Load Specifications
Load data in caliber 9 x 25 Dillon with .355 | 124gr | X-TREME RN HPCB bullet and 51 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>> | 68% | 29,849 psi | 82% | 1319 fps | 100% |
| Accurate Solo 1000² | <<locked>> | 68% | 29,892 psi | 82% | 1227 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 76% | 32,576 psi | 90% | 1329 fps | 100% |
| ADI AP 100 | <<locked>> | 92% | 31,386 psi | 87% | 1424 fps | 95.2% |
| ADI APS 350² | <<locked>> | 68% | 32,082 psi | 88% | 1148 fps | 100% |
| ADI APS 450² | <<locked>> | 68% | 30,951 psi | 85% | 1168 fps | 100% |
| ADI AS 30² | <<locked>> | 72% | 32,619 psi | 90% | 1230 fps | 100% |
| ADI AS 50N² | <<locked>> | 68% | 32,140 psi | 89% | 1273 fps | 100% |
| Alliant BE-86² | <<locked>> | 72% | 30,792 psi | 85% | 1289 fps | 100% |
| Alliant BULLSEYE² | <<locked>> | 64% | 30,023 psi | 83% | 1352 fps | 100% |
| Alliant Green Dot² | <<locked>> | 72% | 32,547 psi | 90% | 1280 fps | 100% |
| Alliant Herco | <<locked>> | 88% | 30,951 psi | 85% | 1368 fps | 100% |
| Alliant POWER PISTOL*² | <<locked>> | 76% | 31,720 psi | 87% | 1467 fps | 94.5% |
| Alliant RED DOT² | <<locked>> | 72% | 31,444 psi | 87% | 1237 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 76% | 32,314 psi | 89% | 1394 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 72% | 32,532 psi | 90% | 1273 fps | 100% |
| Baschieri & Pellagri 102 Pistol | <<locked>> | 88% | 31,067 psi | 86% | 1266 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 68% | 31,908 psi | 88% | 1286 fps | 100% |
| Hodgdon Clays² | <<locked>> | 76% | 30,458 psi | 84% | 1161 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 17,796 psi | 49% | 994 fps | 100% |
| Hodgdon Universal² | <<locked>> | 68% | 31,589 psi | 87% | 1322 fps | 100% |
| Lovex S020² | <<locked>> | 68% | 31,734 psi | 88% | 1345 fps | 100% |
| Maxam CSB 1² | <<locked>> | 76% | 30,124 psi | 83% | 1286 fps | 100% |
| Maxam CSB 2² | <<locked>> | 72% | 30,197 psi | 83% | 1289 fps | 100% |
| Maxam CSB 3² | <<locked>> | 72% | 30,690 psi | 85% | 1270 fps | 100% |
| Maxam CSB 4² | <<locked>> | 68% | 29,646 psi | 82% | 1234 fps | 100% |
| Maxam CSB 5² | <<locked>> | 64% | 30,516 psi | 84% | 1194 fps | 100% |
| ReloadSwiss RS 12² | <<locked>> | 64% | 31,662 psi | 87% | 1289 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 16,708 psi | 46% | 1004 fps | 100% |
| ReloadSwiss RS 20² | <<locked>> | 76% | 30,429 psi | 84% | 1365 fps | 100% |
| ReloadSwiss RS 24*² | <<locked>> | 76% | 29,428 psi | 81% | 1421 fps | 87.4% |
| Rottweil P 806 | <<locked>> | 84% | 32,242 psi | 89% | 1509 fps | 98.8% |
| SNPE Vectan A0² | <<locked>> | 76% | 30,197 psi | 83% | 1319 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 68% | 30,124 psi | 83% | 1276 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 68% | 29,225 psi | 81% | 1280 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 64% | 30,937 psi | 85% | 1168 fps | 100% |
| SNPE Vectan BA7 1/2 | <<locked>> | 84% | 31,850 psi | 88% | 1398 fps | 98.9% |
| SNPE Vectan BA9 1/2² | <<locked>> | 72% | 31,937 psi | 88% | 1325 fps | 100% |
| SNPE Vectan SP 2² | <<locked>> | 72% | 32,445 psi | 89% | 1490 fps | 96.5% |
| Somchem MP200² | <<locked>> | 68% | 30,647 psi | 85% | 1362 fps | 100% |
| Somchem MS200² | <<locked>> | 72% | 30,516 psi | 84% | 1335 fps | 100% |
| Somchem S221*² | <<locked>> | 64% | 30,545 psi | 84% | 1417 fps | 91.5% |
| Vihtavuori 3N37² | <<locked>> | 76% | 31,067 psi | 86% | 1404 fps | 99.3% |
| Vihtavuori 3N38* | <<locked>> | 92% | 32,097 psi | 89% | 1460 fps | 89.9% |
| Vihtavuori N105* | <<locked>> | 96% | 29,892 psi | 82% | 1486 fps | 92.9% |
| Vihtavuori N320² | <<locked>> | 68% | 32,184 psi | 89% | 1273 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 31,444 psi | 87% | 1191 fps | 100% |
| Vihtavuori N330² | <<locked>> | 68% | 30,864 psi | 85% | 1319 fps | 100% |
| Vihtavuori N340² | <<locked>> | 72% | 30,661 psi | 85% | 1342 fps | 100% |
| Vihtavuori N350 | <<locked>> | 80% | 30,139 psi | 83% | 1388 fps | 99.3% |
| Winchester AutoComp ² | <<locked>> | 76% | 32,169 psi | 89% | 1339 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% | 23,743 psi | 65% | 1214 fps | 99.2% |
| Accurate Solo 1000² | <<locked>> | 60% | 24,511 psi | 68% | 1145 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 60% | 21,060 psi | 58% | 1138 fps | 100% |
| ADI AP 100*² | <<locked>> | 68% | 17,724 psi | 49% | 1125 fps | 85.7% |
| ADI APS 350² | <<locked>> | 60% | 26,774 psi | 74% | 1076 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 25,338 psi | 70% | 1086 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 25,280 psi | 70% | 1122 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 26,585 psi | 73% | 1188 fps | 100% |
| Alliant BE-86² | <<locked>> | 60% | 21,901 psi | 60% | 1145 fps | 100% |
| Alliant BULLSEYE² | <<locked>> | 60% | 27,050 psi | 75% | 1302 fps | 100% |
| Alliant Green Dot² | <<locked>> | 60% | 24,091 psi | 66% | 1148 fps | 100% |
| Alliant Herco² | 6 gr | 60% | 16,201 psi | 45% | 1060 fps | 97.6% |
| Alliant POWER PISTOL*² | <<locked>> | 60% | 20,305 psi | 56% | 1220 fps | 87% |
| Alliant RED DOT² | <<locked>> | 60% | 24,221 psi | 67% | 1122 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 60% | 21,741 psi | 60% | 1201 fps | 99.7% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 23,438 psi | 65% | 1135 fps | 100% |
| Baschieri & Pellagri 102 Pistol² | 5.6 gr | 60% | 15,650 psi | 43% | 994 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 25,280 psi | 70% | 1191 fps | 100% |
| Hodgdon Clays² | <<locked>> | 60% | 21,495 psi | 59% | 1020 fps | 100% |
| Hodgdon TrailBoss² | <<locked>> | 60% | 8,949 psi | 25% | 745 fps | 100% |
| Hodgdon Universal² | <<locked>> | 60% | 25,773 psi | 71% | 1227 fps | 100% |
| Lovex S020² | <<locked>> | 60% | 25,019 psi | 69% | 1240 fps | 100% |
| Maxam CSB 1² | <<locked>> | 60% | 20,305 psi | 56% | 1115 fps | 100% |
| Maxam CSB 2² | <<locked>> | 60% | 21,915 psi | 60% | 1152 fps | 100% |
| Maxam CSB 3² | <<locked>> | 60% | 22,684 psi | 63% | 1142 fps | 100% |
| Maxam CSB 4² | <<locked>> | 60% | 24,352 psi | 67% | 1152 fps | 100% |
| Maxam CSB 5² | <<locked>> | 60% | 27,166 psi | 75% | 1148 fps | 100% |
| ReloadSwiss RS 12² | <<locked>> | 60% | 28,543 psi | 79% | 1243 fps | 100% |
| ReloadSwiss RS 14² | <<locked>> | 60% | 8,731 psi | 24% | 751 fps | 99.5% |
| ReloadSwiss RS 20² | <<locked>> | 60% | 19,522 psi | 54% | 1165 fps | 99.9% |
| ReloadSwiss RS 24*² | <<locked>> | 72% | 26,049 psi | 72% | 1352 fps | 85.1% |
| Rottweil P 806*² | <<locked>> | 60% | 15,403 psi | 42% | 1132 fps | 88.2% |
| SNPE Vectan A0² | <<locked>> | 60% | 19,696 psi | 54% | 1122 fps | 99.1% |
| SNPE Vectan A1² | <<locked>> | 60% | 24,192 psi | 67% | 1181 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 60% | 23,395 psi | 65% | 1181 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 60% | 28,500 psi | 79% | 1135 fps | 100% |
| SNPE Vectan BA7 1/2*² | <<locked>> | 60% | 17,143 psi | 47% | 1089 fps | 91.3% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 23,612 psi | 65% | 1188 fps | 100% |
| SNPE Vectan SP 2*² | <<locked>> | 60% | 22,263 psi | 61% | 1286 fps | 91% |
| Somchem MP200² | <<locked>> | 60% | 24,729 psi | 68% | 1253 fps | 99.8% |
| Somchem MS200² | <<locked>> | 60% | 22,539 psi | 62% | 1194 fps | 100% |
| Somchem S221*² | <<locked>> | 60% | 26,643 psi | 73% | 1342 fps | 89.2% |
| Vihtavuori 3N37*² | <<locked>> | 60% | 19,609 psi | 54% | 1178 fps | 94.6% |
| Vihtavuori 3N38* | <<locked>> | 84% | 26,150 psi | 72% | 1348 fps | 86.2% |
| Vihtavuori N105* | <<locked>> | 84% | 21,509 psi | 59% | 1302 fps | 86.5% |
| Vihtavuori N320² | <<locked>> | 60% | 25,657 psi | 71% | 1181 fps | 100% |
| Vihtavuori N32C Tin Star² | 4.4 gr | 60% | 14,315 psi | 39% | 896 fps | 100% |
| Vihtavuori N330² | <<locked>> | 60% | 24,932 psi | 69% | 1227 fps | 100% |
| Vihtavuori N340² | <<locked>> | 60% | 21,915 psi | 60% | 1184 fps | 99.8% |
| Vihtavuori N350*² | <<locked>> | 60% | 17,216 psi | 47% | 1112 fps | 93% |
| Winchester AutoComp ² | <<locked>> | 60% | 21,306 psi | 59% | 1152 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 51 powders for 9 x 25 Dillon loaded with the .355 | 124gr | X-TREME RN HPCB. Rottweil P 806 delivers the highest muzzle velocity at 1,509 fps; across all powders the maximum-charge window runs from 994 fps to 1,509 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 11 of the 51 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (250 MPa), the top charges use 46–90 %, leaving at least 10 % headroom. Hodgdon TrailBoss, ReloadSwiss RS 14, Vihtavuori N32C Tin Star 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 | X-TREME RN HPCB 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. 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.