Load Specifications
Load data in caliber 7.65 x 25 Borchardt with .308 | 110gr | Norma SPRN bullet and 31 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 Solo 1250² | <<locked>> | 64% | 23,250 psi | 80% | 1043 fps | 100% |
| ADI AP 100* | <<locked>> | 84% | 26,107 psi | 90% | 1184 fps | 94.7% |
| Alliant BE-86² | <<locked>> | 64% | 24,163 psi | 83% | 1050 fps | 100% |
| Alliant Herco | <<locked>> | 80% | 25,759 psi | 89% | 1138 fps | 100% |
| Alliant POWER PISTOL*² | <<locked>> | 68% | 25,454 psi | 88% | 1204 fps | 93.6% |
| Alliant UNIQUE² | <<locked>> | 64% | 23,627 psi | 81% | 1102 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 64% | 25,817 psi | 89% | 1037 fps | 100% |
| Baschieri & Pellagri 102 Pistol | <<locked>> | 80% | 25,512 psi | 88% | 1050 fps | 100% |
| Hodgdon CFE Pistol² | <<locked>> | 64% | 25,759 psi | 89% | 1089 fps | 100% |
| Hodgdon Clays² | <<locked>> | 68% | 26,179 psi | 90% | 968 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 17,854 psi | 62% | 879 fps | 100% |
| Maxam CSB 1² | <<locked>> | 68% | 24,323 psi | 84% | 1056 fps | 100% |
| Maxam CSB 2² | <<locked>> | 64% | 24,439 psi | 84% | 1060 fps | 100% |
| Maxam CSB 3² | <<locked>> | 64% | 25,338 psi | 87% | 1050 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 16,288 psi | 56% | 879 fps | 100% |
| ReloadSwiss RS 20² | <<locked>> | 68% | 24,903 psi | 86% | 1135 fps | 100% |
| ReloadSwiss RS 24*² | <<locked>> | 72% | 26,223 psi | 90% | 1217 fps | 88.1% |
| Rottweil P 806² | <<locked>> | 76% | 25,019 psi | 86% | 1240 fps | 98.2% |
| SNPE Vectan A0² | <<locked>> | 68% | 24,831 psi | 86% | 1089 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 64% | 25,817 psi | 89% | 1083 fps | 100% |
| SNPE Vectan BA7 1/2² | <<locked>> | 72% | 23,757 psi | 82% | 1115 fps | 97.7% |
| SNPE Vectan BA9 1/2² | <<locked>> | 64% | 25,643 psi | 88% | 1083 fps | 100% |
| SNPE Vectan SP 2² | <<locked>> | 64% | 24,976 psi | 86% | 1207 fps | 95.2% |
| Somchem MS200² | <<locked>> | 64% | 24,918 psi | 86% | 1099 fps | 100% |
| Vihtavuori 3N37² | <<locked>> | 68% | 24,439 psi | 84% | 1148 fps | 98.7% |
| Vihtavuori 3N38* | <<locked>> | 84% | 25,875 psi | 89% | 1204 fps | 88.9% |
| Vihtavuori N105* | <<locked>> | 88% | 23,931 psi | 83% | 1227 fps | 92% |
| Vihtavuori N32C Tin Star | <<locked>> | 88% | 24,918 psi | 86% | 968 fps | 100% |
| Vihtavuori N340² | <<locked>> | 64% | 23,946 psi | 83% | 1089 fps | 100% |
| Vihtavuori N350² | <<locked>> | 72% | 24,192 psi | 83% | 1142 fps | 98.9% |
| Winchester AutoComp ² | <<locked>> | 68% | 25,933 psi | 89% | 1099 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% | 21,205 psi | 73% | 1010 fps | 100% |
| ADI AP 100*² | <<locked>> | 64% | 15,751 psi | 54% | 958 fps | 86.3% |
| Alliant BE-86² | <<locked>> | 60% | 22,321 psi | 77% | 1024 fps | 100% |
| Alliant Herco² | <<locked>> | 60% | 16,360 psi | 56% | 951 fps | 99% |
| Alliant POWER PISTOL*² | <<locked>> | 60% | 20,465 psi | 71% | 1102 fps | 90% |
| Alliant UNIQUE² | <<locked>> | 60% | 21,756 psi | 75% | 1070 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 23,627 psi | 81% | 1004 fps | 100% |
| Baschieri & Pellagri 102 Pistol² | <<locked>> | 60% | 15,490 psi | 53% | 883 fps | 100% |
| Hodgdon CFE Pistol² | <<locked>> | 60% | 23,859 psi | 82% | 1060 fps | 100% |
| Hodgdon Clays² | <<locked>> | 60% | 21,582 psi | 74% | 902 fps | 100% |
| Hodgdon TrailBoss² | 2 gr | 60% | 8,876 psi | 31% | 659 fps | 100% |
| Maxam CSB 1² | <<locked>> | 60% | 20,407 psi | 70% | 991 fps | 100% |
| Maxam CSB 2² | <<locked>> | 60% | 22,379 psi | 77% | 1030 fps | 100% |
| Maxam CSB 3² | <<locked>> | 60% | 23,119 psi | 80% | 1017 fps | 100% |
| ReloadSwiss RS 14² | 2.1 gr | 60% | 8,833 psi | 30% | 673 fps | 100% |
| ReloadSwiss RS 20² | <<locked>> | 60% | 19,290 psi | 67% | 1037 fps | 100% |
| ReloadSwiss RS 24*² | <<locked>> | 68% | 23,032 psi | 79% | 1155 fps | 85.7% |
| Rottweil P 806*² | <<locked>> | 60% | 15,200 psi | 52% | 1024 fps | 91.5% |
| SNPE Vectan A0² | <<locked>> | 60% | 20,247 psi | 70% | 1010 fps | 99.9% |
| SNPE Vectan BA 9² | <<locked>> | 60% | 23,873 psi | 82% | 1053 fps | 100% |
| SNPE Vectan BA7 1/2*² | <<locked>> | 60% | 17,114 psi | 59% | 974 fps | 93.6% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 23,612 psi | 81% | 1053 fps | 100% |
| SNPE Vectan SP 2*² | <<locked>> | 60% | 22,365 psi | 77% | 1158 fps | 93.7% |
| Somchem MS200² | <<locked>> | 60% | 21,959 psi | 76% | 1050 fps | 100% |
| Vihtavuori 3N37² | <<locked>> | 60% | 19,508 psi | 67% | 1050 fps | 96.5% |
| Vihtavuori 3N38* | <<locked>> | 80% | 23,496 psi | 81% | 1161 fps | 87.2% |
| Vihtavuori N105*² | <<locked>> | 76% | 17,448 psi | 60% | 1076 fps | 85.6% |
| Vihtavuori N32C Tin Star² | 2.7 gr | 60% | 13,808 psi | 48% | 781 fps | 100% |
| Vihtavuori N340² | <<locked>> | 60% | 22,031 psi | 76% | 1056 fps | 100% |
| Vihtavuori N350² | <<locked>> | 60% | 16,926 psi | 58% | 994 fps | 95.1% |
| Winchester AutoComp ² | <<locked>> | 60% | 20,697 psi | 71% | 1014 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 5 powders for 7.65 x 25 Borchardt loaded with the .308 | 110gr | Norma SPRN. Vihtavuori N105 delivers the highest muzzle velocity at 1,227 fps; across all powders the maximum-charge window runs from 879 fps to 1,227 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 5 of the 5 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (200 MPa), the top charges use 56–90 %, 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 .308 | 110gr | Norma SPRN they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AP 100, 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.