Load Specifications
Load data in caliber 9 x 25 Dillon with .355 | 124gr | Speer HPSB GD bullet and 55 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Herco, Baschieri & Pellagri 102 Pistol and Vihtavuori N32C Tin Star.
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"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate No. 2² | <<locked>> | 72% | 32,300 psi | 89% | 1371 fps | 100% |
| Accurate Solo 1000² | <<locked>> | 72% | 31,633 psi | 87% | 1266 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 76% | 30,574 psi | 84% | 1312 fps | 100% |
| ADI AP 100* | <<locked>> | 92% | 29,907 psi | 82% | 1411 fps | 94.6% |
| ADI AP 70N² | <<locked>> | 64% | 32,256 psi | 89% | 1348 fps | 100% |
| ADI APS 350² | <<locked>> | 68% | 30,763 psi | 85% | 1142 fps | 100% |
| ADI APS 450² | <<locked>> | 68% | 29,660 psi | 82% | 1161 fps | 100% |
| ADI AS 30² | <<locked>> | 72% | 31,473 psi | 87% | 1230 fps | 100% |
| ADI AS 50N² | <<locked>> | 68% | 30,908 psi | 85% | 1270 fps | 100% |
| Alliant BE-86² | <<locked>> | 76% | 32,213 psi | 89% | 1325 fps | 100% |
| Alliant BULLSEYE² | <<locked>> | 68% | 32,242 psi | 89% | 1401 fps | 100% |
| Alliant Green Dot² | <<locked>> | 72% | 31,270 psi | 86% | 1280 fps | 100% |
| Alliant Herco | <<locked>> | 92% | 31,850 psi | 88% | 1401 fps | 100% |
| Alliant POWER PISTOL*² | <<locked>> | 76% | 30,197 psi | 83% | 1453 fps | 93.9% |
| Alliant RED DOT² | <<locked>> | 72% | 30,313 psi | 84% | 1237 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 64% | 32,256 psi | 89% | 1404 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 76% | 30,676 psi | 85% | 1385 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 72% | 30,530 psi | 84% | 1257 fps | 100% |
| Baschieri & Pellagri 102 Pistol | <<locked>> | 92% | 31,749 psi | 88% | 1289 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 68% | 30,255 psi | 83% | 1280 fps | 100% |
| Hodgdon Clays | <<locked>> | 80% | 32,416 psi | 89% | 1198 fps | 100% |
| Hodgdon HS-6² | <<locked>> | 64% | 31,807 psi | 88% | 1427 fps | 98.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 15,795 psi | 44% | 974 fps | 100% |
| Hodgdon Universal² | <<locked>> | 68% | 29,878 psi | 82% | 1312 fps | 100% |
| Lovex S020² | <<locked>> | 68% | 29,399 psi | 81% | 1329 fps | 100% |
| Maxam CSB 1 | <<locked>> | 80% | 31,154 psi | 86% | 1316 fps | 100% |
| Maxam CSB 2² | <<locked>> | 76% | 31,459 psi | 87% | 1325 fps | 100% |
| Maxam CSB 3² | <<locked>> | 76% | 32,793 psi | 90% | 1312 fps | 100% |
| Maxam CSB 4² | <<locked>> | 72% | 31,937 psi | 88% | 1280 fps | 100% |
| Maxam CSB 5² | <<locked>> | 68% | 32,285 psi | 89% | 1234 fps | 100% |
| Ramshot Silhouette² | <<locked>> | 64% | 31,865 psi | 88% | 1404 fps | 100% |
| ReloadSwiss RS 12² | <<locked>> | 64% | 29,675 psi | 82% | 1283 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 14,446 psi | 40% | 974 fps | 100% |
| ReloadSwiss RS 20² | <<locked>> | 76% | 28,950 psi | 80% | 1358 fps | 100% |
| ReloadSwiss RS 24* | <<locked>> | 80% | 31,357 psi | 86% | 1470 fps | 88.6% |
| Rottweil P 806 | <<locked>> | 84% | 29,805 psi | 82% | 1483 fps | 98.2% |
| SNPE Vectan A0 | <<locked>> | 80% | 31,937 psi | 88% | 1362 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 72% | 32,764 psi | 90% | 1322 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 72% | 31,763 psi | 88% | 1329 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 64% | 30,458 psi | 84% | 1171 fps | 100% |
| SNPE Vectan BA7 1/2 | <<locked>> | 84% | 30,313 psi | 84% | 1385 fps | 98.6% |
| SNPE Vectan BA9 1/2² | <<locked>> | 72% | 30,661 psi | 85% | 1319 fps | 100% |
| SNPE Vectan SP 2² | <<locked>> | 72% | 30,269 psi | 83% | 1470 fps | 95.7% |
| Somchem MP200² | <<locked>> | 72% | 32,750 psi | 90% | 1407 fps | 100% |
| Somchem MS200² | <<locked>> | 76% | 32,140 psi | 89% | 1375 fps | 100% |
| Somchem S221*² | <<locked>> | 68% | 32,721 psi | 90% | 1473 fps | 92.7% |
| Vihtavuori 3N37² | <<locked>> | 76% | 29,414 psi | 81% | 1394 fps | 99% |
| Vihtavuori 3N38* | <<locked>> | 92% | 30,139 psi | 83% | 1440 fps | 88.8% |
| Vihtavuori N105*ᴾ | <<locked>> | 100% | 31,256 psi | 86% | 1522 fps | 93.7% |
| Vihtavuori N320² | <<locked>> | 68% | 30,879 psi | 85% | 1273 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 29,805 psi | 82% | 1188 fps | 100% |
| Vihtavuori N330² | <<locked>> | 72% | 32,735 psi | 90% | 1358 fps | 100% |
| Vihtavuori N340² | <<locked>> | 76% | 32,285 psi | 89% | 1378 fps | 100% |
| Vihtavuori N350 | <<locked>> | 84% | 31,444 psi | 87% | 1421 fps | 99.5% |
| Winchester AutoComp ² | <<locked>> | 76% | 29,834 psi | 82% | 1319 fps | 100% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 5"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate No. 2² | <<locked>> | 60% | 22,017 psi | 61% | 1194 fps | 98.8% |
| Accurate Solo 1000² | <<locked>> | 60% | 23,743 psi | 65% | 1145 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 60% | 19,841 psi | 55% | 1129 fps | 100% |
| ADI AP 100*² | <<locked>> | 72% | 18,086 psi | 50% | 1152 fps | 86% |
| ADI AP 70N² | <<locked>> | 60% | 28,413 psi | 78% | 1293 fps | 100% |
| ADI APS 350² | <<locked>> | 60% | 25,527 psi | 70% | 1070 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 24,874 psi | 69% | 1089 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 23,409 psi | 65% | 1109 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 24,613 psi | 68% | 1175 fps | 100% |
| Alliant BE-86² | <<locked>> | 60% | 20,436 psi | 56% | 1135 fps | 100% |
| Alliant BULLSEYE² | <<locked>> | 60% | 25,338 psi | 70% | 1283 fps | 100% |
| Alliant Green Dot² | <<locked>> | 60% | 22,902 psi | 63% | 1148 fps | 100% |
| Alliant Herco² | 6.1 gr | 60% | 14,591 psi | 40% | 1037 fps | 96.4% |
| Alliant POWER PISTOL*² | <<locked>> | 60% | 18,840 psi | 52% | 1201 fps | 85.6% |
| Alliant RED DOT² | <<locked>> | 60% | 22,321 psi | 62% | 1109 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 60% | 29,124 psi | 80% | 1352 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 60% | 19,624 psi | 54% | 1171 fps | 99.2% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 22,263 psi | 61% | 1132 fps | 100% |
| Baschieri & Pellagri 102 Pistol² | 5.7 gr | 60% | 14,156 psi | 39% | 981 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 23,743 psi | 65% | 1181 fps | 100% |
| Hodgdon Clays² | <<locked>> | 60% | 20,218 psi | 56% | 1014 fps | 100% |
| Hodgdon HS-6² | <<locked>> | 60% | 27,934 psi | 77% | 1358 fps | 97.1% |
| Hodgdon TrailBoss² | <<locked>> | 60% | 7,513 psi | 21% | 728 fps | 99.9% |
| Hodgdon Universal² | <<locked>> | 60% | 23,482 psi | 65% | 1207 fps | 100% |
| Lovex S020² | <<locked>> | 60% | 22,843 psi | 63% | 1217 fps | 100% |
| Maxam CSB 1² | <<locked>> | 60% | 18,463 psi | 51% | 1096 fps | 100% |
| Maxam CSB 2² | <<locked>> | 60% | 20,044 psi | 55% | 1138 fps | 100% |
| Maxam CSB 3² | <<locked>> | 60% | 21,553 psi | 59% | 1138 fps | 100% |
| Maxam CSB 4² | <<locked>> | 60% | 23,322 psi | 64% | 1148 fps | 100% |
| Maxam CSB 5² | <<locked>> | 60% | 26,281 psi | 72% | 1148 fps | 100% |
| Ramshot Silhouette² | <<locked>> | 60% | 27,702 psi | 76% | 1335 fps | 99.9% |
| ReloadSwiss RS 12² | <<locked>> | 60% | 26,585 psi | 73% | 1237 fps | 100% |
| ReloadSwiss RS 14² | <<locked>> | 60% | 6,875 psi | 19% | 712 fps | 97.3% |
| ReloadSwiss RS 20² | <<locked>> | 60% | 18,101 psi | 50% | 1152 fps | 99.7% |
| ReloadSwiss RS 24*² | <<locked>> | 76% | 27,659 psi | 76% | 1401 fps | 86.3% |
| Rottweil P 806*² | <<locked>> | 64% | 14,721 psi | 41% | 1138 fps | 87.2% |
| SNPE Vectan A0² | <<locked>> | 60% | 18,608 psi | 51% | 1112 fps | 98.7% |
| SNPE Vectan A1² | <<locked>> | 60% | 23,206 psi | 64% | 1175 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 60% | 22,365 psi | 62% | 1178 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 60% | 27,209 psi | 75% | 1125 fps | 100% |
| SNPE Vectan BA7 1/2*² | <<locked>> | 60% | 15,751 psi | 43% | 1070 fps | 89.8% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 22,292 psi | 61% | 1181 fps | 100% |
| SNPE Vectan SP 2*² | <<locked>> | 60% | 20,175 psi | 56% | 1257 fps | 89.2% |
| Somchem MP200² | <<locked>> | 60% | 22,655 psi | 62% | 1230 fps | 99.5% |
| Somchem MS200² | <<locked>> | 60% | 20,697 psi | 57% | 1171 fps | 99.8% |
| Somchem S221*² | <<locked>> | 60% | 24,613 psi | 68% | 1316 fps | 87.8% |
| Vihtavuori 3N37*² | <<locked>> | 60% | 18,028 psi | 50% | 1155 fps | 93.3% |
| Vihtavuori 3N38* | <<locked>> | 88% | 27,108 psi | 75% | 1385 fps | 87% |
| Vihtavuori N105* | <<locked>> | 88% | 22,046 psi | 61% | 1335 fps | 87.2% |
| Vihtavuori N320² | <<locked>> | 60% | 24,366 psi | 67% | 1175 fps | 100% |
| Vihtavuori N32C Tin Star² | 4.4 gr | 60% | 12,241 psi | 34% | 876 fps | 100% |
| Vihtavuori N330² | <<locked>> | 60% | 22,727 psi | 63% | 1204 fps | 100% |
| Vihtavuori N340² | <<locked>> | 60% | 19,943 psi | 55% | 1161 fps | 99.4% |
| Vihtavuori N350*² | <<locked>> | 60% | 15,331 psi | 42% | 1079 fps | 91.1% |
| Winchester AutoComp ² | <<locked>> | 60% | 19,232 psi | 53% | 1129 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 55 powders for 9 x 25 Dillon loaded with the .355 | 124gr | Speer HPSB GD. Vihtavuori N105 delivers the highest muzzle velocity at 1,522 fps; across all powders the maximum-charge window runs from 974 fps to 1,522 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 15 of the 55 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (250 MPa), the top charges use 40–90 %, leaving at least 10 % headroom. Hodgdon TrailBoss, ReloadSwiss RS 14, Vihtavuori N105 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, Baschieri & Pellagri 102 Pistol, Vihtavuori N32C Tin Star rank at the top here: for 9 x 25 Dillon with the .355 | 124gr | Speer HPSB GD they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AP 100, Alliant POWER PISTOL, ReloadSwiss RS 24 burn incompletely and react more sensitively to barrel length and temperature. ADI APS 350, ADI APS 450, ADI AS 30 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.