Load Specifications
Load data in caliber 7.65 x 25 Borchardt with .308 | 110gr | Speer Varmint Hollow Point bullet and 28 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, 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 |
|---|---|---|---|---|---|---|
| Accurate Solo 1250² | <<locked>> | 68% | 26,237 psi | 90% | 1093 fps | 100% |
| ADI AP 100* | <<locked>> | 80% | 24,047 psi | 83% | 1148 fps | 93.7% |
| Alliant BE-86² | <<locked>> | 64% | 24,845 psi | 86% | 1063 fps | 100% |
| Alliant Herco² | <<locked>> | 76% | 23,685 psi | 82% | 1106 fps | 100% |
| Alliant POWER PISTOL*² | <<locked>> | 68% | 26,034 psi | 90% | 1217 fps | 94% |
| Alliant RED DOT² | <<locked>> | 64% | 26,150 psi | 90% | 1020 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 64% | 24,337 psi | 84% | 1119 fps | 100% |
| Baschieri & Pellagri 102 Pistol | <<locked>> | 80% | 26,208 psi | 90% | 1063 fps | 100% |
| Hodgdon Clays² | <<locked>> | 68% | 25,889 psi | 89% | 968 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 17,651 psi | 61% | 876 fps | 100% |
| Maxam CSB 1² | <<locked>> | 68% | 25,077 psi | 86% | 1070 fps | 100% |
| Maxam CSB 2² | <<locked>> | 64% | 24,207 psi | 83% | 1060 fps | 100% |
| Maxam CSB 3² | <<locked>> | 64% | 25,019 psi | 86% | 1047 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 16,839 psi | 58% | 892 fps | 100% |
| ReloadSwiss RS 20² | <<locked>> | 68% | 24,642 psi | 85% | 1132 fps | 100% |
| ReloadSwiss RS 24*² | <<locked>> | 72% | 25,860 psi | 89% | 1214 fps | 88% |
| Rottweil P 806² | <<locked>> | 76% | 25,483 psi | 88% | 1247 fps | 98.4% |
| SNPE Vectan A0² | <<locked>> | 68% | 24,598 psi | 85% | 1089 fps | 100% |
| SNPE Vectan BA7 1/2² | <<locked>> | 76% | 26,005 psi | 90% | 1155 fps | 98.6% |
| SNPE Vectan SP 2² | <<locked>> | 64% | 25,498 psi | 88% | 1220 fps | 95.6% |
| Somchem MS200² | <<locked>> | 64% | 24,598 psi | 85% | 1096 fps | 100% |
| Vihtavuori 3N37² | <<locked>> | 68% | 25,005 psi | 86% | 1158 fps | 98.9% |
| Vihtavuori 3N38* | <<locked>> | 80% | 23,177 psi | 80% | 1155 fps | 87.1% |
| Vihtavuori N105* | <<locked>> | 88% | 24,352 psi | 84% | 1237 fps | 92.4% |
| Vihtavuori N32C Tin Star | <<locked>> | 88% | 25,672 psi | 89% | 981 fps | 100% |
| Vihtavuori N340² | <<locked>> | 64% | 24,685 psi | 85% | 1106 fps | 100% |
| Vihtavuori N350² | <<locked>> | 72% | 23,902 psi | 82% | 1138 fps | 98.8% |
| Winchester AutoComp ² | <<locked>> | 64% | 23,815 psi | 82% | 1070 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 Solo 1250² | <<locked>> | 60% | 20,972 psi | 72% | 1007 fps | 100% |
| ADI AP 100*² | <<locked>> | 64% | 16,157 psi | 56% | 971 fps | 86.9% |
| Alliant BE-86² | <<locked>> | 60% | 22,089 psi | 76% | 1020 fps | 100% |
| Alliant Herco² | <<locked>> | 60% | 16,215 psi | 56% | 951 fps | 99% |
| Alliant POWER PISTOL*² | <<locked>> | 60% | 20,218 psi | 70% | 1099 fps | 89.9% |
| Alliant RED DOT² | <<locked>> | 60% | 23,728 psi | 82% | 988 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 60% | 21,524 psi | 74% | 1066 fps | 100% |
| Baschieri & Pellagri 102 Pistol² | <<locked>> | 60% | 16,027 psi | 55% | 896 fps | 100% |
| Hodgdon Clays² | <<locked>> | 60% | 21,350 psi | 74% | 902 fps | 100% |
| Hodgdon TrailBoss² | 2 gr | 60% | 8,833 psi | 30% | 656 fps | 100% |
| Maxam CSB 1² | <<locked>> | 60% | 20,218 psi | 70% | 991 fps | 100% |
| Maxam CSB 2² | <<locked>> | 60% | 22,162 psi | 76% | 1027 fps | 100% |
| Maxam CSB 3² | <<locked>> | 60% | 22,858 psi | 79% | 1014 fps | 100% |
| ReloadSwiss RS 14² | 2.1 gr | 60% | 8,789 psi | 30% | 673 fps | 100% |
| ReloadSwiss RS 20² | <<locked>> | 60% | 19,957 psi | 69% | 1050 fps | 100% |
| ReloadSwiss RS 24*² | <<locked>> | 68% | 23,438 psi | 81% | 1165 fps | 86.2% |
| Rottweil P 806*² | <<locked>> | 60% | 15,476 psi | 53% | 1030 fps | 91.9% |
| SNPE Vectan A0² | <<locked>> | 60% | 20,015 psi | 69% | 1007 fps | 99.9% |
| SNPE Vectan BA7 1/2*² | <<locked>> | 60% | 17,535 psi | 60% | 988 fps | 94% |
| SNPE Vectan SP 2*² | <<locked>> | 60% | 22,104 psi | 76% | 1155 fps | 93.6% |
| Somchem MS200² | <<locked>> | 60% | 22,655 psi | 78% | 1063 fps | 100% |
| Vihtavuori 3N37² | <<locked>> | 60% | 19,986 psi | 69% | 1063 fps | 96.8% |
| Vihtavuori 3N38*² | <<locked>> | 76% | 20,929 psi | 72% | 1109 fps | 85.1% |
| Vihtavuori N105*² | <<locked>> | 76% | 17,260 psi | 60% | 1073 fps | 85.6% |
| Vihtavuori N32C Tin Star² | 2.8 gr | 60% | 14,402 psi | 50% | 797 fps | 100% |
| Vihtavuori N340² | <<locked>> | 60% | 21,770 psi | 75% | 1053 fps | 100% |
| Vihtavuori N350² | <<locked>> | 60% | 17,492 psi | 60% | 1007 fps | 95.6% |
| Winchester AutoComp ² | <<locked>> | 60% | 21,248 psi | 73% | 1024 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 | Speer Varmint Hollow Point. Vihtavuori N105 delivers the highest muzzle velocity at 1,237 fps; across all powders the maximum-charge window runs from 876 fps to 1,237 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 58–89 %, 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. Vihtavuori N32C Tin Star, ReloadSwiss RS 14, Hodgdon TrailBoss rank at the top here: for 7.65 x 25 Borchardt with the .308 | 110gr | Speer Varmint Hollow Point 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.