Load Specifications
Load data in caliber 7.65 x 25 Borchardt with .308 | 110gr | Norma FMJ RRN bullet and 19 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 14 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 |
|---|---|---|---|---|---|---|
| ADI AP 100² | <<locked>> | 76% | 24,584 psi | 85% | 1194 fps | 95.3% |
| Alliant Herco² | <<locked>> | 72% | 24,149 psi | 83% | 1142 fps | 100% |
| Alliant POWER PISTOL² | <<locked>> | 64% | 26,020 psi | 90% | 1253 fps | 95.2% |
| Baschieri & Pellagri 102 Pistol² | <<locked>> | 76% | 25,585 psi | 88% | 1079 fps | 100% |
| Hodgdon Clays² | <<locked>> | 64% | 25,440 psi | 88% | 991 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 19,189 psi | 66% | 928 fps | 100% |
| Maxam CSB 1² | <<locked>> | 64% | 24,366 psi | 84% | 1086 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 18,260 psi | 63% | 942 fps | 100% |
| ReloadSwiss RS 20² | <<locked>> | 64% | 24,743 psi | 85% | 1158 fps | 100% |
| ReloadSwiss RS 24*² | <<locked>> | 64% | 23,656 psi | 82% | 1207 fps | 88.1% |
| Rottweil P 806² | <<locked>> | 68% | 23,380 psi | 81% | 1230 fps | 98.3% |
| SNPE Vectan A0² | <<locked>> | 64% | 24,424 psi | 84% | 1119 fps | 100% |
| SNPE Vectan BA7 1/2² | <<locked>> | 68% | 24,149 psi | 83% | 1158 fps | 98.7% |
| Vihtavuori 3N37² | <<locked>> | 64% | 25,019 psi | 86% | 1191 fps | 99.5% |
| Vihtavuori 3N38*² | <<locked>> | 76% | 23,902 psi | 82% | 1207 fps | 89.4% |
| Vihtavuori N105* | <<locked>> | 84% | 25,759 psi | 89% | 1299 fps | 94.8% |
| Vihtavuori N32C Tin Star | <<locked>> | 84% | 25,773 psi | 89% | 1010 fps | 100% |
| Vihtavuori N350² | <<locked>> | 68% | 24,134 psi | 83% | 1175 fps | 99.4% |
| Winchester AutoComp ² | <<locked>> | 64% | 25,962 psi | 90% | 1132 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 |
|---|---|---|---|---|---|---|
| ADI AP 100*² | <<locked>> | 60% | 16,244 psi | 56% | 1004 fps | 88.6% |
| Alliant Herco² | <<locked>> | 60% | 17,927 psi | 62% | 1017 fps | 99.9% |
| Alliant POWER PISTOL*² | <<locked>> | 60% | 22,887 psi | 79% | 1191 fps | 93.4% |
| Baschieri & Pellagri 102 Pistol² | <<locked>> | 60% | 17,347 psi | 60% | 942 fps | 100% |
| Hodgdon Clays² | <<locked>> | 60% | 22,495 psi | 78% | 948 fps | 100% |
| Hodgdon TrailBoss² | 2.4 gr | 60% | 9,674 psi | 33% | 705 fps | 100% |
| Maxam CSB 1² | <<locked>> | 60% | 22,626 psi | 78% | 1060 fps | 100% |
| ReloadSwiss RS 14² | 2.5 gr | 60% | 9,558 psi | 33% | 719 fps | 100% |
| ReloadSwiss RS 20² | <<locked>> | 60% | 22,118 psi | 76% | 1115 fps | 100% |
| ReloadSwiss RS 24*² | <<locked>> | 60% | 20,450 psi | 71% | 1135 fps | 85.3% |
| Rottweil P 806² | <<locked>> | 60% | 18,333 psi | 63% | 1122 fps | 95.6% |
| SNPE Vectan A0² | <<locked>> | 60% | 21,988 psi | 76% | 1076 fps | 100% |
| SNPE Vectan BA7 1/2² | <<locked>> | 60% | 19,363 psi | 67% | 1060 fps | 96.6% |
| Vihtavuori 3N37² | <<locked>> | 60% | 22,017 psi | 76% | 1135 fps | 98.6% |
| Vihtavuori 3N38*² | <<locked>> | 68% | 19,493 psi | 67% | 1109 fps | 85.5% |
| Vihtavuori N105*² | <<locked>> | 68% | 16,273 psi | 56% | 1076 fps | 86.2% |
| Vihtavuori N32C Tin Star² | <<locked>> | 60% | 15,693 psi | 54% | 843 fps | 100% |
| Vihtavuori N350² | <<locked>> | 60% | 19,653 psi | 68% | 1086 fps | 97.9% |
| Winchester AutoComp ² | <<locked>> | 60% | 23,627 psi | 81% | 1093 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 4 powders for 7.65 x 25 Borchardt loaded with the .308 | 110gr | Norma FMJ RRN. Vihtavuori N105 delivers the highest muzzle velocity at 1,299 fps; across all powders the maximum-charge window runs from 928 fps to 1,299 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 4 of the 4 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (200 MPa), the top charges use 63–89 %, leaving at least 11 % 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. ReloadSwiss RS 14, Hodgdon TrailBoss rank at the top here: for 7.65 x 25 Borchardt with the .308 | 110gr | Norma FMJ RRN they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Vihtavuori N105 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.