Load Specifications
Load data in caliber 9 x 25 Dillon with .355 | 115gr | X-TREME RP HP bullet and 50 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% | 30,168 psi | 83% | 1401 fps | 100% |
| Accurate Solo 1000² | <<locked>> | 68% | 30,124 psi | 83% | 1302 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 76% | 32,068 psi | 88% | 1394 fps | 100% |
| ADI AP 100* | <<locked>> | 92% | 32,111 psi | 89% | 1512 fps | 94.9% |
| ADI APS 350² | <<locked>> | 68% | 31,981 psi | 88% | 1217 fps | 100% |
| ADI APS 450² | <<locked>> | 68% | 30,574 psi | 84% | 1230 fps | 100% |
| ADI AS 30² | <<locked>> | 68% | 30,487 psi | 84% | 1273 fps | 100% |
| ADI AS 50N² | <<locked>> | 68% | 32,213 psi | 89% | 1348 fps | 100% |
| Alliant BE-86² | <<locked>> | 72% | 30,676 psi | 85% | 1362 fps | 100% |
| Alliant BULLSEYE² | <<locked>> | 64% | 29,820 psi | 82% | 1424 fps | 100% |
| Alliant Green Dot² | <<locked>> | 72% | 32,532 psi | 90% | 1355 fps | 100% |
| Alliant Herco | <<locked>> | 88% | 31,096 psi | 86% | 1447 fps | 100% |
| Alliant POWER PISTOL*² | <<locked>> | 76% | 32,126 psi | 89% | 1552 fps | 94.1% |
| Alliant RED DOT² | <<locked>> | 72% | 31,952 psi | 88% | 1316 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 76% | 32,358 psi | 89% | 1473 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 72% | 32,213 psi | 89% | 1342 fps | 100% |
| Baschieri & Pellagri 102 Pistol | <<locked>> | 88% | 30,806 psi | 85% | 1335 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 68% | 32,300 psi | 89% | 1365 fps | 100% |
| Hodgdon Clays² | <<locked>> | 76% | 30,850 psi | 85% | 1234 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 17,738 psi | 49% | 1050 fps | 100% |
| Hodgdon Universal² | <<locked>> | 68% | 31,285 psi | 86% | 1391 fps | 100% |
| Lovex S020² | <<locked>> | 68% | 31,807 psi | 88% | 1424 fps | 100% |
| Maxam CSB 1² | <<locked>> | 76% | 30,472 psi | 84% | 1365 fps | 100% |
| Maxam CSB 2² | <<locked>> | 72% | 30,661 psi | 85% | 1368 fps | 100% |
| Maxam CSB 3² | <<locked>> | 72% | 31,241 psi | 86% | 1352 fps | 100% |
| Maxam CSB 4² | <<locked>> | 68% | 29,849 psi | 82% | 1309 fps | 100% |
| Maxam CSB 5² | <<locked>> | 64% | 30,182 psi | 83% | 1263 fps | 100% |
| ReloadSwiss RS 12² | <<locked>> | 64% | 32,198 psi | 89% | 1371 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 16,578 psi | 46% | 1056 fps | 100% |
| ReloadSwiss RS 20² | <<locked>> | 76% | 30,951 psi | 85% | 1450 fps | 100% |
| Rottweil P 806 | <<locked>> | 84% | 32,735 psi | 90% | 1591 fps | 98.5% |
| SNPE Vectan A0 | <<locked>> | 80% | 32,779 psi | 90% | 1437 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 68% | 30,255 psi | 83% | 1348 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 72% | 32,677 psi | 90% | 1407 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 64% | 31,372 psi | 87% | 1243 fps | 100% |
| SNPE Vectan BA7 1/2 | <<locked>> | 84% | 32,082 psi | 88% | 1476 fps | 98.6% |
| SNPE Vectan BA9 1/2² | <<locked>> | 72% | 32,126 psi | 89% | 1401 fps | 100% |
| SNPE Vectan SP 2² | <<locked>> | 72% | 32,605 psi | 90% | 1572 fps | 96% |
| Somchem MP200² | <<locked>> | 68% | 30,443 psi | 84% | 1430 fps | 100% |
| Somchem MS200² | <<locked>> | 72% | 30,574 psi | 84% | 1411 fps | 100% |
| Somchem S221*² | <<locked>> | 64% | 30,385 psi | 84% | 1490 fps | 90.7% |
| Vihtavuori 3N37² | <<locked>> | 76% | 31,517 psi | 87% | 1490 fps | 99.1% |
| Vihtavuori 3N38* | <<locked>> | 92% | 32,140 psi | 89% | 1535 fps | 89.1% |
| Vihtavuori N105* | <<locked>> | 96% | 30,429 psi | 84% | 1568 fps | 92.3% |
| Vihtavuori N320² | <<locked>> | 68% | 32,169 psi | 89% | 1348 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 31,676 psi | 87% | 1263 fps | 100% |
| Vihtavuori N330² | <<locked>> | 68% | 31,125 psi | 86% | 1398 fps | 100% |
| Vihtavuori N340² | <<locked>> | 72% | 30,603 psi | 84% | 1417 fps | 100% |
| Vihtavuori N350 | <<locked>> | 80% | 30,081 psi | 83% | 1460 fps | 99% |
| Winchester AutoComp ² | <<locked>> | 76% | 31,705 psi | 87% | 1404 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% | 23,728 psi | 65% | 1280 fps | 98.9% |
| Accurate Solo 1000² | <<locked>> | 60% | 24,381 psi | 67% | 1207 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 60% | 21,379 psi | 59% | 1207 fps | 100% |
| ADI AP 100*² | <<locked>> | 72% | 19,856 psi | 55% | 1240 fps | 86.9% |
| ADI APS 350² | <<locked>> | 60% | 26,281 psi | 72% | 1132 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 25,411 psi | 70% | 1152 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 24,598 psi | 68% | 1178 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 26,339 psi | 73% | 1253 fps | 100% |
| Alliant BE-86² | <<locked>> | 60% | 22,350 psi | 62% | 1220 fps | 100% |
| Alliant BULLSEYE² | <<locked>> | 60% | 27,035 psi | 75% | 1375 fps | 100% |
| Alliant Green Dot² | <<locked>> | 60% | 24,685 psi | 68% | 1227 fps | 100% |
| Alliant Herco² | 6.5 gr | 60% | 16,317 psi | 45% | 1119 fps | 97.2% |
| Alliant POWER PISTOL*² | <<locked>> | 60% | 20,349 psi | 56% | 1283 fps | 86.1% |
| Alliant RED DOT² | <<locked>> | 60% | 24,395 psi | 67% | 1191 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 60% | 21,901 psi | 60% | 1266 fps | 99.5% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 23,772 psi | 66% | 1207 fps | 100% |
| Baschieri & Pellagri 102 Pistol² | 6.1 gr | 60% | 15,940 psi | 44% | 1056 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 25,599 psi | 71% | 1263 fps | 100% |
| Hodgdon Clays² | <<locked>> | 60% | 21,132 psi | 58% | 1073 fps | 100% |
| Hodgdon TrailBoss² | <<locked>> | 60% | 9,108 psi | 25% | 794 fps | 100% |
| Hodgdon Universal² | <<locked>> | 60% | 25,280 psi | 70% | 1289 fps | 100% |
| Lovex S020² | <<locked>> | 60% | 24,961 psi | 69% | 1306 fps | 100% |
| Maxam CSB 1² | <<locked>> | 60% | 20,044 psi | 55% | 1175 fps | 100% |
| Maxam CSB 2² | <<locked>> | 60% | 22,133 psi | 61% | 1224 fps | 100% |
| Maxam CSB 3² | <<locked>> | 60% | 23,148 psi | 64% | 1214 fps | 100% |
| Maxam CSB 4² | <<locked>> | 60% | 24,207 psi | 67% | 1214 fps | 100% |
| Maxam CSB 5² | <<locked>> | 60% | 27,122 psi | 75% | 1214 fps | 100% |
| ReloadSwiss RS 12² | <<locked>> | 60% | 28,616 psi | 79% | 1316 fps | 100% |
| ReloadSwiss RS 14² | <<locked>> | 60% | 8,833 psi | 24% | 797 fps | 99.3% |
| ReloadSwiss RS 20² | <<locked>> | 60% | 19,551 psi | 54% | 1230 fps | 99.8% |
| Rottweil P 806*² | <<locked>> | 60% | 15,331 psi | 42% | 1184 fps | 87% |
| SNPE Vectan A0² | <<locked>> | 60% | 19,841 psi | 55% | 1188 fps | 98.9% |
| SNPE Vectan A1² | <<locked>> | 60% | 24,714 psi | 68% | 1257 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 60% | 23,830 psi | 66% | 1257 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 60% | 28,297 psi | 78% | 1198 fps | 100% |
| SNPE Vectan BA7 1/2*² | <<locked>> | 60% | 17,332 psi | 48% | 1152 fps | 90.7% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 23,670 psi | 65% | 1257 fps | 100% |
| SNPE Vectan SP 2*² | <<locked>> | 60% | 22,466 psi | 62% | 1355 fps | 90.2% |
| Somchem MP200² | <<locked>> | 60% | 24,424 psi | 67% | 1319 fps | 99.6% |
| Somchem MS200² | <<locked>> | 60% | 22,597 psi | 62% | 1260 fps | 99.9% |
| Somchem S221*² | <<locked>> | 60% | 26,716 psi | 74% | 1414 fps | 88.4% |
| Vihtavuori 3N37*² | <<locked>> | 60% | 19,725 psi | 54% | 1240 fps | 93.9% |
| Vihtavuori 3N38* | <<locked>> | 84% | 26,078 psi | 72% | 1414 fps | 85.2% |
| Vihtavuori N105* | <<locked>> | 84% | 21,509 psi | 59% | 1365 fps | 85.4% |
| Vihtavuori N320² | <<locked>> | 60% | 26,034 psi | 72% | 1257 fps | 100% |
| Vihtavuori N32C Tin Star² | 4.7 gr | 60% | 14,112 psi | 39% | 945 fps | 100% |
| Vihtavuori N330² | <<locked>> | 60% | 24,874 psi | 69% | 1293 fps | 100% |
| Vihtavuori N340² | <<locked>> | 60% | 21,901 psi | 60% | 1250 fps | 99.7% |
| Vihtavuori N350*² | <<locked>> | 60% | 17,085 psi | 47% | 1168 fps | 92.1% |
| Winchester AutoComp ² | <<locked>> | 60% | 21,205 psi | 58% | 1214 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 50 powders for 9 x 25 Dillon loaded with the .355 | 115gr | X-TREME RP HP. Rottweil P 806 delivers the highest muzzle velocity at 1,591 fps; across all powders the maximum-charge window runs from 1,050 fps to 1,591 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 12 of the 50 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 | 115gr | X-TREME RP HP they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AP 100, Alliant POWER PISTOL, Somchem S221 burn incompletely and react more sensitively to barrel length and temperature. Alliant Herco, Baschieri & Pellagri 102 Pistol, Hodgdon Clays 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.