 1227 fps | 100% |
| Vihtavuori N340² | <<locked>> | 60% | 17,999 psi | 62% | 1175 fps | 98.3% |
| Vihtavuori N350*² | <<locked>> | 60% | 13,793 psi | 48% | 1086 fps | 88% |
| Winchester AutoComp ² | <<locked>> | 60% | 18,043 psi | 62% | 1161 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 6 powders for 7.65 x 25 Borchardt loaded with the .308 | 85gr | Sierra Sports Master. Rottweil P 806 delivers the highest muzzle velocity at 1,486 fps; across all powders the maximum-charge window runs from 994 fps to 1,486 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 6 of the 6 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (200 MPa), the top charges use 45–90 %, 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, Vihtavuori N32C Tin Star, Hodgdon TrailBoss rank at the top here: for 7.65 x 25 Borchardt with the .308 | 85gr | Sierra Sports Master they combine a high case fill with complete burn and sit in the upper velocity band. 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.