Load Specifications
Load data in caliber 7.65 x 25 Borchardt with .307 | 110gr | Prvi Partizan FMJ RN bullet and 38 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 No. 2² | <<locked>> | 64% | 24,410 psi | 84% | 1066 fps | 99.7% |
| Accurate Solo 1000² | <<locked>> | 64% | 25,860 psi | 89% | 1007 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 68% | 25,063 psi | 86% | 1053 fps | 100% |
| ADI AP 100* | <<locked>> | 84% | 24,091 psi | 83% | 1122 fps | 92.6% |
| Alliant BE-86² | <<locked>> | 68% | 25,208 psi | 87% | 1047 fps | 100% |
| Alliant Green Dot² | <<locked>> | 64% | 25,338 psi | 87% | 1014 fps | 100% |
| Alliant Herco | <<locked>> | 84% | 26,092 psi | 90% | 1122 fps | 100% |
| Alliant POWER PISTOL*² | <<locked>> | 72% | 25,962 psi | 90% | 1191 fps | 93% |
| Alliant RED DOT² | <<locked>> | 64% | 25,454 psi | 88% | 991 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 68% | 24,337 psi | 84% | 1096 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 64% | 24,178 psi | 83% | 994 fps | 100% |
| Baschieri & Pellagri 102 Pistol | <<locked>> | 84% | 25,730 psi | 89% | 1037 fps | 100% |
| Hodgdon Clays² | <<locked>> | 68% | 24,279 psi | 84% | 922 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 16,331 psi | 56% | 837 fps | 100% |
| Lovex S020² | <<locked>> | 64% | 25,802 psi | 89% | 1089 fps | 100% |
| Maxam CSB 1² | <<locked>> | 72% | 25,063 psi | 86% | 1047 fps | 100% |
| Maxam CSB 2² | <<locked>> | 68% | 24,918 psi | 86% | 1050 fps | 100% |
| Maxam CSB 3² | <<locked>> | 68% | 25,976 psi | 90% | 1037 fps | 100% |
| Maxam CSB 4² | <<locked>> | 64% | 26,063 psi | 90% | 1020 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 15,621 psi | 54% | 850 fps | 100% |
| ReloadSwiss RS 20² | <<locked>> | 72% | 24,801 psi | 86% | 1112 fps | 100% |
| Rottweil P 806 | <<locked>> | 80% | 25,266 psi | 87% | 1224 fps | 97.8% |
| SNPE Vectan A0² | <<locked>> | 72% | 25,933 psi | 89% | 1086 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 64% | 25,759 psi | 89% | 1047 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 64% | 24,845 psi | 86% | 1047 fps | 100% |
| SNPE Vectan BA7 1/2² | <<locked>> | 76% | 24,250 psi | 84% | 1099 fps | 97.2% |
| SNPE Vectan BA9 1/2² | <<locked>> | 64% | 24,294 psi | 84% | 1043 fps | 100% |
| SNPE Vectan SP 2*² | <<locked>> | 64% | 23,409 psi | 81% | 1155 fps | 93.5% |
| Somchem MP200² | <<locked>> | 64% | 25,077 psi | 86% | 1099 fps | 100% |
| Somchem MS200² | <<locked>> | 68% | 25,802 psi | 89% | 1093 fps | 100% |
| Vihtavuori 3N37² | <<locked>> | 72% | 25,875 psi | 89% | 1148 fps | 98.7% |
| Vihtavuori 3N38* | <<locked>> | 88% | 26,179 psi | 90% | 1184 fps | 87.9% |
| Vihtavuori N105* | <<locked>> | 92% | 24,178 psi | 83% | 1204 fps | 90.9% |
| Vihtavuori N32C Tin Star | <<locked>> | 92% | 25,773 psi | 89% | 961 fps | 100% |
| Vihtavuori N330² | <<locked>> | 64% | 25,773 psi | 89% | 1079 fps | 100% |
| Vihtavuori N340² | <<locked>> | 68% | 24,932 psi | 86% | 1083 fps | 100% |
| Vihtavuori N350² | <<locked>> | 76% | 24,598 psi | 85% | 1125 fps | 98.5% |
| Winchester AutoComp ² | <<locked>> | 68% | 24,091 psi | 83% | 1053 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% | 22,060 psi | 76% | 1027 fps | 99.3% |
| Accurate Solo 1000² | <<locked>> | 60% | 23,322 psi | 80% | 971 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 60% | 19,522 psi | 67% | 961 fps | 100% |
| ADI AP 100*² | <<locked>> | 68% | 16,259 psi | 56% | 951 fps | 85.7% |
| Alliant BE-86² | <<locked>> | 60% | 20,204 psi | 70% | 971 fps | 100% |
| Alliant Green Dot² | <<locked>> | 60% | 22,902 psi | 79% | 978 fps | 100% |
| Alliant Herco² | <<locked>> | 60% | 15,258 psi | 53% | 909 fps | 98% |
| Alliant POWER PISTOL*² | <<locked>> | 60% | 18,884 psi | 65% | 1043 fps | 87.4% |
| Alliant RED DOT² | <<locked>> | 60% | 22,858 psi | 79% | 951 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 60% | 20,320 psi | 70% | 1020 fps | 99.8% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 21,843 psi | 75% | 958 fps | 100% |
| Baschieri & Pellagri 102 Pistol² | <<locked>> | 60% | 14,910 psi | 51% | 856 fps | 100% |
| Hodgdon Clays² | <<locked>> | 60% | 20,639 psi | 71% | 869 fps | 100% |
| Hodgdon TrailBoss² | 1.8 gr | 60% | 8,470 psi | 29% | 633 fps | 100% |
| Lovex S020² | <<locked>> | 60% | 23,496 psi | 81% | 1053 fps | 100% |
| Maxam CSB 1² | <<locked>> | 60% | 18,855 psi | 65% | 945 fps | 100% |
| Maxam CSB 2² | <<locked>> | 60% | 20,566 psi | 71% | 984 fps | 100% |
| Maxam CSB 3² | <<locked>> | 60% | 21,292 psi | 73% | 968 fps | 100% |
| Maxam CSB 4² | <<locked>> | 60% | 23,583 psi | 81% | 984 fps | 100% |
| ReloadSwiss RS 14² | 1.9 gr | 60% | 8,485 psi | 29% | 646 fps | 99.7% |
| ReloadSwiss RS 20² | <<locked>> | 60% | 17,825 psi | 61% | 988 fps | 100% |
| Rottweil P 806*² | <<locked>> | 60% | 13,619 psi | 47% | 965 fps | 88.6% |
| SNPE Vectan A0² | <<locked>> | 60% | 18,985 psi | 65% | 965 fps | 99.4% |
| SNPE Vectan A1² | <<locked>> | 60% | 22,597 psi | 78% | 1001 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 60% | 21,727 psi | 75% | 997 fps | 100% |
| SNPE Vectan BA7 1/2*² | <<locked>> | 60% | 16,346 psi | 56% | 935 fps | 91.9% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 22,118 psi | 76% | 1010 fps | 100% |
| SNPE Vectan SP 2*² | <<locked>> | 60% | 19,899 psi | 69% | 1083 fps | 90.8% |
| Somchem MP200² | <<locked>> | 60% | 23,003 psi | 79% | 1066 fps | 99.9% |
| Somchem MS200² | <<locked>> | 60% | 20,595 psi | 71% | 1004 fps | 100% |
| Vihtavuori 3N37*² | <<locked>> | 60% | 17,854 psi | 62% | 994 fps | 94.6% |
| Vihtavuori 3N38* | <<locked>> | 84% | 23,467 psi | 81% | 1135 fps | 85.9% |
| Vihtavuori N105* | <<locked>> | 84% | 19,232 psi | 66% | 1099 fps | 86.4% |
| Vihtavuori N32C Tin Star² | 2.5 gr | 60% | 13,518 psi | 47% | 764 fps | 100% |
| Vihtavuori N330² | <<locked>> | 60% | 22,278 psi | 77% | 1027 fps | 100% |
| Vihtavuori N340² | <<locked>> | 60% | 19,740 psi | 68% | 994 fps | 99.8% |
| Vihtavuori N350*² | <<locked>> | 60% | 15,983 psi | 55% | 948 fps | 93.4% |
| Winchester AutoComp ² | <<locked>> | 60% | 19,638 psi | 68% | 974 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 38 powders for 7.65 x 25 Borchardt loaded with the .307 | 110gr | Prvi Partizan FMJ RN. Rottweil P 806 delivers the highest muzzle velocity at 1,224 fps; across all powders the maximum-charge window runs from 837 fps to 1,224 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 9 of the 38 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (200 MPa), the top charges use 54–90 %, 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, ReloadSwiss RS 14, Hodgdon TrailBoss rank at the top here: for 7.65 x 25 Borchardt with the .307 | 110gr | Prvi Partizan FMJ RN 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. Accurate No. 2, Accurate Solo 1000, Accurate Solo 1250 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.