Load Specifications
Load data in caliber .357 Mag. with .355 | 124gr | CamPro RN bullet and 64 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Rottweil P 806, SNPE Vectan BA7 1/2 and Vihtavuori N350.
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>> | 76% | 37,565 psi | 86% | 1476 fps | 100% |
| Accurate No. 7*² | <<locked>> | 76% | 35,621 psi | 82% | 1601 fps | 90.7% |
| Accurate Solo 1000² | <<locked>> | 76% | 35,824 psi | 82% | 1352 fps | 100% |
| Accurate Solo 1250 | <<locked>> | 84% | 38,972 psi | 90% | 1453 fps | 100% |
| ADI AP 100ᴾ | <<locked>> | 100% | 38,450 psi | 88% | 1588 fps | 98.8% |
| ADI AP 70N² | <<locked>> | 68% | 37,028 psi | 85% | 1447 fps | 100% |
| ADI APS 350² | <<locked>> | 76% | 38,203 psi | 88% | 1266 fps | 100% |
| ADI APS 450² | <<locked>> | 76% | 36,347 psi | 84% | 1280 fps | 100% |
| ADI AS 30 | <<locked>> | 80% | 38,624 psi | 89% | 1352 fps | 100% |
| ADI AS 50N² | <<locked>> | 76% | 38,595 psi | 89% | 1401 fps | 100% |
| Alliant BE-86 | <<locked>> | 80% | 37,275 psi | 86% | 1417 fps | 100% |
| Alliant BLUE DOT*ᴾ | <<locked>> | 100% | 37,376 psi | 86% | 1617 fps | 90.3% |
| Alliant BULLSEYE² | <<locked>> | 72% | 37,159 psi | 85% | 1509 fps | 100% |
| Alliant Green Dot | <<locked>> | 80% | 38,957 psi | 90% | 1411 fps | 100% |
| Alliant Herco | <<locked>> | 96% | 36,405 psi | 84% | 1499 fps | 100% |
| Alliant POWER PISTOL | <<locked>> | 80% | 36,042 psi | 83% | 1601 fps | 97.8% |
| Alliant RED DOT | <<locked>> | 80% | 37,507 psi | 86% | 1362 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 68% | 37,782 psi | 87% | 1519 fps | 100% |
| Alliant UNIQUE | <<locked>> | 84% | 39,233 psi | 90% | 1542 fps | 100% |
| Baschieri & Pellagri 100 | <<locked>> | 80% | 39,131 psi | 90% | 1394 fps | 100% |
| Baschieri & Pellagri 102 Pistolᴾ | <<locked>> | 100% | 39,204 psi | 90% | 1404 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 72% | 35,766 psi | 82% | 1378 fps | 100% |
| Hodgdon Clays | <<locked>> | 88% | 38,203 psi | 88% | 1299 fps | 100% |
| Hodgdon HS-6² | <<locked>> | 68% | 38,377 psi | 88% | 1565 fps | 100% |
| Hodgdon Longshot² | <<locked>> | 64% | 37,115 psi | 85% | 1542 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 16,549 psi | 38% | 1020 fps | 100% |
| Hodgdon Universal² | <<locked>> | 76% | 37,927 psi | 87% | 1457 fps | 100% |
| Lovex D037.1*² | <<locked>> | 76% | 35,621 psi | 82% | 1601 fps | 90.7% |
| Lovex S011² | <<locked>> | 68% | 38,130 psi | 88% | 1411 fps | 100% |
| Lovex S020² | <<locked>> | 72% | 35,056 psi | 81% | 1440 fps | 100% |
| Maxam CSB 1 | <<locked>> | 88% | 39,160 psi | 90% | 1450 fps | 100% |
| Maxam CSB 2 | <<locked>> | 80% | 36,405 psi | 84% | 1421 fps | 100% |
| Maxam CSB 3 | <<locked>> | 80% | 36,869 psi | 85% | 1398 fps | 100% |
| Maxam CSB 4² | <<locked>> | 76% | 36,187 psi | 83% | 1368 fps | 100% |
| Maxam CSB 5² | <<locked>> | 72% | 35,926 psi | 83% | 1309 fps | 100% |
| Ramshot Silhouette² | <<locked>> | 68% | 37,434 psi | 86% | 1516 fps | 100% |
| Ramshot True Blue² | <<locked>> | 64% | 38,334 psi | 88% | 1552 fps | 100% |
| ReloadSwiss RS 12² | <<locked>> | 72% | 38,986 psi | 90% | 1430 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 15,156 psi | 35% | 1024 fps | 100% |
| ReloadSwiss RS 20 | <<locked>> | 84% | 37,507 psi | 86% | 1509 fps | 100% |
| ReloadSwiss RS 24* | <<locked>> | 84% | 37,536 psi | 86% | 1617 fps | 93.8% |
| Rottweil P 801² | <<locked>> | 68% | 39,262 psi | 90% | 1398 fps | 100% |
| Rottweil P 806 | <<locked>> | 88% | 36,463 psi | 84% | 1624 fps | 100% |
| Shooters World Major Pistol*² | <<locked>> | 76% | 35,621 psi | 82% | 1601 fps | 90.7% |
| SNPE Vectan A0 | <<locked>> | 84% | 36,172 psi | 83% | 1453 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 76% | 36,970 psi | 85% | 1407 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 76% | 35,955 psi | 83% | 1421 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 72% | 37,217 psi | 86% | 1289 fps | 100% |
| SNPE Vectan BA7 1/2 | <<locked>> | 92% | 38,914 psi | 89% | 1549 fps | 100% |
| SNPE Vectan BA9 1/2 | <<locked>> | 80% | 39,334 psi | 90% | 1467 fps | 100% |
| SNPE Vectan SP 2² | <<locked>> | 76% | 36,463 psi | 84% | 1617 fps | 99% |
| Somchem MP200² | <<locked>> | 76% | 37,840 psi | 87% | 1512 fps | 100% |
| Somchem MS200 | <<locked>> | 80% | 37,391 psi | 86% | 1480 fps | 100% |
| Somchem S221² | <<locked>> | 72% | 38,914 psi | 89% | 1611 fps | 96.8% |
| Vihtavuori 3N37 | <<locked>> | 84% | 38,566 psi | 89% | 1568 fps | 100% |
| Vihtavuori 3N38* | <<locked>> | 96% | 35,621 psi | 82% | 1575 fps | 93.9% |
| Vihtavuori N105ᴾ | <<locked>> | 100% | 34,374 psi | 79% | 1617 fps | 97.1% |
| Vihtavuori N320² | <<locked>> | 76% | 39,175 psi | 90% | 1404 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 30,385 psi | 70% | 1220 fps | 100% |
| Vihtavuori N330² | <<locked>> | 76% | 38,827 psi | 89% | 1463 fps | 100% |
| Vihtavuori N340 | <<locked>> | 80% | 36,927 psi | 85% | 1476 fps | 100% |
| Vihtavuori N350 | <<locked>> | 88% | 37,173 psi | 85% | 1542 fps | 100% |
| Winchester 231² | <<locked>> | 64% | 36,027 psi | 83% | 1407 fps | 100% |
| Winchester AutoComp | <<locked>> | 84% | 38,101 psi | 88% | 1460 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% | 22,727 psi | 52% | 1250 fps | 99.7% |
| Accurate No. 7*² | <<locked>> | 68% | 26,440 psi | 61% | 1437 fps | 85.4% |
| Accurate Solo 1000² | <<locked>> | 60% | 23,960 psi | 55% | 1181 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 60% | 20,711 psi | 48% | 1181 fps | 100% |
| ADI AP 100*² | <<locked>> | 64% | 15,229 psi | 35% | 1112 fps | 85.2% |
| ADI AP 70N² | <<locked>> | 60% | 29,167 psi | 67% | 1339 fps | 100% |
| ADI APS 350² | <<locked>> | 60% | 26,643 psi | 61% | 1115 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 25,048 psi | 58% | 1125 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 24,482 psi | 56% | 1158 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 25,599 psi | 59% | 1224 fps | 100% |
| Alliant BE-86² | <<locked>> | 60% | 21,060 psi | 48% | 1181 fps | 100% |
| Alliant BLUE DOT* | <<locked>> | 92% | 30,458 psi | 70% | 1499 fps | 86.8% |
| Alliant BULLSEYE² | <<locked>> | 60% | 26,165 psi | 60% | 1339 fps | 100% |
| Alliant Green Dot² | <<locked>> | 60% | 23,873 psi | 55% | 1198 fps | 100% |
| Alliant Herco² | <<locked>> | 60% | 15,185 psi | 35% | 1093 fps | 98.2% |
| Alliant POWER PISTOL*² | <<locked>> | 60% | 19,827 psi | 46% | 1270 fps | 89% |
| Alliant RED DOT² | <<locked>> | 60% | 23,438 psi | 54% | 1161 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 60% | 29,849 psi | 69% | 1404 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 60% | 20,943 psi | 48% | 1243 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 23,163 psi | 53% | 1178 fps | 100% |
| Baschieri & Pellagri 102 Pistol² | <<locked>> | 60% | 14,823 psi | 34% | 1030 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 24,642 psi | 57% | 1227 fps | 100% |
| Hodgdon Clays² | <<locked>> | 60% | 21,205 psi | 49% | 1060 fps | 100% |
| Hodgdon HS-6² | <<locked>> | 60% | 29,457 psi | 68% | 1427 fps | 98.8% |
| Hodgdon Longshot² | <<locked>> | 60% | 32,082 psi | 74% | 1467 fps | 99.9% |
| Hodgdon TrailBoss² | <<locked>> | 60% | 7,571 psi | 17% | 755 fps | 100% |
| Hodgdon Universal² | <<locked>> | 60% | 24,323 psi | 56% | 1257 fps | 100% |
| Lovex D037.1*² | <<locked>> | 68% | 26,440 psi | 61% | 1437 fps | 85.4% |
| Lovex S011² | <<locked>> | 60% | 30,342 psi | 70% | 1312 fps | 100% |
| Lovex S020² | <<locked>> | 60% | 24,265 psi | 56% | 1276 fps | 100% |
| Maxam CSB 1² | <<locked>> | 60% | 19,276 psi | 44% | 1145 fps | 100% |
| Maxam CSB 2² | <<locked>> | 60% | 21,002 psi | 48% | 1188 fps | 100% |
| Maxam CSB 3² | <<locked>> | 60% | 22,495 psi | 52% | 1188 fps | 100% |
| Maxam CSB 4² | <<locked>> | 60% | 23,598 psi | 54% | 1184 fps | 100% |
| Maxam CSB 5² | <<locked>> | 60% | 26,542 psi | 61% | 1184 fps | 100% |
| Ramshot Silhouette² | <<locked>> | 60% | 28,805 psi | 66% | 1391 fps | 100% |
| Ramshot True Blue² | <<locked>> | 60% | 33,214 psi | 76% | 1480 fps | 99.9% |
| ReloadSwiss RS 12² | <<locked>> | 60% | 27,557 psi | 63% | 1280 fps | 100% |
| ReloadSwiss RS 14² | <<locked>> | 60% | 7,223 psi | 17% | 755 fps | 98.8% |
| ReloadSwiss RS 20² | <<locked>> | 60% | 18,869 psi | 43% | 1207 fps | 100% |
| ReloadSwiss RS 24*² | <<locked>> | 68% | 22,626 psi | 52% | 1339 fps | 85.1% |
| Rottweil P 801² | <<locked>> | 60% | 30,966 psi | 71% | 1296 fps | 100% |
| Rottweil P 806*² | 10.2 gr | 60% | 13,953 psi | 32% | 1152 fps | 89% |
| Shooters World Major Pistol*² | <<locked>> | 68% | 26,440 psi | 61% | 1437 fps | 85.4% |
| SNPE Vectan A0² | <<locked>> | 60% | 19,276 psi | 44% | 1165 fps | 99.7% |
| SNPE Vectan A1² | <<locked>> | 60% | 24,410 psi | 56% | 1230 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 60% | 23,569 psi | 54% | 1234 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 60% | 28,079 psi | 65% | 1171 fps | 100% |
| SNPE Vectan BA7 1/2*² | 7.5 gr | 60% | 16,592 psi | 38% | 1132 fps | 92.8% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 23,090 psi | 53% | 1230 fps | 100% |
| SNPE Vectan SP 2*² | <<locked>> | 60% | 21,306 psi | 49% | 1325 fps | 92.5% |
| Somchem MP200² | <<locked>> | 60% | 23,888 psi | 55% | 1293 fps | 100% |
| Somchem MS200² | <<locked>> | 60% | 21,422 psi | 49% | 1224 fps | 100% |
| Somchem S221*² | <<locked>> | 60% | 25,889 psi | 60% | 1388 fps | 91.1% |
| Vihtavuori 3N37² | <<locked>> | 60% | 19,029 psi | 44% | 1224 fps | 96% |
| Vihtavuori 3N38* | <<locked>> | 80% | 23,018 psi | 53% | 1342 fps | 86.6% |
| Vihtavuori N105* | <<locked>> | 80% | 18,579 psi | 43% | 1293 fps | 86.7% |
| Vihtavuori N320² | <<locked>> | 60% | 25,353 psi | 58% | 1224 fps | 100% |
| Vihtavuori N32C Tin Star² | <<locked>> | 60% | 12,647 psi | 29% | 912 fps | 100% |
| Vihtavuori N330² | <<locked>> | 60% | 24,279 psi | 56% | 1266 fps | 100% |
| Vihtavuori N340² | <<locked>> | 60% | 21,234 psi | 49% | 1227 fps | 100% |
| Vihtavuori N350*² | 7.3 gr | 60% | 16,346 psi | 38% | 1148 fps | 94.2% |
| Winchester 231² | <<locked>> | 60% | 31,981 psi | 74% | 1355 fps | 100% |
| Winchester AutoComp ² | <<locked>> | 60% | 20,320 psi | 47% | 1188 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 64 powders for .357 Mag. loaded with the .355 | 124gr | CamPro RN. Rottweil P 806 delivers the highest muzzle velocity at 1,624 fps; across all powders the maximum-charge window runs from 1,020 fps to 1,624 fps. ADI AP 100 gives the best case fill at 100 %, and 32 of the 64 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (300 MPa), the top charges use 35–90 %, leaving at least 10 % headroom. ADI AP 100, Alliant BLUE DOT, Baschieri & Pellagri 102 Pistol 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. Rottweil P 806, SNPE Vectan BA7 1/2, Vihtavuori N350 rank at the top here: for .357 Mag. with the .355 | 124gr | CamPro RN they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate No. 7, Alliant BLUE DOT, Lovex D037.1 burn incompletely and react more sensitively to barrel length and temperature. ADI AP 100, ADI APS 350, Alliant Herco 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.