Load Specifications
Load data in caliber .357 Mag. with .357 | 148gr | CamPro HBWC bullet and 66 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Vihtavuori N105, Vihtavuori 3N38 and ADI AP 100.
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: 6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate No. 2² | <<locked>> | 72% | 37,594 psi | 86% | 1365 fps | 100% |
| Accurate No. 7*² | <<locked>> | 72% | 36,071 psi | 83% | 1509 fps | 94.8% |
| Accurate No. 9* | <<locked>> | 80% | 35,723 psi | 82% | 1496 fps | 89.4% |
| Accurate Solo 1000² | <<locked>> | 76% | 39,262 psi | 90% | 1280 fps | 100% |
| Accurate Solo 1250 | <<locked>> | 80% | 39,102 psi | 90% | 1335 fps | 100% |
| Accurate TCM* | <<locked>> | 80% | 35,911 psi | 83% | 1493 fps | 90.8% |
| ADI AP 100 | <<locked>> | 92% | 36,492 psi | 84% | 1453 fps | 99.8% |
| ADI AP 70N² | <<locked>> | 64% | 36,042 psi | 83% | 1319 fps | 100% |
| ADI APS 350² | <<locked>> | 72% | 36,637 psi | 84% | 1152 fps | 100% |
| ADI APS 450² | <<locked>> | 76% | 39,262 psi | 90% | 1211 fps | 100% |
| ADI AS 30² | <<locked>> | 76% | 38,101 psi | 88% | 1240 fps | 100% |
| ADI AS 50N² | <<locked>> | 72% | 38,232 psi | 88% | 1289 fps | 100% |
| Alliant BE-86² | <<locked>> | 76% | 37,086 psi | 85% | 1302 fps | 100% |
| Alliant BLUE DOT* | <<locked>> | 96% | 39,001 psi | 90% | 1539 fps | 94.8% |
| Alliant BULLSEYE² | <<locked>> | 68% | 36,680 psi | 84% | 1385 fps | 100% |
| Alliant Green Dot² | <<locked>> | 76% | 37,681 psi | 87% | 1286 fps | 100% |
| Alliant Herco | <<locked>> | 92% | 36,941 psi | 85% | 1388 fps | 100% |
| Alliant POWER PISTOL² | <<locked>> | 76% | 36,593 psi | 84% | 1499 fps | 99.6% |
| Alliant RED DOT² | <<locked>> | 76% | 36,245 psi | 83% | 1240 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 64% | 37,333 psi | 86% | 1394 fps | 100% |
| Alliant UNIQUE | <<locked>> | 80% | 39,334 psi | 90% | 1421 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 76% | 38,899 psi | 89% | 1280 fps | 100% |
| Baschieri & Pellagri 102 Pistol | <<locked>> | 92% | 36,347 psi | 84% | 1266 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 68% | 35,360 psi | 81% | 1263 fps | 100% |
| Hodgdon Clays | <<locked>> | 84% | 37,565 psi | 86% | 1191 fps | 100% |
| Hodgdon HS-6² | <<locked>> | 64% | 37,797 psi | 87% | 1444 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 17,767 psi | 41% | 965 fps | 100% |
| Hodgdon Universal² | <<locked>> | 72% | 36,840 psi | 85% | 1329 fps | 100% |
| Lovex D037.1*² | <<locked>> | 72% | 36,071 psi | 83% | 1509 fps | 94.8% |
| Lovex D037.2* | <<locked>> | 80% | 37,072 psi | 85% | 1516 fps | 90% |
| Lovex S011² | <<locked>> | 64% | 37,275 psi | 86% | 1289 fps | 100% |
| Lovex S020² | <<locked>> | 72% | 38,725 psi | 89% | 1368 fps | 100% |
| Maxam CSB 1 | <<locked>> | 80% | 35,882 psi | 82% | 1299 fps | 100% |
| Maxam CSB 2² | <<locked>> | 76% | 35,723 psi | 82% | 1296 fps | 100% |
| Maxam CSB 3² | <<locked>> | 76% | 36,927 psi | 85% | 1286 fps | 100% |
| Maxam CSB 4² | <<locked>> | 76% | 38,841 psi | 89% | 1286 fps | 100% |
| Maxam CSB 5² | <<locked>> | 68% | 35,766 psi | 82% | 1204 fps | 100% |
| Ramshot Enforcer* | <<locked>> | 92% | 36,941 psi | 85% | 1545 fps | 88.3% |
| Ramshot Silhouette² | <<locked>> | 64% | 36,883 psi | 85% | 1394 fps | 100% |
| ReloadSwiss RS 12² | <<locked>> | 68% | 38,000 psi | 87% | 1306 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 15,983 psi | 37% | 965 fps | 100% |
| ReloadSwiss RS 20 | <<locked>> | 80% | 39,015 psi | 90% | 1404 fps | 100% |
| ReloadSwiss RS 24 | <<locked>> | 80% | 38,000 psi | 87% | 1522 fps | 97.2% |
| Rottweil P 801² | <<locked>> | 64% | 37,956 psi | 87% | 1273 fps | 100% |
| Rottweil P 806 | <<locked>> | 84% | 38,377 psi | 88% | 1529 fps | 100% |
| Shooters World Heavy Pistol* | <<locked>> | 80% | 37,072 psi | 85% | 1516 fps | 90% |
| Shooters World Major Pistol*² | <<locked>> | 72% | 36,071 psi | 83% | 1509 fps | 94.8% |
| SNPE Vectan A0 | <<locked>> | 80% | 37,159 psi | 85% | 1352 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 72% | 36,869 psi | 85% | 1296 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 72% | 36,027 psi | 83% | 1309 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 68% | 36,651 psi | 84% | 1184 fps | 100% |
| SNPE Vectan BA7 1/2 | <<locked>> | 84% | 36,013 psi | 83% | 1401 fps | 100% |
| SNPE Vectan BA9 1/2² | <<locked>> | 76% | 39,305 psi | 90% | 1348 fps | 100% |
| SNPE Vectan SP 2² | <<locked>> | 72% | 37,188 psi | 85% | 1509 fps | 100% |
| Somchem MP200² | <<locked>> | 72% | 37,942 psi | 87% | 1398 fps | 100% |
| Somchem MS200² | <<locked>> | 76% | 37,420 psi | 86% | 1365 fps | 100% |
| Somchem S221² | <<locked>> | 68% | 38,798 psi | 89% | 1509 fps | 99.1% |
| Vihtavuori 3N37² | <<locked>> | 76% | 34,998 psi | 80% | 1407 fps | 100% |
| Vihtavuori 3N38 | <<locked>> | 92% | 37,434 psi | 86% | 1499 fps | 97.6% |
| Vihtavuori N105 | <<locked>> | 96% | 37,362 psi | 86% | 1542 fps | 99.7% |
| Vihtavuori N320² | <<locked>> | 72% | 39,131 psi | 90% | 1293 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 32,895 psi | 76% | 1152 fps | 100% |
| Vihtavuori N330² | <<locked>> | 72% | 39,117 psi | 90% | 1348 fps | 100% |
| Vihtavuori N340² | <<locked>> | 76% | 37,101 psi | 85% | 1365 fps | 100% |
| Vihtavuori N350 | <<locked>> | 84% | 38,348 psi | 88% | 1440 fps | 100% |
| Winchester AutoComp | <<locked>> | 80% | 38,696 psi | 89% | 1352 fps | 100% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate No. 2² | <<locked>> | 60% | 25,744 psi | 59% | 1211 fps | 100% |
| Accurate No. 7*² | <<locked>> | 60% | 22,742 psi | 52% | 1273 fps | 87.2% |
| Accurate No. 9*² | <<locked>> | 76% | 30,705 psi | 71% | 1417 fps | 86.7% |
| Accurate Solo 1000² | <<locked>> | 60% | 26,223 psi | 60% | 1122 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 60% | 22,785 psi | 52% | 1125 fps | 100% |
| Accurate TCM*² | <<locked>> | 72% | 26,992 psi | 62% | 1345 fps | 85.7% |
| ADI AP 100*² | 7.5 gr | 60% | 14,808 psi | 34% | 1033 fps | 89% |
| ADI AP 70N² | <<locked>> | 60% | 32,039 psi | 74% | 1270 fps | 100% |
| ADI APS 350² | <<locked>> | 60% | 28,050 psi | 64% | 1047 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 26,368 psi | 61% | 1056 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 25,730 psi | 59% | 1086 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 27,615 psi | 63% | 1158 fps | 100% |
| Alliant BE-86² | <<locked>> | 60% | 23,322 psi | 54% | 1125 fps | 100% |
| Alliant BLUE DOT*² | <<locked>> | 76% | 22,321 psi | 51% | 1250 fps | 85.5% |
| Alliant BULLSEYE² | <<locked>> | 60% | 29,472 psi | 68% | 1286 fps | 100% |
| Alliant Green Dot² | <<locked>> | 60% | 25,106 psi | 58% | 1122 fps | 100% |
| Alliant Herco² | <<locked>> | 60% | 16,143 psi | 37% | 1043 fps | 99.9% |
| Alliant POWER PISTOL*² | <<locked>> | 60% | 22,075 psi | 51% | 1240 fps | 94.7% |
| Alliant RED DOT² | <<locked>> | 60% | 24,758 psi | 57% | 1089 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 60% | 33,272 psi | 76% | 1342 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 60% | 22,742 psi | 52% | 1184 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 25,237 psi | 58% | 1115 fps | 100% |
| Baschieri & Pellagri 102 Pistol² | <<locked>> | 60% | 15,983 psi | 37% | 974 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 27,238 psi | 63% | 1165 fps | 100% |
| Hodgdon Clays² | <<locked>> | 60% | 22,423 psi | 52% | 997 fps | 100% |
| Hodgdon HS-6² | <<locked>> | 60% | 32,895 psi | 76% | 1378 fps | 100% |
| Hodgdon TrailBoss² | <<locked>> | 60% | 7,295 psi | 17% | 702 fps | 100% |
| Hodgdon Universal² | <<locked>> | 60% | 26,890 psi | 62% | 1201 fps | 100% |
| Lovex D037.1*² | <<locked>> | 60% | 22,742 psi | 52% | 1273 fps | 87.2% |
| Lovex D037.2*² | <<locked>> | 76% | 31,908 psi | 73% | 1437 fps | 87.4% |
| Lovex S011² | <<locked>> | 60% | 32,938 psi | 76% | 1240 fps | 100% |
| Lovex S020² | <<locked>> | 60% | 26,498 psi | 61% | 1214 fps | 100% |
| Maxam CSB 1² | <<locked>> | 60% | 21,118 psi | 49% | 1093 fps | 100% |
| Maxam CSB 2² | <<locked>> | 60% | 23,018 psi | 53% | 1129 fps | 100% |
| Maxam CSB 3² | <<locked>> | 60% | 23,946 psi | 55% | 1115 fps | 100% |
| Maxam CSB 4² | <<locked>> | 60% | 25,846 psi | 59% | 1125 fps | 100% |
| Maxam CSB 5² | <<locked>> | 60% | 28,964 psi | 67% | 1122 fps | 100% |
| Ramshot Enforcer* | <<locked>> | 88% | 31,691 psi | 73% | 1463 fps | 85.5% |
| Ramshot Silhouette² | <<locked>> | 60% | 32,474 psi | 75% | 1335 fps | 100% |
| ReloadSwiss RS 12² | <<locked>> | 60% | 29,805 psi | 69% | 1207 fps | 100% |
| ReloadSwiss RS 14² | <<locked>> | 60% | 6,715 psi | 15% | 699 fps | 99.6% |
| ReloadSwiss RS 20² | <<locked>> | 60% | 21,611 psi | 50% | 1165 fps | 100% |
| ReloadSwiss RS 24*² | <<locked>> | 60% | 19,595 psi | 45% | 1184 fps | 86.9% |
| Rottweil P 801² | <<locked>> | 60% | 33,837 psi | 78% | 1227 fps | 100% |
| Rottweil P 806*² | <<locked>> | 60% | 15,563 psi | 36% | 1122 fps | 94.7% |
| Shooters World Heavy Pistol*² | <<locked>> | 76% | 31,908 psi | 73% | 1437 fps | 87.4% |
| Shooters World Major Pistol*² | <<locked>> | 60% | 22,742 psi | 52% | 1273 fps | 87.2% |
| SNPE Vectan A0² | <<locked>> | 60% | 21,074 psi | 48% | 1119 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 60% | 26,324 psi | 61% | 1161 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 60% | 25,541 psi | 59% | 1168 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 60% | 30,153 psi | 69% | 1106 fps | 100% |
| SNPE Vectan BA7 1/2² | <<locked>> | 60% | 17,825 psi | 41% | 1093 fps | 97% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 25,063 psi | 58% | 1165 fps | 100% |
| SNPE Vectan SP 2² | <<locked>> | 60% | 24,395 psi | 56% | 1302 fps | 97.6% |
| Somchem MP200² | <<locked>> | 60% | 26,426 psi | 61% | 1240 fps | 100% |
| Somchem MS200² | <<locked>> | 60% | 23,844 psi | 55% | 1175 fps | 100% |
| Somchem S221² | <<locked>> | 60% | 29,095 psi | 67% | 1362 fps | 96.4% |
| Vihtavuori 3N37² | <<locked>> | 60% | 21,190 psi | 49% | 1184 fps | 99.3% |
| Vihtavuori 3N38*² | 9.7 gr | 68% | 17,724 psi | 41% | 1138 fps | 86.2% |
| Vihtavuori N105*² | 9.6 gr | 68% | 14,460 psi | 33% | 1096 fps | 86.2% |
| Vihtavuori N320² | <<locked>> | 60% | 27,818 psi | 64% | 1158 fps | 100% |
| Vihtavuori N32C Tin Star² | <<locked>> | 60% | 13,155 psi | 30% | 856 fps | 100% |
| Vihtavuori N330² | <<locked>> | 60% | 26,803 psi | 62% | 1201 fps | 100% |
| Vihtavuori N340² | <<locked>> | 60% | 23,177 psi | 53% | 1171 fps | 100% |
| Vihtavuori N350² | <<locked>> | 60% | 18,347 psi | 42% | 1122 fps | 98.4% |
| Winchester AutoComp ² | <<locked>> | 60% | 21,799 psi | 50% | 1125 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 66 powders for .357 Mag. loaded with the .357 | 148gr | CamPro HBWC. Ramshot Enforcer delivers the highest muzzle velocity at 1,545 fps; across all powders the maximum-charge window runs from 965 fps to 1,545 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 25 of the 66 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (300 MPa), the top charges use 37–90 %, 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. Vihtavuori N105, Vihtavuori 3N38, ADI AP 100 rank at the top here: for .357 Mag. with the .357 | 148gr | CamPro HBWC they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate No. 7, Accurate No. 9, Accurate TCM burn incompletely and react more sensitively to barrel length and temperature. Accurate Solo 1000, ADI AP 100, 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.