Load Specifications
Load data in caliber 9 x 25 Dillon with .355 | 124gr | Geco HEXAGON bullet and 56 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Rottweil P 806, SNPE Vectan BA7 1/2 and Alliant Herco.
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% | 31,053 psi | 86% | 1339 fps | 100% |
| Accurate Solo 1000² | <<locked>> | 72% | 30,922 psi | 85% | 1247 fps | 100% |
| Accurate Solo 1250 | <<locked>> | 80% | 32,663 psi | 90% | 1332 fps | 100% |
| ADI AP 100 | <<locked>> | 96% | 32,256 psi | 89% | 1437 fps | 95.3% |
| ADI AP 70N² | <<locked>> | 64% | 30,908 psi | 85% | 1319 fps | 100% |
| ADI APS 350² | <<locked>> | 68% | 30,734 psi | 85% | 1132 fps | 100% |
| ADI APS 450² | <<locked>> | 72% | 32,387 psi | 89% | 1188 fps | 100% |
| ADI AS 30² | <<locked>> | 72% | 30,690 psi | 85% | 1211 fps | 100% |
| ADI AS 50N² | <<locked>> | 72% | 32,808 psi | 90% | 1286 fps | 100% |
| Alliant BE-86² | <<locked>> | 76% | 31,328 psi | 86% | 1302 fps | 100% |
| Alliant BULLSEYE² | <<locked>> | 68% | 30,908 psi | 85% | 1368 fps | 100% |
| Alliant Green Dot² | <<locked>> | 72% | 30,603 psi | 84% | 1260 fps | 100% |
| Alliant Herco | <<locked>> | 92% | 31,111 psi | 86% | 1378 fps | 100% |
| Alliant POWER PISTOL* | <<locked>> | 80% | 32,372 psi | 89% | 1480 fps | 94.5% |
| Alliant RED DOT² | <<locked>> | 76% | 32,097 psi | 89% | 1250 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 64% | 31,836 psi | 88% | 1388 fps | 100% |
| Alliant UNIQUE | <<locked>> | 80% | 32,677 psi | 90% | 1407 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 72% | 29,965 psi | 83% | 1240 fps | 100% |
| Baschieri & Pellagri 102 Pistol | <<locked>> | 92% | 30,864 psi | 85% | 1270 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 68% | 29,733 psi | 82% | 1263 fps | 100% |
| Hodgdon Clays | <<locked>> | 80% | 31,778 psi | 88% | 1178 fps | 100% |
| Hodgdon HS-6² | <<locked>> | 64% | 30,632 psi | 84% | 1398 fps | 97.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 15,635 psi | 43% | 965 fps | 100% |
| Hodgdon Universal² | <<locked>> | 72% | 31,734 psi | 88% | 1332 fps | 100% |
| Lovex S011² | <<locked>> | 64% | 32,460 psi | 90% | 1296 fps | 100% |
| Lovex S020² | <<locked>> | 72% | 32,372 psi | 89% | 1362 fps | 100% |
| Maxam CSB 1 | <<locked>> | 80% | 30,806 psi | 85% | 1302 fps | 100% |
| Maxam CSB 2² | <<locked>> | 76% | 30,037 psi | 83% | 1296 fps | 100% |
| Maxam CSB 3² | <<locked>> | 76% | 31,444 psi | 87% | 1286 fps | 100% |
| Maxam CSB 4² | <<locked>> | 72% | 30,400 psi | 84% | 1250 fps | 100% |
| Maxam CSB 5² | <<locked>> | 68% | 31,401 psi | 87% | 1211 fps | 100% |
| Ramshot Silhouette² | <<locked>> | 64% | 30,313 psi | 84% | 1368 fps | 100% |
| ReloadSwiss RS 12² | <<locked>> | 68% | 32,329 psi | 89% | 1309 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 14,272 psi | 39% | 965 fps | 100% |
| ReloadSwiss RS 20 | <<locked>> | 80% | 30,908 psi | 85% | 1378 fps | 100% |
| ReloadSwiss RS 24* | <<locked>> | 80% | 29,863 psi | 82% | 1430 fps | 87.3% |
| Rottweil P 806 | <<locked>> | 88% | 31,633 psi | 87% | 1509 fps | 98.5% |
| SNPE Vectan A0 | <<locked>> | 80% | 30,966 psi | 85% | 1335 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 72% | 31,807 psi | 88% | 1302 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 72% | 30,792 psi | 85% | 1306 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 68% | 32,387 psi | 89% | 1188 fps | 100% |
| SNPE Vectan BA7 1/2 | <<locked>> | 88% | 32,590 psi | 90% | 1411 fps | 98.9% |
| SNPE Vectan BA9 1/2² | <<locked>> | 76% | 32,634 psi | 90% | 1339 fps | 100% |
| SNPE Vectan SP 2² | <<locked>> | 76% | 32,430 psi | 89% | 1496 fps | 96.3% |
| Somchem MP200² | <<locked>> | 72% | 31,067 psi | 86% | 1371 fps | 100% |
| Somchem MS200² | <<locked>> | 76% | 31,038 psi | 86% | 1348 fps | 100% |
| Somchem S221*² | <<locked>> | 68% | 31,198 psi | 86% | 1434 fps | 91.5% |
| Vihtavuori 3N37 | <<locked>> | 80% | 31,618 psi | 87% | 1421 fps | 99.3% |
| Vihtavuori 3N38* | <<locked>> | 96% | 32,039 psi | 88% | 1460 fps | 89.4% |
| Vihtavuori N105*ᴾ | <<locked>> | 100% | 29,689 psi | 82% | 1483 fps | 92.4% |
| Vihtavuori N320² | <<locked>> | 68% | 29,225 psi | 81% | 1240 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 28,631 psi | 79% | 1161 fps | 100% |
| Vihtavuori N330² | <<locked>> | 72% | 31,415 psi | 87% | 1332 fps | 100% |
| Vihtavuori N340² | <<locked>> | 76% | 31,241 psi | 86% | 1355 fps | 100% |
| Vihtavuori N350 | <<locked>> | 84% | 30,792 psi | 85% | 1401 fps | 99.3% |
| Winchester AutoComp | <<locked>> | 80% | 32,590 psi | 90% | 1348 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% | 21,364 psi | 59% | 1171 fps | 98.3% |
| Accurate Solo 1000² | <<locked>> | 60% | 22,843 psi | 63% | 1119 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 60% | 19,102 psi | 53% | 1106 fps | 100% |
| ADI AP 100*² | <<locked>> | 76% | 19,711 psi | 54% | 1184 fps | 87.3% |
| ADI AP 70N² | <<locked>> | 60% | 27,775 psi | 77% | 1273 fps | 100% |
| ADI APS 350² | <<locked>> | 60% | 25,280 psi | 70% | 1053 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 23,960 psi | 66% | 1066 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 23,177 psi | 64% | 1099 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 24,497 psi | 68% | 1165 fps | 100% |
| Alliant BE-86² | <<locked>> | 60% | 19,914 psi | 55% | 1119 fps | 100% |
| Alliant BULLSEYE² | <<locked>> | 60% | 24,642 psi | 68% | 1263 fps | 100% |
| Alliant Green Dot² | <<locked>> | 60% | 22,031 psi | 61% | 1122 fps | 100% |
| Alliant Herco² | 5.8 gr | 60% | 14,098 psi | 39% | 1017 fps | 95.7% |
| Alliant POWER PISTOL*² | <<locked>> | 64% | 20,523 psi | 57% | 1234 fps | 86.8% |
| Alliant RED DOT² | <<locked>> | 60% | 21,973 psi | 61% | 1096 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 60% | 27,905 psi | 77% | 1322 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 60% | 18,942 psi | 52% | 1148 fps | 98.8% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 21,524 psi | 59% | 1109 fps | 100% |
| Baschieri & Pellagri 102 Pistol² | <<locked>> | 60% | 13,561 psi | 37% | 961 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 23,047 psi | 64% | 1161 fps | 100% |
| Hodgdon Clays² | <<locked>> | 60% | 19,957 psi | 55% | 1001 fps | 100% |
| Hodgdon HS-6² | <<locked>> | 60% | 26,716 psi | 74% | 1325 fps | 96.2% |
| Hodgdon TrailBoss² | <<locked>> | 60% | 7,165 psi | 20% | 709 fps | 99.7% |
| Hodgdon Universal² | <<locked>> | 60% | 22,771 psi | 63% | 1188 fps | 100% |
| Lovex S011² | <<locked>> | 60% | 28,152 psi | 78% | 1237 fps | 100% |
| Lovex S020² | <<locked>> | 60% | 22,220 psi | 61% | 1194 fps | 100% |
| Maxam CSB 1² | <<locked>> | 60% | 18,318 psi | 51% | 1086 fps | 100% |
| Maxam CSB 2² | <<locked>> | 60% | 19,218 psi | 53% | 1115 fps | 100% |
| Maxam CSB 3² | <<locked>> | 60% | 20,726 psi | 57% | 1115 fps | 100% |
| Maxam CSB 4² | <<locked>> | 60% | 22,423 psi | 62% | 1125 fps | 100% |
| Maxam CSB 5² | <<locked>> | 60% | 25,251 psi | 70% | 1125 fps | 100% |
| Ramshot Silhouette² | <<locked>> | 60% | 26,818 psi | 74% | 1309 fps | 99.8% |
| ReloadSwiss RS 12² | <<locked>> | 60% | 25,788 psi | 71% | 1217 fps | 100% |
| ReloadSwiss RS 14² | <<locked>> | 60% | 6,846 psi | 19% | 705 fps | 96.9% |
| ReloadSwiss RS 20² | <<locked>> | 60% | 17,463 psi | 48% | 1129 fps | 99.4% |
| ReloadSwiss RS 24*² | <<locked>> | 76% | 26,774 psi | 74% | 1371 fps | 85.2% |
| Rottweil P 806*² | 9.8 gr | 64% | 13,866 psi | 38% | 1106 fps | 85.5% |
| SNPE Vectan A0² | <<locked>> | 60% | 18,043 psi | 50% | 1093 fps | 98.3% |
| SNPE Vectan A1² | <<locked>> | 60% | 22,698 psi | 63% | 1158 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 60% | 21,843 psi | 60% | 1158 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 60% | 27,180 psi | 75% | 1115 fps | 100% |
| SNPE Vectan BA7 1/2*² | 6.8 gr | 60% | 15,389 psi | 42% | 1050 fps | 88.9% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 21,669 psi | 60% | 1158 fps | 100% |
| SNPE Vectan SP 2*² | <<locked>> | 60% | 19,319 psi | 53% | 1224 fps | 88% |
| Somchem MP200² | <<locked>> | 60% | 22,220 psi | 61% | 1211 fps | 99.2% |
| Somchem MS200² | <<locked>> | 60% | 20,088 psi | 55% | 1148 fps | 99.6% |
| Somchem S221*² | <<locked>> | 60% | 23,598 psi | 65% | 1286 fps | 86.6% |
| Vihtavuori 3N37*² | <<locked>> | 60% | 17,202 psi | 47% | 1125 fps | 92.2% |
| Vihtavuori 3N38* | <<locked>> | 88% | 25,599 psi | 71% | 1342 fps | 85.4% |
| Vihtavuori N105* | <<locked>> | 88% | 21,132 psi | 58% | 1302 fps | 85.8% |
| Vihtavuori N320² | <<locked>> | 60% | 23,424 psi | 65% | 1152 fps | 100% |
| Vihtavuori N32C Tin Star² | <<locked>> | 60% | 11,908 psi | 33% | 863 fps | 100% |
| Vihtavuori N330² | <<locked>> | 60% | 22,002 psi | 61% | 1184 fps | 100% |
| Vihtavuori N340² | <<locked>> | 60% | 19,348 psi | 53% | 1138 fps | 99.1% |
| Vihtavuori N350*² | <<locked>> | 60% | 14,881 psi | 41% | 1060 fps | 90.1% |
| Winchester AutoComp ² | <<locked>> | 60% | 18,739 psi | 52% | 1109 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 56 powders for 9 x 25 Dillon loaded with the .355 | 124gr | Geco HEXAGON. Rottweil P 806 delivers the highest muzzle velocity at 1,509 fps; across all powders the maximum-charge window runs from 965 fps to 1,509 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 21 of the 56 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (250 MPa), the top charges use 39–90 %, 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. Rottweil P 806, SNPE Vectan BA7 1/2, Alliant Herco rank at the top here: for 9 x 25 Dillon with the .355 | 124gr | Geco HEXAGON they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Alliant POWER PISTOL, ReloadSwiss RS 24, Somchem S221 burn incompletely and react more sensitively to barrel length and temperature. Accurate Solo 1000, Accurate Solo 1250, ADI APS 350 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.