Load Specifications
Load data in caliber 9 mm Steyr with .355 | 80gr | Barnes TAC-XP bullet and 29 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are 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 Solo 1250² | <<locked>> | 72% | 17,564 psi | 90% | 1289 fps | 95.9% |
| Alliant BE-86² | <<locked>> | 68% | 16,186 psi | 83% | 1253 fps | 97.3% |
| Alliant Green Dot² | <<locked>> | 64% | 17,376 psi | 89% | 1253 fps | 99.6% |
| Alliant Herco* | <<locked>> | 84% | 16,839 psi | 86% | 1293 fps | 88.9% |
| Alliant RED DOT² | <<locked>> | 64% | 16,868 psi | 86% | 1227 fps | 100% |
| Alliant UNIQUE*² | <<locked>> | 72% | 17,216 psi | 88% | 1312 fps | 89.2% |
| Baschieri & Pellagri 100² | <<locked>> | 64% | 16,244 psi | 83% | 1217 fps | 98.4% |
| Baschieri & Pellagri 102 Pistol | <<locked>> | 84% | 16,404 psi | 84% | 1260 fps | 99.6% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 64% | 16,665 psi | 85% | 1263 fps | 99.2% |
| Hodgdon Clays² | <<locked>> | 64% | 16,766 psi | 86% | 1152 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 10,124 psi | 52% | 1004 fps | 97.9% |
| Hodgdon Universal² | <<locked>> | 64% | 17,158 psi | 88% | 1289 fps | 96.4% |
| Lovex S020*² | <<locked>> | 64% | 16,041 psi | 82% | 1260 fps | 90.8% |
| Maxam CSB 1² | <<locked>> | 72% | 16,215 psi | 83% | 1243 fps | 95% |
| Maxam CSB 2² | <<locked>> | 72% | 16,230 psi | 83% | 1302 fps | 99.1% |
| Maxam CSB 3² | <<locked>> | 68% | 17,318 psi | 88% | 1270 fps | 98.9% |
| Maxam CSB 4² | <<locked>> | 64% | 17,448 psi | 89% | 1260 fps | 99.9% |
| ReloadSwiss RS 14*ᴾ | <<locked>> | 100% | 9,253 psi | 47% | 984 fps | 92.8% |
| ReloadSwiss RS 20*² | <<locked>> | 76% | 17,143 psi | 88% | 1335 fps | 91.6% |
| SNPE Vectan A0*² | <<locked>> | 72% | 16,998 psi | 87% | 1257 fps | 88.7% |
| SNPE Vectan A1² | <<locked>> | 64% | 17,709 psi | 90% | 1270 fps | 97.4% |
| SNPE Vectan BA 9*² | <<locked>> | 64% | 16,926 psi | 86% | 1247 fps | 93.4% |
| SNPE Vectan BA9 1/2*² | <<locked>> | 64% | 16,114 psi | 82% | 1240 fps | 94.4% |
| Somchem MS200*² | <<locked>> | 68% | 17,187 psi | 88% | 1276 fps | 90.4% |
| Vihtavuori N320² | <<locked>> | 64% | 16,940 psi | 87% | 1273 fps | 99.9% |
| Vihtavuori N32C Tin Star | <<locked>> | 96% | 17,216 psi | 88% | 1227 fps | 100% |
| Vihtavuori N330² | <<locked>> | 68% | 16,940 psi | 87% | 1316 fps | 97.1% |
| Vihtavuori N340*² | <<locked>> | 68% | 15,606 psi | 80% | 1240 fps | 87.8% |
| Winchester AutoComp *² | <<locked>> | 72% | 16,940 psi | 87% | 1276 fps | 94.3% |
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 Solo 1250*² | <<locked>> | 60% | 12,502 psi | 64% | 1122 fps | 90.7% |
| Alliant BE-86*² | <<locked>> | 60% | 12,792 psi | 65% | 1142 fps | 94.2% |
| Alliant Green Dot² | <<locked>> | 60% | 15,461 psi | 79% | 1198 fps | 98.9% |
| Alliant Herco*² | <<locked>> | 76% | 14,112 psi | 72% | 1201 fps | 85.5% |
| Alliant RED DOT² | <<locked>> | 60% | 15,490 psi | 79% | 1188 fps | 100% |
| Alliant UNIQUE*² | <<locked>> | 64% | 14,112 psi | 72% | 1207 fps | 85.3% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 14,475 psi | 74% | 1161 fps | 97.3% |
| Baschieri & Pellagri 102 Pistol*² | 4.3 gr | 60% | 8,673 psi | 44% | 978 fps | 92.4% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 14,750 psi | 75% | 1207 fps | 98.3% |
| Hodgdon Clays² | <<locked>> | 60% | 14,721 psi | 75% | 1099 fps | 100% |
| Hodgdon TrailBoss*² | <<locked>> | 60% | 5,308 psi | 27% | 735 fps | 88.1% |
| Hodgdon Universal*² | <<locked>> | 60% | 14,953 psi | 76% | 1217 fps | 94.5% |
| Lovex S020*² | <<locked>> | 60% | 13,822 psi | 71% | 1188 fps | 88% |
| Maxam CSB 1*² | <<locked>> | 60% | 12,140 psi | 62% | 1102 fps | 90.4% |
| Maxam CSB 2² | <<locked>> | 60% | 11,487 psi | 59% | 1138 fps | 95.3% |
| Maxam CSB 3² | <<locked>> | 60% | 14,272 psi | 73% | 1175 fps | 97% |
| Maxam CSB 4² | <<locked>> | 60% | 15,461 psi | 79% | 1204 fps | 99.4% |
| ReloadSwiss RS 14*² | <<locked>> | 76% | 6,440 psi | 33% | 823 fps | 86.1% |
| ReloadSwiss RS 20*² | <<locked>> | 68% | 13,663 psi | 70% | 1211 fps | 86.8% |
| SNPE Vectan A0*² | <<locked>> | 68% | 15,418 psi | 79% | 1204 fps | 86.8% |
| SNPE Vectan A1² | <<locked>> | 60% | 15,476 psi | 79% | 1201 fps | 95.8% |
| SNPE Vectan BA 9*² | <<locked>> | 60% | 14,837 psi | 76% | 1178 fps | 91.2% |
| SNPE Vectan BA9 1/2*² | <<locked>> | 60% | 14,446 psi | 74% | 1188 fps | 92.8% |
| Somchem MS200*² | <<locked>> | 60% | 13,561 psi | 69% | 1155 fps | 86% |
| Vihtavuori N320² | <<locked>> | 60% | 14,997 psi | 77% | 1214 fps | 99.4% |
| Vihtavuori N32C Tin Star² | 3.4 gr | 60% | 7,890 psi | 40% | 915 fps | 98.7% |
| Vihtavuori N330*² | <<locked>> | 60% | 13,532 psi | 69% | 1204 fps | 93.9% |
| Vihtavuori N340*² | <<locked>> | 64% | 14,098 psi | 72% | 1188 fps | 85.8% |
| Winchester AutoComp *² | <<locked>> | 60% | 12,328 psi | 63% | 1119 fps | 88.9% |
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 29 powders for 9 mm Steyr loaded with the .355 | 80gr | Barnes TAC-XP. ReloadSwiss RS 20 delivers the highest muzzle velocity at 1,335 fps; across all powders the maximum-charge window runs from 984 fps to 1,335 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 5 of the 29 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (135 MPa), the top charges use 47–90 %, 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. Baschieri & Pellagri 102 Pistol, Vihtavuori N32C Tin Star rank at the top here: for 9 mm Steyr with the .355 | 80gr | Barnes TAC-XP they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Alliant Herco, Alliant UNIQUE, Lovex S020 burn incompletely and react more sensitively to barrel length and temperature. Accurate Solo 1250, 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.