Load Specifications
Bullet Manufacturer:Speer
Bullet Weight:124 gr
Bullet Diameter:0.355"
Bullet Length:<<locked>>
Caliber:.357 Mag. load data
Case Length (l3):1.29"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:25.6 Grains of Water
Primer Size:Small Pistol Magnum (SPM)
Barrel Length:6"
Max. allowed Pressure:43,511 psi
Load data in caliber .357 Mag. with .355 | 124gr | Speer Hollow Point Gold Dot bullet and 128 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Rottweil P 806, Vihtavuori N350 and SNPE Vectan BA7 1/2.
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.
A valid access license is required to use the Personalized Load Calculator.
You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate No. 2² | <<locked>> | 76% | 37,985 psi | 87% | 1480 fps | 100% |
| Accurate No. 2² | <<locked>> | 76% | 38,783 psi | 89% | 1503 fps | 100% |
| Accurate No. 7*² | <<locked>> | 76% | 35,331 psi | 81% | 1594 fps | 90.5% |
| Accurate No. 7*² | <<locked>> | 76% | 37,014 psi | 85% | 1634 fps | 91.8% |
| Accurate Solo 1000² | <<locked>> | 76% | 36,129 psi | 83% | 1355 fps | 100% |
| Accurate Solo 1000² | <<locked>> | 76% | 37,275 psi | 86% | 1378 fps | 100% |
| Accurate Solo 1250 | <<locked>> | 84% | 39,349 psi | 90% | 1457 fps | 100% |
| Accurate Solo 1250 | <<locked>> | 80% | 36,724 psi | 84% | 1437 fps | 100% |
| ADI AP 100ᴾ | <<locked>> | 100% | 38,101 psi | 88% | 1581 fps | 98.6% |
| ADI AP 100 | <<locked>> | 96% | 35,955 psi | 83% | 1565 fps | 98.5% |
| ADI AP 70N² | <<locked>> | 68% | 36,535 psi | 84% | 1437 fps | 100% |
| ADI AP 70N² | <<locked>> | 68% | 38,276 psi | 88% | 1473 fps | 100% |
| ADI APS 350² | <<locked>> | 76% | 37,550 psi | 86% | 1257 fps | 100% |
| ADI APS 350² | <<locked>> | 76% | 38,014 psi | 87% | 1273 fps | 100% |
| ADI APS 450² | <<locked>> | 76% | 36,637 psi | 84% | 1283 fps | 100% |
| ADI APS 450² | <<locked>> | 76% | 36,927 psi | 85% | 1296 fps | 100% |
| ADI AS 30 | <<locked>> | 80% | 38,972 psi | 90% | 1355 fps | 100% |
| ADI AS 30 | <<locked>> | 80% | 39,276 psi | 90% | 1371 fps | 100% |
| ADI AS 50N² | <<locked>> | 76% | 38,943 psi | 90% | 1404 fps | 100% |
| ADI AS 50N² | <<locked>> | 76% | 39,160 psi | 90% | 1417 fps | 100% |
| Alliant BE-86 | <<locked>> | 80% | 36,854 psi | 85% | 1411 fps | 100% |
| Alliant BE-86 | <<locked>> | 80% | 38,145 psi | 88% | 1437 fps | 100% |
| Alliant BLUE DOT*ᴾ | <<locked>> | 100% | 37,188 psi | 85% | 1611 fps | 90.2% |
| Alliant BLUE DOT*ᴾ | <<locked>> | 100% | 38,769 psi | 89% | 1650 fps | 91.3% |
| Alliant BULLSEYE² | <<locked>> | 72% | 36,564 psi | 84% | 1499 fps | 100% |
| Alliant BULLSEYE² | <<locked>> | 72% | 38,421 psi | 88% | 1535 fps | 100% |
| Alliant Green Dot | <<locked>> | 80% | 38,348 psi | 88% | 1401 fps | 100% |
| Alliant Green Dot² | <<locked>> | 76% | 36,027 psi | 83% | 1385 fps | 100% |
| Alliant Herco | <<locked>> | 96% | 35,969 psi | 83% | 1490 fps | 100% |
| Alliant Herco | <<locked>> | 96% | 37,797 psi | 87% | 1526 fps | 100% |
| Alliant POWER PISTOL | <<locked>> | 80% | 35,694 psi | 82% | 1594 fps | 97.6% |
| Alliant POWER PISTOL | <<locked>> | 80% | 36,724 psi | 84% | 1624 fps | 98.1% |
| Alliant RED DOT | <<locked>> | 80% | 36,898 psi | 85% | 1352 fps | 100% |
| Alliant RED DOT | <<locked>> | 80% | 38,232 psi | 88% | 1381 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 68% | 38,130 psi | 88% | 1522 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 68% | 39,001 psi | 90% | 1545 fps | 100% |
| Alliant UNIQUE | <<locked>> | 84% | 38,667 psi | 89% | 1532 fps | 100% |
| Alliant UNIQUE | <<locked>> | 80% | 36,216 psi | 83% | 1512 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 76% | 34,925 psi | 80% | 1345 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 76% | 35,969 psi | 83% | 1368 fps | 100% |
| Baschieri & Pellagri 102 Pistol | <<locked>> | 96% | 36,303 psi | 83% | 1375 fps | 100% |
| Baschieri & Pellagri 102 Pistol | <<locked>> | 96% | 37,536 psi | 86% | 1398 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 72% | 35,433 psi | 81% | 1371 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 72% | 36,941 psi | 85% | 1398 fps | 100% |
| Hodgdon Clays² | <<locked>> | 76% | 38,232 psi | 88% | 1276 fps | 100% |
| Hodgdon Clays | <<locked>> | 84% | 36,129 psi | 83% | 1286 fps | 100% |
| Hodgdon HS-6² | <<locked>> | 68% | 38,058 psi | 87% | 1558 fps | 99.9% |
| Hodgdon HS-6² | <<locked>> | 64% | 34,577 psi | 79% | 1519 fps | 99.8% |
| Hodgdon Longshot² | <<locked>> | 64% | 36,680 psi | 84% | 1532 fps | 100% |
| Hodgdon Longshot² | <<locked>> | 64% | 38,348 psi | 88% | 1568 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 16,679 psi | 38% | 1020 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 17,216 psi | 40% | 1040 fps | 100% |
| Hodgdon Universal² | <<locked>> | 76% | 37,376 psi | 86% | 1447 fps | 100% |
| Hodgdon Universal² | <<locked>> | 76% | 38,276 psi | 88% | 1473 fps | 100% |
| Lovex D037.1*² | <<locked>> | 76% | 35,331 psi | 81% | 1594 fps | 90.5% |
| Lovex D037.1*² | <<locked>> | 76% | 37,014 psi | 85% | 1634 fps | 91.8% |
| Lovex S011² | <<locked>> | 68% | 38,522 psi | 89% | 1414 fps | 100% |
| Lovex S011² | <<locked>> | 64% | 35,085 psi | 81% | 1385 fps | 100% |
| Lovex S020² | <<locked>> | 76% | 39,001 psi | 90% | 1486 fps | 100% |
| Lovex S020² | <<locked>> | 72% | 36,260 psi | 83% | 1467 fps | 100% |
| Maxam CSB 1 | <<locked>> | 84% | 36,071 psi | 83% | 1411 fps | 100% |
| Maxam CSB 1 | <<locked>> | 84% | 36,927 psi | 85% | 1434 fps | 100% |
| Maxam CSB 2 | <<locked>> | 80% | 35,926 psi | 83% | 1411 fps | 100% |
| Maxam CSB 2 | <<locked>> | 80% | 36,941 psi | 85% | 1434 fps | 100% |
| Maxam CSB 3 | <<locked>> | 80% | 37,202 psi | 86% | 1401 fps | 100% |
| Maxam CSB 3 | <<locked>> | 80% | 38,203 psi | 88% | 1424 fps | 100% |
| Maxam CSB 4 | <<locked>> | 80% | 39,233 psi | 90% | 1401 fps | 100% |
| Maxam CSB 4² | <<locked>> | 76% | 36,767 psi | 85% | 1385 fps | 100% |
| Maxam CSB 5² | <<locked>> | 72% | 36,230 psi | 83% | 1312 fps | 100% |
| Maxam CSB 5² | <<locked>> | 72% | 36,709 psi | 84% | 1329 fps | 100% |
| Ramshot Silhouette² | <<locked>> | 68% | 37,768 psi | 87% | 1519 fps | 100% |
| Ramshot Silhouette² | <<locked>> | 68% | 38,943 psi | 90% | 1545 fps | 100% |
| Ramshot True Blue² | <<locked>> | 64% | 37,898 psi | 87% | 1545 fps | 100% |
| ReloadSwiss RS 12² | <<locked>> | 72% | 38,392 psi | 88% | 1424 fps | 100% |
| ReloadSwiss RS 12² | <<locked>> | 68% | 36,085 psi | 83% | 1404 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 15,229 psi | 35% | 1024 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 15,751 psi | 36% | 1043 fps | 100% |
| ReloadSwiss RS 20 | <<locked>> | 84% | 37,884 psi | 87% | 1512 fps | 100% |
| ReloadSwiss RS 20 | <<locked>> | 84% | 39,349 psi | 90% | 1542 fps | 100% |
| ReloadSwiss RS 24* | <<locked>> | 84% | 37,246 psi | 86% | 1611 fps | 93.7% |
| ReloadSwiss RS 24* | <<locked>> | 84% | 38,421 psi | 88% | 1644 fps | 94.5% |
| Rottweil P 801² | <<locked>> | 68% | 38,682 psi | 89% | 1391 fps | 100% |
| Rottweil P 801² | <<locked>> | 64% | 35,549 psi | 82% | 1362 fps | 100% |
| Rottweil P 806 | <<locked>> | 88% | 36,201 psi | 83% | 1621 fps | 100% |
| Rottweil P 806 | <<locked>> | 88% | 38,566 psi | 89% | 1660 fps | 100% |
| Shooters World Major Pistol*² | <<locked>> | 76% | 35,331 psi | 81% | 1594 fps | 90.5% |
| Shooters World Major Pistol*² | <<locked>> | 76% | 37,014 psi | 85% | 1634 fps | 91.8% |
| SNPE Vectan A0 | <<locked>> | 84% | 36,506 psi | 84% | 1453 fps | 100% |
| SNPE Vectan A0 | <<locked>> | 84% | 37,086 psi | 85% | 1476 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 76% | 37,318 psi | 86% | 1411 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 76% | 37,884 psi | 87% | 1430 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 76% | 36,303 psi | 83% | 1421 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 76% | 36,898 psi | 85% | 1440 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 72% | 37,521 psi | 86% | 1293 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 72% | 37,768 psi | 87% | 1306 fps | 100% |
| SNPE Vectan BA7 1/2 | <<locked>> | 92% | 39,262 psi | 90% | 1552 fps | 100% |
| SNPE Vectan BA7 1/2 | <<locked>> | 88% | 36,419 psi | 84% | 1529 fps | 100% |
| SNPE Vectan BA9 1/2 | <<locked>> | 80% | 38,769 psi | 89% | 1457 fps | 100% |
| SNPE Vectan BA9 1/2² | <<locked>> | 76% | 36,274 psi | 83% | 1437 fps | 100% |
| SNPE Vectan SP 2² | <<locked>> | 76% | 36,056 psi | 83% | 1608 fps | 98.9% |
| SNPE Vectan SP 2² | <<locked>> | 76% | 37,898 psi | 87% | 1647 fps | 99.4% |
| Somchem MP200² | <<locked>> | 76% | 37,420 psi | 86% | 1506 fps | 100% |
| Somchem MP200² | <<locked>> | 76% | 38,725 psi | 89% | 1535 fps | 100% |
| Somchem MS200 | <<locked>> | 80% | 36,898 psi | 85% | 1473 fps | 100% |
| Somchem MS200 | <<locked>> | 80% | 38,435 psi | 88% | 1506 fps | 100% |
| Somchem S221² | <<locked>> | 72% | 38,566 psi | 89% | 1604 fps | 96.7% |
| Somchem S221² | <<locked>> | 68% | 35,679 psi | 82% | 1575 fps | 96.1% |
| Vihtavuori 3N37 | <<locked>> | 84% | 38,247 psi | 88% | 1565 fps | 100% |
| Vihtavuori 3N37 | <<locked>> | 80% | 36,042 psi | 83% | 1545 fps | 100% |
| Vihtavuori 3N38* | <<locked>> | 96% | 38,116 psi | 88% | 1608 fps | 94.7% |
| Vihtavuori 3N38* | <<locked>> | 96% | 37,231 psi | 86% | 1611 fps | 94.8% |
| Vihtavuori N105ᴾ | <<locked>> | 100% | 34,040 psi | 78% | 1611 fps | 96.9% |
| Vihtavuori N105ᴾ | <<locked>> | 100% | 36,230 psi | 83% | 1657 fps | 97.8% |
| Vihtavuori N310² | <<locked>> | 64% | 38,783 psi | 89% | 1306 fps | 100% |
| Vihtavuori N320² | <<locked>> | 76% | 38,101 psi | 88% | 1394 fps | 100% |
| Vihtavuori N320² | <<locked>> | 72% | 36,042 psi | 83% | 1378 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 35,897 psi | 83% | 1283 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 31,546 psi | 73% | 1243 fps | 100% |
| Vihtavuori N330² | <<locked>> | 76% | 36,056 psi | 83% | 1430 fps | 100% |
| Vihtavuori N330² | <<locked>> | 72% | 35,636 psi | 82% | 1437 fps | 100% |
| Vihtavuori N340 | <<locked>> | 80% | 36,303 psi | 83% | 1470 fps | 100% |
| Vihtavuori N340 | <<locked>> | 80% | 37,956 psi | 87% | 1499 fps | 100% |
| Vihtavuori N350 | <<locked>> | 88% | 39,160 psi | 90% | 1568 fps | 100% |
| Vihtavuori N350 | <<locked>> | 88% | 38,609 psi | 89% | 1572 fps | 100% |
| Winchester 231² | <<locked>> | 64% | 36,303 psi | 83% | 1407 fps | 100% |
| Winchester 231² | <<locked>> | 64% | 37,173 psi | 85% | 1430 fps | 100% |
| Winchester AutoComp | <<locked>> | 84% | 38,508 psi | 89% | 1463 fps | 100% |
| Winchester AutoComp | <<locked>> | 80% | 35,911 psi | 83% | 1444 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% | 22,945 psi | 53% | 1253 fps | 99.7% |
| Accurate No. 2² | <<locked>> | 60% | 23,395 psi | 54% | 1270 fps | 99.8% |
| Accurate No. 7*² | <<locked>> | 68% | 26,179 psi | 60% | 1427 fps | 85.1% |
| Accurate No. 7*² | <<locked>> | 68% | 27,833 psi | 64% | 1473 fps | 86.8% |
| Accurate Solo 1000² | <<locked>> | 60% | 24,149 psi | 56% | 1181 fps | 100% |
| Accurate Solo 1000² | <<locked>> | 60% | 24,845 psi | 57% | 1204 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 60% | 20,247 psi | 47% | 1171 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 60% | 21,466 psi | 49% | 1204 fps | 100% |
| ADI AP 100*² | <<locked>> | 68% | 16,926 psi | 39% | 1161 fps | 87.2% |
| ADI AP 100*² | <<locked>> | 64% | 15,592 psi | 36% | 1132 fps | 86.1% |
| ADI AP 70N² | <<locked>> | 60% | 29,385 psi | 68% | 1339 fps | 100% |
| ADI AP 70N² | <<locked>> | 60% | 30,560 psi | 70% | 1365 fps | 100% |
| ADI APS 350² | <<locked>> | 60% | 26,034 psi | 60% | 1106 fps | 100% |
| ADI APS 350² | <<locked>> | 60% | 26,919 psi | 62% | 1129 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 25,251 psi | 58% | 1125 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 25,222 psi | 58% | 1135 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 23,931 psi | 55% | 1148 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 24,743 psi | 57% | 1171 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 25,788 psi | 59% | 1224 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 26,455 psi | 61% | 1243 fps | 100% |
| Alliant BE-86² | <<locked>> | 60% | 21,234 psi | 49% | 1181 fps | 100% |
| Alliant BE-86² | <<locked>> | 60% | 21,611 psi | 50% | 1198 fps | 100% |
| Alliant BLUE DOT* | <<locked>> | 92% | 30,168 psi | 69% | 1493 fps | 86.5% |
| Alliant BLUE DOT* | <<locked>> | 88% | 28,442 psi | 65% | 1470 fps | 85.9% |
| Alliant BULLSEYE² | <<locked>> | 60% | 26,339 psi | 61% | 1339 fps | 100% |
| Alliant BULLSEYE² | <<locked>> | 60% | 26,876 psi | 62% | 1358 fps | 100% |
| Alliant Green Dot² | <<locked>> | 60% | 23,366 psi | 54% | 1184 fps | 100% |
| Alliant Green Dot² | <<locked>> | 60% | 24,062 psi | 55% | 1207 fps | 100% |
| Alliant Herco² | <<locked>> | 60% | 14,881 psi | 34% | 1083 fps | 98% |
| Alliant Herco² | <<locked>> | 60% | 15,722 psi | 36% | 1115 fps | 98.6% |
| Alliant POWER PISTOL*² | <<locked>> | 60% | 19,522 psi | 45% | 1260 fps | 88.6% |
| Alliant POWER PISTOL*² | <<locked>> | 60% | 20,189 psi | 46% | 1289 fps | 89.7% |
| Alliant RED DOT² | <<locked>> | 60% | 22,887 psi | 53% | 1148 fps | 100% |
| Alliant RED DOT² | <<locked>> | 60% | 23,772 psi | 55% | 1175 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 60% | 30,110 psi | 69% | 1407 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 60% | 31,096 psi | 71% | 1434 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 60% | 20,552 psi | 47% | 1234 fps | 99.9% |
| Alliant UNIQUE² | <<locked>> | 60% | 21,060 psi | 48% | 1250 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 22,669 psi | 52% | 1168 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 23,946 psi | 55% | 1198 fps | 100% |
| Baschieri & Pellagri 102 Pistol² | <<locked>> | 60% | 14,489 psi | 33% | 1020 fps | 100% |
| Baschieri & Pellagri 102 Pistol² | <<locked>> | 60% | 14,997 psi | 34% | 1037 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 24,889 psi | 57% | 1227 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 25,411 psi | 58% | 1243 fps | 100% |
| Hodgdon Clays² | <<locked>> | 60% | 26,426 psi | 61% | 1122 fps | 100% |
| Hodgdon Clays² | <<locked>> | 60% | 21,495 psi | 49% | 1073 fps | 100% |
| Hodgdon HS-6² | <<locked>> | 60% | 29,080 psi | 67% | 1421 fps | 98.7% |
| Hodgdon HS-6² | <<locked>> | 60% | 30,095 psi | 69% | 1450 fps | 99.1% |
| Hodgdon Longshot² | <<locked>> | 60% | 32,387 psi | 74% | 1470 fps | 99.9% |
| Hodgdon Longshot² | <<locked>> | 60% | 33,388 psi | 77% | 1499 fps | 100% |
| Hodgdon TrailBoss² | <<locked>> | 60% | 7,600 psi | 17% | 755 fps | 100% |
| Hodgdon TrailBoss² | <<locked>> | 60% | 7,919 psi | 18% | 774 fps | 100% |
| Hodgdon Universal² | <<locked>> | 60% | 24,511 psi | 56% | 1260 fps | 100% |
| Hodgdon Universal² | <<locked>> | 60% | 25,077 psi | 58% | 1280 fps | 100% |
| Lovex D037.1*² | <<locked>> | 68% | 26,179 psi | 60% | 1427 fps | 85.1% |
| Lovex D037.1*² | <<locked>> | 68% | 27,833 psi | 64% | 1473 fps | 86.8% |
| Lovex S011² | <<locked>> | 60% | 30,618 psi | 70% | 1316 fps | 100% |
| Lovex S011² | <<locked>> | 60% | 31,024 psi | 71% | 1332 fps | 100% |
| Lovex S020² | <<locked>> | 60% | 23,815 psi | 55% | 1270 fps | 100% |
| Lovex S020² | <<locked>> | 60% | 24,918 psi | 57% | 1299 fps | 100% |
| Maxam CSB 1² | <<locked>> | 60% | 19,421 psi | 45% | 1148 fps | 100% |
| Maxam CSB 1² | <<locked>> | 60% | 20,001 psi | 46% | 1168 fps | 100% |
| Maxam CSB 2² | <<locked>> | 60% | 20,552 psi | 47% | 1181 fps | 100% |
| Maxam CSB 2² | <<locked>> | 60% | 21,843 psi | 50% | 1211 fps | 100% |
| Maxam CSB 3² | <<locked>> | 60% | 22,002 psi | 51% | 1178 fps | 100% |
| Maxam CSB 3² | <<locked>> | 60% | 22,655 psi | 52% | 1198 fps | 100% |
| Maxam CSB 4² | <<locked>> | 60% | 23,757 psi | 55% | 1188 fps | 100% |
| Maxam CSB 4² | <<locked>> | 60% | 24,468 psi | 56% | 1207 fps | 100% |
| Maxam CSB 5² | <<locked>> | 60% | 26,774 psi | 62% | 1184 fps | 100% |
| Maxam CSB 5² | <<locked>> | 60% | 27,543 psi | 63% | 1207 fps | 100% |
| Ramshot Silhouette² | <<locked>> | 60% | 29,095 psi | 67% | 1394 fps | 100% |
| Ramshot Silhouette² | <<locked>> | 60% | 29,733 psi | 68% | 1414 fps | 100% |
| Ramshot True Blue² | <<locked>> | 60% | 33,533 psi | 77% | 1483 fps | 100% |
| ReloadSwiss RS 12² | <<locked>> | 60% | 27,746 psi | 64% | 1283 fps | 100% |
| ReloadSwiss RS 12² | <<locked>> | 60% | 28,340 psi | 65% | 1302 fps | 100% |
| ReloadSwiss RS 14² | <<locked>> | 60% | 7,237 psi | 17% | 758 fps | 98.8% |
| ReloadSwiss RS 14² | <<locked>> | 60% | 7,266 psi | 17% | 761 fps | 99% |
| ReloadSwiss RS 20² | <<locked>> | 60% | 19,043 psi | 44% | 1207 fps | 100% |
| ReloadSwiss RS 20² | <<locked>> | 60% | 19,566 psi | 45% | 1227 fps | 100% |
| ReloadSwiss RS 24*² | <<locked>> | 68% | 22,800 psi | 52% | 1339 fps | 85.2% |
| ReloadSwiss RS 24*² | <<locked>> | 68% | 23,656 psi | 54% | 1371 fps | 86.4% |
| Rottweil P 801² | <<locked>> | 60% | 31,241 psi | 72% | 1299 fps | 100% |
| Rottweil P 801² | <<locked>> | 60% | 31,647 psi | 73% | 1312 fps | 100% |
| Rottweil P 806*² | 10.6 gr | 60% | 13,764 psi | 32% | 1145 fps | 88.7% |
| Rottweil P 806*² | 10.6 gr | 60% | 14,533 psi | 33% | 1175 fps | 90.1% |
| Shooters World Major Pistol*² | <<locked>> | 68% | 26,179 psi | 60% | 1427 fps | 85.1% |
| Shooters World Major Pistol*² | <<locked>> | 68% | 27,833 psi | 64% | 1473 fps | 86.8% |
| SNPE Vectan A0² | <<locked>> | 60% | 19,435 psi | 45% | 1168 fps | 99.7% |
| SNPE Vectan A0² | <<locked>> | 60% | 19,870 psi | 46% | 1188 fps | 99.8% |
| SNPE Vectan A1² | <<locked>> | 60% | 23,989 psi | 55% | 1220 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 60% | 24,918 psi | 57% | 1247 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 60% | 23,177 psi | 53% | 1224 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 60% | 24,091 psi | 55% | 1250 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 60% | 28,297 psi | 65% | 1171 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 60% | 28,123 psi | 65% | 1181 fps | 100% |
| SNPE Vectan BA7 1/2*² | 7.8 gr | 60% | 16,331 psi | 38% | 1125 fps | 92.5% |
| SNPE Vectan BA7 1/2*² | 7.8 gr | 60% | 16,984 psi | 39% | 1152 fps | 93.5% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 22,611 psi | 52% | 1220 fps | 100% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 23,728 psi | 55% | 1250 fps | 100% |
| SNPE Vectan SP 2*² | <<locked>> | 60% | 20,958 psi | 48% | 1316 fps | 92.2% |
| SNPE Vectan SP 2*² | <<locked>> | 60% | 22,191 psi | 51% | 1355 fps | 93.5% |
| Somchem MP200² | <<locked>> | 60% | 23,467 psi | 54% | 1286 fps | 100% |
| Somchem MP200² | <<locked>> | 60% | 24,381 psi | 56% | 1312 fps | 100% |
| Somchem MS200² | <<locked>> | 60% | 21,596 psi | 50% | 1227 fps | 100% |
| Somchem MS200² | <<locked>> | 60% | 22,060 psi | 51% | 1243 fps | 100% |
| Somchem S221*² | <<locked>> | 60% | 25,585 psi | 59% | 1378 fps | 90.9% |
| Somchem S221*² | <<locked>> | 60% | 26,977 psi | 62% | 1421 fps | 92.2% |
| Vihtavuori 3N37² | <<locked>> | 60% | 18,710 psi | 43% | 1214 fps | 95.7% |
| Vihtavuori 3N37² | <<locked>> | 60% | 19,435 psi | 45% | 1240 fps | 96.5% |
| Vihtavuori 3N38* | <<locked>> | 80% | 24,105 psi | 55% | 1365 fps | 87.4% |
| Vihtavuori 3N38*² | <<locked>> | 76% | 21,190 psi | 49% | 1309 fps | 85.4% |
| Vihtavuori N105* | <<locked>> | 80% | 18,347 psi | 42% | 1283 fps | 86.2% |
| Vihtavuori N105*² | <<locked>> | 76% | 17,129 psi | 39% | 1257 fps | 85.2% |
| Vihtavuori N310² | <<locked>> | 60% | 34,780 psi | 80% | 1260 fps | 100% |
| Vihtavuori N320² | <<locked>> | 60% | 24,410 psi | 56% | 1207 fps | 100% |
| Vihtavuori N320² | <<locked>> | 60% | 26,252 psi | 60% | 1247 fps | 100% |
| Vihtavuori N32C Tin Star² | <<locked>> | 60% | 14,446 psi | 33% | 955 fps | 100% |
| Vihtavuori N32C Tin Star² | <<locked>> | 60% | 13,402 psi | 31% | 935 fps | 100% |
| Vihtavuori N330² | <<locked>> | 60% | 22,858 psi | 53% | 1240 fps | 100% |
| Vihtavuori N330² | <<locked>> | 60% | 25,048 psi | 58% | 1286 fps | 100% |
| Vihtavuori N340² | <<locked>> | 60% | 20,610 psi | 47% | 1214 fps | 100% |
| Vihtavuori N340² | <<locked>> | 60% | 21,814 psi | 50% | 1247 fps | 100% |
| Vihtavuori N350² | 7.6 gr | 60% | 17,260 psi | 40% | 1175 fps | 95% |
| Vihtavuori N350*² | 7.6 gr | 60% | 16,810 psi | 39% | 1168 fps | 94.9% |
| Winchester 231² | <<locked>> | 60% | 31,546 psi | 73% | 1345 fps | 100% |
| Winchester 231² | <<locked>> | 60% | 32,474 psi | 75% | 1368 fps | 100% |
| Winchester AutoComp ² | <<locked>> | 60% | 19,972 psi | 46% | 1178 fps | 100% |
| Winchester AutoComp ² | <<locked>> | 60% | 20,827 psi | 48% | 1204 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 128 powders for .357 Mag. loaded with the .355 | 124gr | Speer Hollow Point Gold Dot. Rottweil P 806 delivers the highest muzzle velocity at 1,660 fps; across all powders the maximum-charge window runs from 1,020 fps to 1,660 fps. ADI AP 100 gives the best case fill at 100 %, and 60 of the 128 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, Alliant BLUE DOT 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, Vihtavuori N350, SNPE Vectan BA7 1/2 rank at the top here: for .357 Mag. with the .355 | 124gr | Speer Hollow Point Gold Dot they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate No. 7, Accurate No. 7, Alliant BLUE DOT burn incompletely and react more sensitively to barrel length and temperature. ADI APS 350, Alliant Herco, 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.