Load Specifications
Load data in caliber .357 Maximum with .357 | 158gr | Hornady FP XTP bullet and 63 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant BLUE DOT, Vihtavuori N105 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: 7.5"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 4100* | <<locked>> | 88% | 40,045 psi | 89% | 1654 fps | 91.1% |
| Accurate No. 2² | <<locked>> | 68% | 39,929 psi | 89% | 1440 fps | 100% |
| Accurate No. 7² | <<locked>> | 64% | 35,244 psi | 78% | 1572 fps | 98.3% |
| Accurate No. 9*² | <<locked>> | 72% | 36,013 psi | 80% | 1581 fps | 94.8% |
| Accurate Solo 1000² | <<locked>> | 68% | 37,231 psi | 83% | 1302 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 72% | 37,724 psi | 84% | 1365 fps | 100% |
| Accurate TCM² | <<locked>> | 72% | 35,737 psi | 79% | 1575 fps | 95.7% |
| ADI AP 100 | <<locked>> | 88% | 40,364 psi | 90% | 1565 fps | 100% |
| ADI APS 350² | <<locked>> | 72% | 40,306 psi | 90% | 1243 fps | 100% |
| ADI APS 450² | <<locked>> | 72% | 38,783 psi | 86% | 1257 fps | 100% |
| ADI AS 30² | <<locked>> | 72% | 39,813 psi | 89% | 1302 fps | 100% |
| ADI AS 50N² | <<locked>> | 68% | 39,987 psi | 89% | 1348 fps | 100% |
| Alliant 2400* | <<locked>> | 84% | 39,044 psi | 87% | 1654 fps | 93.6% |
| Alliant BE-86² | <<locked>> | 72% | 39,334 psi | 87% | 1368 fps | 100% |
| Alliant BLUE DOT | <<locked>> | 88% | 40,277 psi | 90% | 1637 fps | 98.7% |
| Alliant BULLSEYE² | <<locked>> | 64% | 38,957 psi | 87% | 1457 fps | 100% |
| Alliant Green Dot² | <<locked>> | 72% | 40,176 psi | 89% | 1355 fps | 100% |
| Alliant Herco | <<locked>> | 84% | 37,971 psi | 84% | 1444 fps | 100% |
| Alliant POWER PISTOL² | <<locked>> | 72% | 40,161 psi | 89% | 1611 fps | 100% |
| Alliant RED DOT² | <<locked>> | 72% | 38,624 psi | 86% | 1309 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 72% | 39,160 psi | 87% | 1463 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 72% | 40,567 psi | 90% | 1339 fps | 100% |
| Baschieri & Pellagri 102 Pistol | <<locked>> | 88% | 39,581 psi | 88% | 1339 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 64% | 37,043 psi | 82% | 1319 fps | 100% |
| Hodgdon Clays | <<locked>> | 80% | 38,725 psi | 86% | 1253 fps | 100% |
| Hodgdon LilGun* | <<locked>> | 92% | 35,389 psi | 79% | 1680 fps | 93.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 21,843 psi | 49% | 1053 fps | 100% |
| Hodgdon Universal² | <<locked>> | 68% | 40,263 psi | 90% | 1407 fps | 100% |
| Lovex D037.1² | <<locked>> | 64% | 35,244 psi | 78% | 1572 fps | 98.3% |
| Lovex D037.2² | <<locked>> | 72% | 36,521 psi | 81% | 1591 fps | 95% |
| Lovex S020² | <<locked>> | 64% | 37,550 psi | 84% | 1394 fps | 100% |
| Maxam CSB 1² | <<locked>> | 76% | 39,160 psi | 87% | 1375 fps | 100% |
| Maxam CSB 2² | <<locked>> | 72% | 39,552 psi | 88% | 1371 fps | 100% |
| Maxam CSB 3² | <<locked>> | 72% | 39,044 psi | 87% | 1352 fps | 100% |
| Maxam CSB 4² | <<locked>> | 68% | 37,130 psi | 83% | 1309 fps | 100% |
| Maxam CSB 5² | <<locked>> | 68% | 40,045 psi | 89% | 1293 fps | 100% |
| Ramshot Enforcer* | <<locked>> | 84% | 38,638 psi | 86% | 1657 fps | 94.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 20,334 psi | 45% | 1066 fps | 100% |
| ReloadSwiss RS 20² | <<locked>> | 72% | 38,421 psi | 85% | 1437 fps | 100% |
| ReloadSwiss RS 24² | <<locked>> | 72% | 38,232 psi | 85% | 1598 fps | 99.7% |
| Rottweil P 806² | <<locked>> | 76% | 40,379 psi | 90% | 1594 fps | 100% |
| Shooters World Heavy Pistol² | <<locked>> | 72% | 36,521 psi | 81% | 1591 fps | 95% |
| Shooters World Major Pistol² | <<locked>> | 64% | 35,244 psi | 78% | 1572 fps | 98.3% |
| SNPE Vectan A0² | <<locked>> | 76% | 39,595 psi | 88% | 1424 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 68% | 38,319 psi | 85% | 1355 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 68% | 37,710 psi | 84% | 1371 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 68% | 40,263 psi | 90% | 1273 fps | 100% |
| SNPE Vectan BA6 1/2*ᴾ | <<locked>> | 100% | 26,992 psi | 60% | 1450 fps | 91.2% |
| SNPE Vectan BA7 1/2 | <<locked>> | 80% | 39,885 psi | 89% | 1503 fps | 100% |
| SNPE Vectan BA9 1/2² | <<locked>> | 68% | 37,246 psi | 83% | 1368 fps | 100% |
| SNPE Vectan SP 2² | <<locked>> | 64% | 36,985 psi | 82% | 1558 fps | 100% |
| Somchem MP200² | <<locked>> | 68% | 40,654 psi | 90% | 1473 fps | 100% |
| Somchem MS200² | <<locked>> | 72% | 39,740 psi | 88% | 1437 fps | 100% |
| Vihtavuori 3N37² | <<locked>> | 72% | 39,247 psi | 87% | 1506 fps | 100% |
| Vihtavuori 3N38 | <<locked>> | 84% | 38,305 psi | 85% | 1581 fps | 99.9% |
| Vihtavuori N105 | <<locked>> | 88% | 39,827 psi | 89% | 1634 fps | 100% |
| Vihtavuori N110*ᴾ | <<locked>> | 100% | 34,098 psi | 76% | 1601 fps | 92.2% |
| Vihtavuori N320² | <<locked>> | 64% | 36,883 psi | 82% | 1306 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 38,725 psi | 86% | 1250 fps | 100% |
| Vihtavuori N330² | <<locked>> | 64% | 37,405 psi | 83% | 1368 fps | 100% |
| Vihtavuori N340² | <<locked>> | 72% | 40,132 psi | 89% | 1440 fps | 100% |
| Vihtavuori N350² | <<locked>> | 76% | 38,203 psi | 85% | 1486 fps | 100% |
| Winchester AutoComp ² | <<locked>> | 72% | 37,391 psi | 83% | 1378 fps | 100% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 7.5"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 4100* | <<locked>> | 80% | 30,574 psi | 68% | 1506 fps | 86.5% |
| Accurate No. 2² | <<locked>> | 60% | 30,806 psi | 69% | 1329 fps | 100% |
| Accurate No. 7² | <<locked>> | 60% | 30,516 psi | 68% | 1493 fps | 96.8% |
| Accurate No. 9*² | <<locked>> | 60% | 23,221 psi | 52% | 1348 fps | 87.6% |
| Accurate Solo 1000² | <<locked>> | 60% | 30,313 psi | 67% | 1214 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 60% | 27,659 psi | 62% | 1234 fps | 100% |
| Accurate TCM*² | <<locked>> | 60% | 23,380 psi | 52% | 1345 fps | 89.1% |
| ADI AP 100² | 9.1 gr | 60% | 19,029 psi | 42% | 1198 fps | 97.4% |
| ADI APS 350² | <<locked>> | 60% | 30,748 psi | 68% | 1125 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 29,965 psi | 67% | 1145 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 29,834 psi | 66% | 1178 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 32,822 psi | 73% | 1260 fps | 100% |
| Alliant 2400*² | <<locked>> | 72% | 26,716 psi | 59% | 1440 fps | 87.2% |
| Alliant BE-86² | <<locked>> | 60% | 28,355 psi | 63% | 1234 fps | 100% |
| Alliant BLUE DOT*² | 10.7 gr | 60% | 17,854 psi | 40% | 1201 fps | 87.2% |
| Alliant BULLSEYE² | <<locked>> | 60% | 34,664 psi | 77% | 1401 fps | 100% |
| Alliant Green Dot² | <<locked>> | 60% | 29,791 psi | 66% | 1224 fps | 100% |
| Alliant Herco² | <<locked>> | 60% | 20,842 psi | 46% | 1181 fps | 100% |
| Alliant POWER PISTOL² | <<locked>> | 60% | 27,804 psi | 62% | 1417 fps | 99.8% |
| Alliant RED DOT² | <<locked>> | 60% | 29,298 psi | 65% | 1188 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 60% | 28,297 psi | 63% | 1312 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 29,965 psi | 67% | 1214 fps | 100% |
| Baschieri & Pellagri 102 Pistol² | <<locked>> | 60% | 19,798 psi | 44% | 1070 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 32,648 psi | 73% | 1270 fps | 100% |
| Hodgdon Clays² | <<locked>> | 60% | 25,179 psi | 56% | 1073 fps | 100% |
| Hodgdon LilGun* | <<locked>> | 84% | 26,237 psi | 58% | 1512 fps | 87.7% |
| Hodgdon TrailBoss² | <<locked>> | 60% | 9,993 psi | 22% | 794 fps | 100% |
| Hodgdon Universal² | <<locked>> | 60% | 32,663 psi | 73% | 1312 fps | 100% |
| Lovex D037.1² | <<locked>> | 60% | 30,516 psi | 68% | 1493 fps | 96.8% |
| Lovex D037.2*² | <<locked>> | 60% | 23,627 psi | 53% | 1355 fps | 88% |
| Lovex S020² | <<locked>> | 60% | 33,301 psi | 74% | 1342 fps | 100% |
| Maxam CSB 1² | <<locked>> | 60% | 25,875 psi | 58% | 1201 fps | 100% |
| Maxam CSB 2² | <<locked>> | 60% | 28,776 psi | 64% | 1237 fps | 100% |
| Maxam CSB 3² | <<locked>> | 60% | 28,935 psi | 64% | 1220 fps | 100% |
| Maxam CSB 4² | <<locked>> | 60% | 30,240 psi | 67% | 1220 fps | 100% |
| Maxam CSB 5² | <<locked>> | 60% | 33,359 psi | 74% | 1214 fps | 100% |
| Ramshot Enforcer*² | <<locked>> | 72% | 25,469 psi | 57% | 1427 fps | 87.7% |
| ReloadSwiss RS 14² | <<locked>> | 60% | 9,529 psi | 21% | 804 fps | 100% |
| ReloadSwiss RS 20² | <<locked>> | 60% | 26,948 psi | 60% | 1283 fps | 100% |
| ReloadSwiss RS 24² | <<locked>> | 60% | 25,672 psi | 57% | 1385 fps | 96.4% |
| Rottweil P 806² | <<locked>> | 60% | 23,337 psi | 52% | 1342 fps | 100% |
| Shooters World Heavy Pistol*² | <<locked>> | 60% | 23,627 psi | 53% | 1355 fps | 88% |
| Shooters World Major Pistol² | <<locked>> | 60% | 30,516 psi | 68% | 1493 fps | 96.8% |
| SNPE Vectan A0² | <<locked>> | 60% | 25,701 psi | 57% | 1234 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 60% | 30,922 psi | 69% | 1263 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 60% | 30,269 psi | 67% | 1276 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 60% | 33,243 psi | 74% | 1191 fps | 100% |
| SNPE Vectan BA6 1/2* | <<locked>> | 92% | 21,930 psi | 49% | 1342 fps | 87.2% |
| SNPE Vectan BA7 1/2² | <<locked>> | 60% | 22,931 psi | 51% | 1247 fps | 100% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 30,139 psi | 67% | 1276 fps | 100% |
| SNPE Vectan SP 2² | <<locked>> | 60% | 32,111 psi | 71% | 1490 fps | 100% |
| Somchem MP200² | <<locked>> | 60% | 32,242 psi | 72% | 1368 fps | 100% |
| Somchem MS200² | <<locked>> | 60% | 28,848 psi | 64% | 1293 fps | 100% |
| Vihtavuori 3N37² | <<locked>> | 60% | 26,963 psi | 60% | 1335 fps | 100% |
| Vihtavuori 3N38*² | <<locked>> | 60% | 18,376 psi | 41% | 1211 fps | 92.4% |
| Vihtavuori N105*² | 10.3 gr | 60% | 15,780 psi | 35% | 1191 fps | 94.1% |
| Vihtavuori N110* | <<locked>> | 88% | 23,409 psi | 52% | 1401 fps | 85.5% |
| Vihtavuori N320² | <<locked>> | 60% | 33,199 psi | 74% | 1260 fps | 100% |
| Vihtavuori N32C Tin Star² | <<locked>> | 60% | 16,998 psi | 38% | 945 fps | 100% |
| Vihtavuori N330² | <<locked>> | 60% | 33,127 psi | 74% | 1316 fps | 100% |
| Vihtavuori N340² | <<locked>> | 60% | 28,805 psi | 64% | 1296 fps | 100% |
| Vihtavuori N350² | <<locked>> | 60% | 23,279 psi | 52% | 1266 fps | 100% |
| Winchester AutoComp ² | <<locked>> | 60% | 27,209 psi | 61% | 1243 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 63 powders for .357 Maximum loaded with the .357 | 158gr | Hornady FP XTP. Hodgdon LilGun delivers the highest muzzle velocity at 1,680 fps; across all powders the maximum-charge window runs from 1,053 fps to 1,680 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 17 of the 63 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (310 MPa), the top charges use 45–90 %, leaving at least 10 % headroom. Hodgdon TrailBoss, ReloadSwiss RS 14, SNPE Vectan BA6 1/2 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. Alliant BLUE DOT, Vihtavuori N105, ADI AP 100 rank at the top here: for .357 Maximum with the .357 | 158gr | Hornady FP XTP they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 4100, Accurate No. 9, Alliant 2400 burn incompletely and react more sensitively to barrel length and temperature. Baschieri & Pellagri 102 Pistol, Hodgdon Clays, Hodgdon TrailBoss 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.