Load Specifications
Load data in caliber .357 SIG with .356 | 115gr | Berry's HBRN-TP 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 3N37, Alliant UNIQUE and ReloadSwiss RS 20.
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: 4.5"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate No. 2 | <<locked>> | 84% | 36,245 psi | 82% | 1332 fps | 99.4% |
| Accurate No. 5*² | <<locked>> | 72% | 38,667 psi | 87% | 1444 fps | 94.5% |
| Accurate Solo 1000 | <<locked>> | 88% | 37,985 psi | 86% | 1276 fps | 100% |
| Accurate Solo 1250 | <<locked>> | 96% | 39,581 psi | 89% | 1355 fps | 100% |
| ADI AP 100*ᴾ | <<locked>> | 100% | 28,079 psi | 63% | 1276 fps | 87.4% |
| ADI AP 70N | <<locked>> | 80% | 39,117 psi | 88% | 1368 fps | 100% |
| ADI APS 350 | <<locked>> | 84% | 37,797 psi | 85% | 1158 fps | 100% |
| ADI APS 450 | <<locked>> | 88% | 39,784 psi | 90% | 1217 fps | 100% |
| ADI AS 30 | <<locked>> | 88% | 37,217 psi | 84% | 1237 fps | 100% |
| ADI AS 50N | <<locked>> | 84% | 36,999 psi | 84% | 1283 fps | 100% |
| Alliant BE-86 | <<locked>> | 92% | 38,159 psi | 86% | 1332 fps | 100% |
| Alliant BULLSEYE | <<locked>> | 84% | 38,624 psi | 87% | 1414 fps | 100% |
| Alliant Green Dot | <<locked>> | 88% | 36,535 psi | 83% | 1280 fps | 100% |
| Alliant Hercoᴾ | <<locked>> | 100% | 30,269 psi | 68% | 1299 fps | 99.6% |
| Alliant POWER PISTOL* | <<locked>> | 96% | 38,928 psi | 88% | 1493 fps | 92.1% |
| Alliant RED DOT | <<locked>> | 92% | 38,928 psi | 88% | 1280 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 76% | 35,766 psi | 81% | 1378 fps | 100% |
| Alliant UNIQUE | <<locked>> | 96% | 38,740 psi | 88% | 1424 fps | 100% |
| Baschieri & Pellagri 100 | <<locked>> | 88% | 36,651 psi | 83% | 1266 fps | 100% |
| Baschieri & Pellagri 102 Pistolᴾ | <<locked>> | 100% | 29,994 psi | 68% | 1211 fps | 100% |
| Baschieri & Pellagri 103 Pistol | <<locked>> | 84% | 37,579 psi | 85% | 1306 fps | 100% |
| Hodgdon CFE Pistol² | <<locked>> | 68% | 37,666 psi | 85% | 1355 fps | 100% |
| Hodgdon Clays | <<locked>> | 96% | 37,942 psi | 86% | 1194 fps | 100% |
| Hodgdon HP38² | <<locked>> | 68% | 39,552 psi | 89% | 1339 fps | 100% |
| Hodgdon HS-6² | <<locked>> | 76% | 36,216 psi | 82% | 1398 fps | 95.6% |
| Hodgdon Longshot² | <<locked>> | 76% | 39,697 psi | 90% | 1444 fps | 98% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 13,851 psi | 31% | 876 fps | 100% |
| Hodgdon Universal | <<locked>> | 88% | 39,117 psi | 88% | 1368 fps | 100% |
| Lovex D036*² | <<locked>> | 72% | 38,595 psi | 87% | 1447 fps | 94.5% |
| Lovex S011² | <<locked>> | 76% | 37,246 psi | 84% | 1299 fps | 100% |
| Lovex S020 | <<locked>> | 84% | 36,506 psi | 83% | 1352 fps | 100% |
| Maxam CSB 1ᴾ | <<locked>> | 100% | 39,392 psi | 89% | 1352 fps | 100% |
| Maxam CSB 2 | <<locked>> | 96% | 38,856 psi | 88% | 1358 fps | 100% |
| Maxam CSB 3 | <<locked>> | 92% | 37,927 psi | 86% | 1312 fps | 100% |
| Maxam CSB 4 | <<locked>> | 88% | 37,217 psi | 84% | 1283 fps | 100% |
| Maxam CSB 5 | <<locked>> | 84% | 39,247 psi | 89% | 1250 fps | 100% |
| Ramshot Silhouette | <<locked>> | 80% | 39,175 psi | 89% | 1421 fps | 99.9% |
| Ramshot True Blue² | <<locked>> | 72% | 37,260 psi | 84% | 1404 fps | 97.4% |
| Ramshot Zip² | <<locked>> | 68% | 39,421 psi | 89% | 1345 fps | 100% |
| ReloadSwiss RS 12 | <<locked>> | 84% | 39,262 psi | 89% | 1345 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 12,995 psi | 29% | 876 fps | 99.7% |
| ReloadSwiss RS 20 | <<locked>> | 96% | 36,782 psi | 83% | 1404 fps | 100% |
| Rottweil P 801² | <<locked>> | 76% | 37,710 psi | 85% | 1289 fps | 100% |
| Rottweil P 806*ᴾ | <<locked>> | 100% | 32,430 psi | 73% | 1450 fps | 94.9% |
| Shooters World Auto Pistol*² | <<locked>> | 72% | 38,595 psi | 87% | 1447 fps | 94.5% |
| SNPE Vectan A0ᴾ | <<locked>> | 100% | 39,204 psi | 89% | 1375 fps | 100% |
| SNPE Vectan A1 | <<locked>> | 88% | 39,088 psi | 88% | 1332 fps | 100% |
| SNPE Vectan BA 9 | <<locked>> | 88% | 37,826 psi | 86% | 1335 fps | 100% |
| SNPE Vectan BA10 | <<locked>> | 80% | 38,464 psi | 87% | 1201 fps | 100% |
| SNPE Vectan BA7 1/2ᴾ | <<locked>> | 100% | 35,186 psi | 80% | 1365 fps | 96.2% |
| SNPE Vectan BA9 1/2 | <<locked>> | 92% | 39,610 psi | 90% | 1365 fps | 100% |
| SNPE Vectan SP 2* | <<locked>> | 92% | 39,204 psi | 89% | 1516 fps | 94.2% |
| Somchem MP200 | <<locked>> | 88% | 38,624 psi | 87% | 1404 fps | 100% |
| Somchem MS200 | <<locked>> | 92% | 37,840 psi | 86% | 1375 fps | 100% |
| Somchem S221* | <<locked>> | 80% | 36,027 psi | 81% | 1414 fps | 87.7% |
| Vihtavuori 3N37 | <<locked>> | 96% | 38,218 psi | 86% | 1434 fps | 98% |
| Vihtavuori N310² | <<locked>> | 68% | 37,652 psi | 85% | 1198 fps | 100% |
| Vihtavuori N320 | <<locked>> | 88% | 40,001 psi | 90% | 1319 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 24,801 psi | 56% | 1066 fps | 100% |
| Vihtavuori N330 | <<locked>> | 88% | 39,131 psi | 88% | 1375 fps | 100% |
| Vihtavuori N340 | <<locked>> | 92% | 37,753 psi | 85% | 1375 fps | 100% |
| Vihtavuori N350ᴾ | <<locked>> | 100% | 35,882 psi | 81% | 1398 fps | 97.6% |
| Winchester 231² | <<locked>> | 76% | 39,421 psi | 89% | 1345 fps | 100% |
| Winchester 244² | <<locked>> | 64% | 38,812 psi | 88% | 1325 fps | 100% |
| Winchester 572² | <<locked>> | 68% | 39,871 psi | 90% | 1453 fps | 97.6% |
| Winchester AutoComp | <<locked>> | 96% | 38,290 psi | 87% | 1362 fps | 100% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 4.5"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate No. 2*² | <<locked>> | 60% | 18,217 psi | 41% | 1027 fps | 92.1% |
| Accurate No. 5*² | <<locked>> | 60% | 26,034 psi | 59% | 1240 fps | 88.4% |
| Accurate Solo 1000² | <<locked>> | 60% | 20,320 psi | 46% | 1024 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 60% | 16,027 psi | 36% | 978 fps | 98.2% |
| ADI AP 100* | <<locked>> | 96% | 25,788 psi | 58% | 1234 fps | 85.8% |
| ADI AP 70N² | <<locked>> | 60% | 23,293 psi | 53% | 1138 fps | 100% |
| ADI APS 350² | <<locked>> | 60% | 22,307 psi | 50% | 961 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 21,045 psi | 48% | 971 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 20,320 psi | 46% | 997 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 20,827 psi | 47% | 1047 fps | 100% |
| Alliant BE-86² | <<locked>> | 60% | 16,955 psi | 38% | 1004 fps | 99.8% |
| Alliant BULLSEYE² | <<locked>> | 60% | 20,900 psi | 47% | 1119 fps | 97.2% |
| Alliant Green Dot² | <<locked>> | 60% | 19,812 psi | 45% | 1027 fps | 100% |
| Alliant Herco*² | <<locked>> | 60% | 12,459 psi | 28% | 892 fps | 88.7% |
| Alliant POWER PISTOL* | <<locked>> | 80% | 26,295 psi | 59% | 1283 fps | 85.3% |
| Alliant RED DOT² | <<locked>> | 60% | 19,638 psi | 44% | 1004 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 60% | 23,308 psi | 53% | 1168 fps | 97.7% |
| Alliant UNIQUE*² | 4.4 gr | 60% | 16,752 psi | 38% | 1024 fps | 93.6% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 18,246 psi | 41% | 994 fps | 100% |
| Baschieri & Pellagri 102 Pistol² | <<locked>> | 60% | 12,169 psi | 28% | 873 fps | 99.7% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 19,479 psi | 44% | 1050 fps | 100% |
| Hodgdon CFE Pistol² | <<locked>> | 60% | 29,646 psi | 67% | 1250 fps | 100% |
| Hodgdon Clays² | <<locked>> | 60% | 17,622 psi | 40% | 909 fps | 100% |
| Hodgdon HP38² | <<locked>> | 60% | 31,734 psi | 72% | 1243 fps | 100% |
| Hodgdon HS-6*² | <<locked>> | 60% | 21,886 psi | 49% | 1148 fps | 87.9% |
| Hodgdon Longshot*² | <<locked>> | 60% | 23,960 psi | 54% | 1194 fps | 91.7% |
| Hodgdon TrailBoss² | <<locked>> | 60% | 7,484 psi | 17% | 656 fps | 98.1% |
| Hodgdon Universal² | <<locked>> | 60% | 19,406 psi | 44% | 1060 fps | 99.8% |
| Lovex D036*² | <<locked>> | 60% | 25,976 psi | 59% | 1240 fps | 88.4% |
| Lovex S011² | <<locked>> | 60% | 24,265 psi | 55% | 1119 fps | 100% |
| Lovex S020² | <<locked>> | 60% | 18,565 psi | 42% | 1056 fps | 97.2% |
| Maxam CSB 1² | <<locked>> | 60% | 15,548 psi | 35% | 961 fps | 98% |
| Maxam CSB 2² | <<locked>> | 60% | 16,085 psi | 36% | 1004 fps | 100% |
| Maxam CSB 3² | <<locked>> | 60% | 17,912 psi | 40% | 1004 fps | 100% |
| Maxam CSB 4² | <<locked>> | 60% | 19,131 psi | 43% | 1017 fps | 100% |
| Maxam CSB 5² | <<locked>> | 60% | 22,147 psi | 50% | 1030 fps | 100% |
| Ramshot Silhouette² | <<locked>> | 60% | 22,220 psi | 50% | 1152 fps | 95.4% |
| Ramshot True Blue*² | <<locked>> | 60% | 25,092 psi | 57% | 1211 fps | 92.5% |
| Ramshot Zip² | <<locked>> | 60% | 30,618 psi | 69% | 1237 fps | 100% |
| ReloadSwiss RS 12² | <<locked>> | 60% | 21,132 psi | 48% | 1093 fps | 100% |
| ReloadSwiss RS 14*² | <<locked>> | 60% | 7,107 psi | 16% | 643 fps | 93.8% |
| ReloadSwiss RS 20*² | 4.5 gr | 60% | 14,243 psi | 32% | 981 fps | 93.5% |
| Rottweil P 801² | <<locked>> | 60% | 24,410 psi | 55% | 1115 fps | 100% |
| Rottweil P 806* | <<locked>> | 84% | 20,073 psi | 45% | 1220 fps | 87% |
| Shooters World Auto Pistol*² | <<locked>> | 60% | 25,976 psi | 59% | 1240 fps | 88.4% |
| SNPE Vectan A0*² | <<locked>> | 60% | 15,374 psi | 35% | 955 fps | 92.1% |
| SNPE Vectan A1² | <<locked>> | 60% | 19,464 psi | 44% | 1040 fps | 99.9% |
| SNPE Vectan BA 9² | <<locked>> | 60% | 18,637 psi | 42% | 1027 fps | 98.2% |
| SNPE Vectan BA10² | <<locked>> | 60% | 23,888 psi | 54% | 1017 fps | 100% |
| SNPE Vectan BA7 1/2*² | <<locked>> | 72% | 18,318 psi | 41% | 1053 fps | 86.1% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 18,478 psi | 42% | 1033 fps | 99.1% |
| SNPE Vectan SP 2*² | <<locked>> | 76% | 24,801 psi | 56% | 1276 fps | 86.6% |
| Somchem MP200*² | <<locked>> | 60% | 18,884 psi | 43% | 1066 fps | 94% |
| Somchem MS200² | <<locked>> | 60% | 17,274 psi | 39% | 1014 fps | 95.2% |
| Somchem S221*² | <<locked>> | 76% | 31,763 psi | 72% | 1345 fps | 85.4% |
| Vihtavuori 3N37*² | 5.7 gr | 64% | 16,433 psi | 37% | 1033 fps | 85.5% |
| Vihtavuori N310² | <<locked>> | 60% | 29,791 psi | 67% | 1109 fps | 100% |
| Vihtavuori N320² | <<locked>> | 60% | 19,464 psi | 44% | 1037 fps | 100% |
| Vihtavuori N32C Tin Star² | <<locked>> | 60% | 11,037 psi | 25% | 791 fps | 100% |
| Vihtavuori N330² | <<locked>> | 60% | 18,376 psi | 42% | 1063 fps | 99.9% |
| Vihtavuori N340*² | <<locked>> | 60% | 16,737 psi | 38% | 1010 fps | 94% |
| Vihtavuori N350*² | <<locked>> | 68% | 15,751 psi | 36% | 1014 fps | 85.1% |
| Winchester 231² | <<locked>> | 60% | 24,947 psi | 56% | 1148 fps | 100% |
| Winchester 244² | <<locked>> | 60% | 34,229 psi | 77% | 1273 fps | 100% |
| Winchester 572*² | <<locked>> | 60% | 30,676 psi | 69% | 1319 fps | 94.5% |
| Winchester AutoComp ² | <<locked>> | 60% | 16,389 psi | 37% | 994 fps | 97.6% |
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 66 powders for .357 SIG loaded with the .356 | 115gr | Berry's HBRN-TP. SNPE Vectan SP 2 delivers the highest muzzle velocity at 1,516 fps; across all powders the maximum-charge window runs from 876 fps to 1,516 fps. ADI AP 100 gives the best case fill at 100 %, and 50 of the 66 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (305 MPa), the top charges use 29–90 %, leaving at least 10 % headroom. ADI AP 100, Alliant Herco, 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. Vihtavuori 3N37, Alliant UNIQUE, ReloadSwiss RS 20 rank at the top here: for .357 SIG with the .356 | 115gr | Berry's HBRN-TP they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate No. 5, ADI AP 100, Alliant POWER PISTOL 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.