Load Specifications
Load data in caliber 9 mm Para with .355 | 100gr | Speer JHP bullet and 57 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Vihtavuori N330, Vihtavuori N340 and Lovex S020.
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: 4"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate No. 2* | <<locked>> | 84% | 27,760 psi | 81% | 1211 fps | 92.9% |
| Accurate Solo 1000 | <<locked>> | 84% | 27,702 psi | 81% | 1178 fps | 100% |
| Accurate Solo 1250 | <<locked>> | 96% | 30,487 psi | 89% | 1270 fps | 99.9% |
| ADI AP 70N | <<locked>> | 80% | 29,283 psi | 86% | 1276 fps | 100% |
| ADI APS 350 | <<locked>> | 80% | 29,240 psi | 86% | 1089 fps | 100% |
| ADI APS 450 | <<locked>> | 80% | 28,427 psi | 83% | 1112 fps | 100% |
| ADI AS 30 | <<locked>> | 88% | 29,472 psi | 86% | 1181 fps | 100% |
| ADI AS 50N | <<locked>> | 84% | 29,486 psi | 87% | 1224 fps | 100% |
| Alliant BE-86 | <<locked>> | 92% | 28,892 psi | 85% | 1243 fps | 100% |
| Alliant BULLSEYE | <<locked>> | 84% | 30,037 psi | 88% | 1302 fps | 97.6% |
| Alliant Green Dot | <<locked>> | 88% | 29,008 psi | 85% | 1220 fps | 100% |
| Alliant Herco*ᴾ | <<locked>> | 100% | 22,176 psi | 65% | 1168 fps | 93% |
| Alliant RED DOT | <<locked>> | 92% | 30,719 psi | 90% | 1220 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 76% | 28,718 psi | 84% | 1280 fps | 96.4% |
| Alliant UNIQUE | <<locked>> | 96% | 28,848 psi | 85% | 1299 fps | 96.6% |
| Baschieri & Pellagri 100 | <<locked>> | 88% | 28,572 psi | 84% | 1201 fps | 100% |
| Baschieri & Pellagri 102 Pistolᴾ | <<locked>> | 100% | 22,031 psi | 65% | 1129 fps | 100% |
| Baschieri & Pellagri 103 Pistol | <<locked>> | 84% | 28,935 psi | 85% | 1230 fps | 100% |
| Hodgdon CFE Pistol | <<locked>> | 92% | 30,661 psi | 90% | 1283 fps | 99.9% |
| Hodgdon Clays | <<locked>> | 92% | 29,283 psi | 86% | 1125 fps | 100% |
| Hodgdon HP38² | <<locked>> | 64% | 27,485 psi | 81% | 1211 fps | 100% |
| Hodgdon HS-6* | <<locked>> | 80% | 30,168 psi | 89% | 1296 fps | 87.3% |
| Hodgdon Longshot*² | <<locked>> | 76% | 30,124 psi | 88% | 1302 fps | 89.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 9,311 psi | 27% | 787 fps | 96.7% |
| Hodgdon Universal | <<locked>> | 88% | 29,283 psi | 86% | 1276 fps | 100% |
| Lovex S011² | <<locked>> | 76% | 29,704 psi | 87% | 1227 fps | 100% |
| Lovex S020 | <<locked>> | 88% | 29,428 psi | 86% | 1276 fps | 98.3% |
| Maxam CSB 1ᴾ | <<locked>> | 100% | 30,676 psi | 90% | 1270 fps | 100% |
| Maxam CSB 2ᴾ | <<locked>> | 100% | 30,414 psi | 89% | 1302 fps | 100% |
| Maxam CSB 3 | <<locked>> | 92% | 29,921 psi | 88% | 1243 fps | 100% |
| Maxam CSB 4 | <<locked>> | 88% | 28,935 psi | 85% | 1214 fps | 100% |
| Maxam CSB 5 | <<locked>> | 80% | 27,398 psi | 80% | 1148 fps | 100% |
| Ramshot Silhouette* | <<locked>> | 80% | 29,878 psi | 88% | 1296 fps | 94.8% |
| Ramshot True Blue*² | <<locked>> | 72% | 27,891 psi | 82% | 1260 fps | 88.4% |
| Ramshot Zip² | <<locked>> | 64% | 26,353 psi | 77% | 1198 fps | 99.8% |
| ReloadSwiss RS 12 | <<locked>> | 84% | 28,979 psi | 85% | 1270 fps | 100% |
| ReloadSwiss RS 14*ᴾ | <<locked>> | 100% | 8,441 psi | 25% | 768 fps | 90.8% |
| ReloadSwiss RS 20ᴾ | <<locked>> | 100% | 29,312 psi | 86% | 1322 fps | 98.5% |
| Rottweil P 801² | <<locked>> | 76% | 28,094 psi | 82% | 1220 fps | 100% |
| SNPE Vectan A0ᴾ | <<locked>> | 100% | 30,806 psi | 90% | 1273 fps | 97% |
| SNPE Vectan A1 | <<locked>> | 88% | 30,647 psi | 90% | 1250 fps | 100% |
| SNPE Vectan BA 9 | <<locked>> | 88% | 29,515 psi | 87% | 1243 fps | 99.2% |
| SNPE Vectan BA10² | <<locked>> | 76% | 29,718 psi | 87% | 1129 fps | 100% |
| SNPE Vectan BA9 1/2 | <<locked>> | 88% | 27,702 psi | 81% | 1234 fps | 99.5% |
| Somchem MP200 | <<locked>> | 88% | 29,559 psi | 87% | 1289 fps | 95.6% |
| Somchem MS200 | <<locked>> | 92% | 28,616 psi | 84% | 1260 fps | 97.3% |
| Vihtavuori 3N37* | <<locked>> | 96% | 27,804 psi | 82% | 1283 fps | 88.9% |
| Vihtavuori N310² | <<locked>> | 68% | 28,108 psi | 82% | 1132 fps | 100% |
| Vihtavuori N320 | <<locked>> | 88% | 29,588 psi | 87% | 1240 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 20,929 psi | 61% | 1056 fps | 100% |
| Vihtavuori N330 | <<locked>> | 92% | 29,602 psi | 87% | 1293 fps | 100% |
| Vihtavuori N340 | <<locked>> | 92% | 27,615 psi | 81% | 1247 fps | 96.2% |
| Vihtavuori N350*ᴾ | <<locked>> | 100% | 27,253 psi | 80% | 1266 fps | 88.8% |
| Winchester 231² | <<locked>> | 72% | 27,412 psi | 80% | 1217 fps | 99.9% |
| Winchester 244² | <<locked>> | 64% | 30,037 psi | 88% | 1247 fps | 100% |
| Winchester 572*² | <<locked>> | 68% | 30,110 psi | 88% | 1309 fps | 88.8% |
| Winchester AutoComp | <<locked>> | 96% | 29,617 psi | 87% | 1270 fps | 99.5% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 4"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate No. 2*² | <<locked>> | 72% | 20,073 psi | 59% | 1073 fps | 87.6% |
| Accurate Solo 1000² | <<locked>> | 60% | 15,722 psi | 46% | 955 fps | 99.2% |
| Accurate Solo 1250*² | <<locked>> | 60% | 11,589 psi | 34% | 876 fps | 88.8% |
| ADI AP 70N² | <<locked>> | 60% | 17,056 psi | 50% | 1040 fps | 96% |
| ADI APS 350² | <<locked>> | 60% | 18,173 psi | 53% | 925 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 17,434 psi | 51% | 938 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 15,722 psi | 46% | 945 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 15,606 psi | 46% | 968 fps | 98.7% |
| Alliant BE-86*² | <<locked>> | 60% | 12,067 psi | 35% | 899 fps | 92.8% |
| Alliant BULLSEYE*² | <<locked>> | 60% | 15,780 psi | 46% | 1007 fps | 87.9% |
| Alliant Green Dot² | <<locked>> | 60% | 14,678 psi | 43% | 945 fps | 98.2% |
| Alliant Herco* | <<locked>> | 84% | 15,331 psi | 45% | 1007 fps | 86.5% |
| Alliant RED DOT² | <<locked>> | 60% | 13,982 psi | 41% | 919 fps | 99.9% |
| Alliant Sport Pistol*² | <<locked>> | 60% | 17,564 psi | 52% | 1053 fps | 88.8% |
| Alliant UNIQUE*² | <<locked>> | 68% | 14,591 psi | 43% | 988 fps | 85.4% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 13,518 psi | 40% | 909 fps | 96.1% |
| Baschieri & Pellagri 102 Pistol*² | <<locked>> | 60% | 8,151 psi | 24% | 768 fps | 90.7% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 13,880 psi | 41% | 955 fps | 97.4% |
| Hodgdon CFE Pistol*² | <<locked>> | 60% | 13,111 psi | 38% | 928 fps | 90.4% |
| Hodgdon Clays² | <<locked>> | 60% | 13,938 psi | 41% | 866 fps | 100% |
| Hodgdon HP38² | <<locked>> | 60% | 24,294 psi | 71% | 1158 fps | 99.7% |
| Hodgdon HS-6*² | <<locked>> | 76% | 27,238 psi | 80% | 1250 fps | 85.5% |
| Hodgdon Longshot*² | <<locked>> | 72% | 26,252 psi | 77% | 1237 fps | 87.3% |
| Hodgdon TrailBoss*² | <<locked>> | 64% | 5,105 psi | 15% | 594 fps | 86.7% |
| Hodgdon Universal*² | <<locked>> | 60% | 14,185 psi | 42% | 961 fps | 93.3% |
| Lovex S011² | <<locked>> | 60% | 18,971 psi | 56% | 1040 fps | 97.8% |
| Lovex S020*² | 4 gr | 60% | 13,097 psi | 38% | 938 fps | 86.4% |
| Maxam CSB 1*² | <<locked>> | 60% | 11,226 psi | 33% | 860 fps | 88.4% |
| Maxam CSB 2*² | <<locked>> | 60% | 10,457 psi | 31% | 886 fps | 93.5% |
| Maxam CSB 3² | <<locked>> | 60% | 13,140 psi | 39% | 915 fps | 95.6% |
| Maxam CSB 4² | <<locked>> | 60% | 14,156 psi | 42% | 935 fps | 98.6% |
| Maxam CSB 5² | <<locked>> | 60% | 16,476 psi | 48% | 968 fps | 100% |
| Ramshot Silhouette*² | <<locked>> | 64% | 18,449 psi | 54% | 1076 fps | 86.9% |
| Ramshot True Blue*² | <<locked>> | 68% | 24,308 psi | 71% | 1194 fps | 85.9% |
| Ramshot Zip² | <<locked>> | 60% | 23,308 psi | 68% | 1148 fps | 99.3% |
| ReloadSwiss RS 12² | <<locked>> | 60% | 13,953 psi | 41% | 988 fps | 99.1% |
| ReloadSwiss RS 14* | <<locked>> | 84% | 6,628 psi | 19% | 686 fps | 86.1% |
| ReloadSwiss RS 20*² | <<locked>> | 68% | 13,053 psi | 38% | 958 fps | 85.2% |
| Rottweil P 801² | <<locked>> | 60% | 17,347 psi | 51% | 1037 fps | 100% |
| SNPE Vectan A0*² | <<locked>> | 68% | 14,620 psi | 43% | 948 fps | 85.2% |
| SNPE Vectan A1² | <<locked>> | 60% | 14,939 psi | 44% | 955 fps | 95% |
| SNPE Vectan BA 9*² | <<locked>> | 60% | 14,286 psi | 42% | 935 fps | 90% |
| SNPE Vectan BA10² | <<locked>> | 60% | 19,363 psi | 57% | 978 fps | 100% |
| SNPE Vectan BA9 1/2*² | <<locked>> | 60% | 13,373 psi | 39% | 925 fps | 91% |
| Somchem MP200*² | <<locked>> | 68% | 17,361 psi | 51% | 1047 fps | 87% |
| Somchem MS200*² | <<locked>> | 64% | 14,373 psi | 42% | 955 fps | 86.6% |
| Vihtavuori 3N37* | <<locked>> | 92% | 24,903 psi | 73% | 1230 fps | 87% |
| Vihtavuori N310² | <<locked>> | 60% | 21,538 psi | 63% | 1040 fps | 100% |
| Vihtavuori N320² | <<locked>> | 60% | 14,083 psi | 41% | 958 fps | 98.8% |
| Vihtavuori N32C Tin Star² | <<locked>> | 60% | 8,122 psi | 24% | 755 fps | 98.7% |
| Vihtavuori N330*² | 3.7 gr | 60% | 11,647 psi | 34% | 915 fps | 90.8% |
| Vihtavuori N340*² | 4.3 gr | 68% | 14,605 psi | 43% | 974 fps | 85.9% |
| Vihtavuori N350* | <<locked>> | 92% | 22,582 psi | 66% | 1181 fps | 85.4% |
| Winchester 231² | <<locked>> | 60% | 18,797 psi | 55% | 1056 fps | 97.5% |
| Winchester 244² | <<locked>> | 60% | 26,658 psi | 78% | 1198 fps | 100% |
| Winchester 572*² | <<locked>> | 64% | 26,063 psi | 76% | 1240 fps | 86.3% |
| Winchester AutoComp *² | <<locked>> | 60% | 11,211 psi | 33% | 869 fps | 86.6% |
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 57 powders for 9 mm Para loaded with the .355 | 100gr | Speer JHP. ReloadSwiss RS 20 delivers the highest muzzle velocity at 1,322 fps; across all powders the maximum-charge window runs from 768 fps to 1,322 fps. Alliant Herco gives the best case fill at 100 %, and 45 of the 57 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (235 MPa), the top charges use 25–90 %, leaving at least 10 % headroom. Alliant Herco, Baschieri & Pellagri 102 Pistol, Hodgdon TrailBoss 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. Vihtavuori N330, Vihtavuori N340, Lovex S020 rank at the top here: for 9 mm Para with the .355 | 100gr | Speer JHP they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate No. 2, Alliant Herco, Hodgdon HS-6 burn incompletely and react more sensitively to barrel length and temperature. Accurate No. 2, Accurate Solo 1000, Accurate Solo 1250 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.