Load Specifications
Load data in caliber .38 Super Auto with .358 | 80gr | Rim Rock DEWC bullet and 57 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 20, Maxam CSB 2 and Alliant UNIQUE.
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: 5"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate No. 2* | <<locked>> | 84% | 29,617 psi | 89% | 1565 fps | 94.9% |
| Accurate Solo 1000 | <<locked>> | 80% | 27,615 psi | 83% | 1480 fps | 100% |
| Accurate Solo 1250 | <<locked>> | 92% | 29,211 psi | 88% | 1572 fps | 100% |
| ADI AP 70N² | <<locked>> | 76% | 28,514 psi | 85% | 1581 fps | 100% |
| ADI APS 350² | <<locked>> | 76% | 28,398 psi | 85% | 1362 fps | 100% |
| ADI APS 450 | <<locked>> | 80% | 29,341 psi | 88% | 1417 fps | 100% |
| ADI AS 30 | <<locked>> | 84% | 28,805 psi | 86% | 1473 fps | 100% |
| ADI AS 50N | <<locked>> | 80% | 28,703 psi | 86% | 1522 fps | 100% |
| Alliant BE-86 | <<locked>> | 88% | 27,963 psi | 84% | 1542 fps | 100% |
| Alliant BULLSEYE | <<locked>> | 80% | 29,269 psi | 88% | 1627 fps | 98.1% |
| Alliant Green Dot | <<locked>> | 84% | 28,311 psi | 85% | 1519 fps | 100% |
| Alliant Hercoᴾ | <<locked>> | 100% | 24,265 psi | 73% | 1516 fps | 95.4% |
| Alliant RED DOT | <<locked>> | 88% | 29,834 psi | 89% | 1519 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 72% | 26,977 psi | 81% | 1578 fps | 96.5% |
| Alliant UNIQUE | <<locked>> | 92% | 28,442 psi | 85% | 1621 fps | 97.2% |
| Baschieri & Pellagri 100 | <<locked>> | 84% | 27,775 psi | 83% | 1493 fps | 100% |
| Baschieri & Pellagri 102 Pistolᴾ | <<locked>> | 100% | 23,859 psi | 72% | 1447 fps | 100% |
| Baschieri & Pellagri 103 Pistol | <<locked>> | 80% | 27,528 psi | 83% | 1512 fps | 100% |
| Hodgdon CFE Pistol² | <<locked>> | 64% | 26,905 psi | 81% | 1545 fps | 99.4% |
| Hodgdon Clays | <<locked>> | 88% | 28,718 psi | 86% | 1404 fps | 100% |
| Hodgdon HP38² | <<locked>> | 64% | 29,820 psi | 89% | 1562 fps | 100% |
| Hodgdon HS-6*² | <<locked>> | 76% | 29,747 psi | 89% | 1621 fps | 88.6% |
| Hodgdon Longshot*² | <<locked>> | 72% | 28,645 psi | 86% | 1604 fps | 90.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 10,167 psi | 30% | 1027 fps | 98.3% |
| Hodgdon Universal | <<locked>> | 84% | 28,514 psi | 85% | 1581 fps | 100% |
| Lovex S011² | <<locked>> | 72% | 28,065 psi | 84% | 1512 fps | 100% |
| Lovex S020 | <<locked>> | 84% | 29,240 psi | 88% | 1598 fps | 98.8% |
| Maxam CSB 1 | <<locked>> | 96% | 29,805 psi | 89% | 1575 fps | 100% |
| Maxam CSB 2 | <<locked>> | 92% | 27,934 psi | 84% | 1585 fps | 100% |
| Maxam CSB 3 | <<locked>> | 88% | 28,935 psi | 87% | 1545 fps | 100% |
| Maxam CSB 4 | <<locked>> | 84% | 28,964 psi | 87% | 1522 fps | 100% |
| Maxam CSB 5² | <<locked>> | 76% | 27,398 psi | 82% | 1444 fps | 100% |
| Ramshot Silhouette² | <<locked>> | 76% | 29,225 psi | 88% | 1614 fps | 95.5% |
| Ramshot True Blue*² | <<locked>> | 72% | 30,168 psi | 90% | 1627 fps | 91.2% |
| Ramshot Zip² | <<locked>> | 64% | 28,689 psi | 86% | 1549 fps | 100% |
| ReloadSwiss RS 12 | <<locked>> | 80% | 28,500 psi | 85% | 1578 fps | 100% |
| ReloadSwiss RS 14*ᴾ | <<locked>> | 100% | 9,108 psi | 27% | 1001 fps | 93% |
| ReloadSwiss RS 20 | <<locked>> | 96% | 29,298 psi | 88% | 1657 fps | 99.1% |
| Rottweil P 801² | <<locked>> | 76% | 30,095 psi | 90% | 1558 fps | 100% |
| SNPE Vectan A0 | <<locked>> | 92% | 28,079 psi | 84% | 1549 fps | 96.8% |
| SNPE Vectan A1 | <<locked>> | 80% | 27,122 psi | 81% | 1506 fps | 100% |
| SNPE Vectan BA 9 | <<locked>> | 84% | 29,095 psi | 87% | 1552 fps | 99.5% |
| SNPE Vectan BA10² | <<locked>> | 72% | 27,427 psi | 82% | 1385 fps | 100% |
| SNPE Vectan BA7 1/2*ᴾ | <<locked>> | 100% | 28,456 psi | 85% | 1575 fps | 89.3% |
| SNPE Vectan BA9 1/2 | <<locked>> | 84% | 27,673 psi | 83% | 1545 fps | 99.8% |
| Somchem MP200 | <<locked>> | 84% | 28,384 psi | 85% | 1594 fps | 96% |
| Somchem MS200 | <<locked>> | 88% | 28,631 psi | 86% | 1581 fps | 98% |
| Vihtavuori 3N37* | <<locked>> | 92% | 27,731 psi | 83% | 1601 fps | 90.2% |
| Vihtavuori N310² | <<locked>> | 64% | 28,326 psi | 85% | 1421 fps | 100% |
| Vihtavuori N320 | <<locked>> | 84% | 29,791 psi | 89% | 1552 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 18,550 psi | 56% | 1273 fps | 100% |
| Vihtavuori N330 | <<locked>> | 84% | 28,413 psi | 85% | 1594 fps | 100% |
| Vihtavuori N340 | <<locked>> | 88% | 27,688 psi | 83% | 1565 fps | 97% |
| Vihtavuori N350*ᴾ | <<locked>> | 100% | 28,514 psi | 85% | 1614 fps | 91% |
| Winchester 231² | <<locked>> | 72% | 29,501 psi | 88% | 1565 fps | 100% |
| Winchester 572*² | <<locked>> | 64% | 28,500 psi | 85% | 1614 fps | 89.3% |
| Winchester AutoComp | <<locked>> | 92% | 28,514 psi | 85% | 1568 fps | 99.7% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 5"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate No. 2*² | <<locked>> | 64% | 16,331 psi | 49% | 1250 fps | 85.2% |
| Accurate Solo 1000² | <<locked>> | 60% | 16,230 psi | 49% | 1220 fps | 99.7% |
| Accurate Solo 1250*² | <<locked>> | 60% | 12,778 psi | 38% | 1152 fps | 91.6% |
| ADI AP 70N² | <<locked>> | 60% | 18,492 psi | 55% | 1348 fps | 97.6% |
| ADI APS 350² | <<locked>> | 60% | 19,247 psi | 58% | 1191 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 18,405 psi | 55% | 1207 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 16,085 psi | 48% | 1204 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 16,621 psi | 50% | 1250 fps | 99.5% |
| Alliant BE-86*² | <<locked>> | 60% | 12,778 psi | 38% | 1161 fps | 94.6% |
| Alliant BULLSEYE*² | <<locked>> | 60% | 17,013 psi | 51% | 1312 fps | 90.4% |
| Alliant Green Dot² | <<locked>> | 60% | 15,229 psi | 46% | 1211 fps | 99% |
| Alliant Herco*² | <<locked>> | 76% | 13,880 psi | 42% | 1214 fps | 85.8% |
| Alliant RED DOT² | <<locked>> | 60% | 15,418 psi | 46% | 1204 fps | 100% |
| Alliant Sport Pistol*² | <<locked>> | 60% | 19,203 psi | 58% | 1378 fps | 91.5% |
| Alliant UNIQUE*² | 5.4 gr | 64% | 14,156 psi | 42% | 1227 fps | 85.9% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 14,779 psi | 44% | 1191 fps | 97.8% |
| Baschieri & Pellagri 102 Pistol*² | <<locked>> | 60% | 8,673 psi | 26% | 994 fps | 92.8% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 15,055 psi | 45% | 1234 fps | 98.7% |
| Hodgdon CFE Pistol² | <<locked>> | 60% | 23,337 psi | 70% | 1467 fps | 98.4% |
| Hodgdon Clays² | <<locked>> | 60% | 14,779 psi | 44% | 1119 fps | 100% |
| Hodgdon HP38² | <<locked>> | 60% | 25,715 psi | 77% | 1486 fps | 100% |
| Hodgdon HS-6*² | <<locked>> | 72% | 26,150 psi | 78% | 1545 fps | 86.4% |
| Hodgdon Longshot*² | <<locked>> | 64% | 22,089 psi | 66% | 1457 fps | 85.6% |
| Hodgdon TrailBoss*² | <<locked>> | 60% | 4,830 psi | 14% | 728 fps | 86.6% |
| Hodgdon Universal² | <<locked>> | 60% | 15,026 psi | 45% | 1243 fps | 95% |
| Lovex S011² | <<locked>> | 60% | 20,073 psi | 60% | 1342 fps | 98.8% |
| Lovex S020*² | <<locked>> | 60% | 13,909 psi | 42% | 1211 fps | 88.8% |
| Maxam CSB 1*² | <<locked>> | 60% | 11,879 psi | 36% | 1112 fps | 90.5% |
| Maxam CSB 2² | 4.7 gr | 60% | 11,168 psi | 33% | 1145 fps | 95.3% |
| Maxam CSB 3² | <<locked>> | 60% | 14,083 psi | 42% | 1188 fps | 97.2% |
| Maxam CSB 4² | <<locked>> | 60% | 15,331 psi | 46% | 1217 fps | 99.5% |
| Maxam CSB 5² | <<locked>> | 60% | 17,390 psi | 52% | 1240 fps | 100% |
| Ramshot Silhouette*² | <<locked>> | 60% | 17,622 psi | 53% | 1332 fps | 87.3% |
| Ramshot True Blue*² | <<locked>> | 64% | 23,279 psi | 70% | 1476 fps | 86.6% |
| Ramshot Zip² | <<locked>> | 60% | 25,469 psi | 76% | 1486 fps | 99.9% |
| ReloadSwiss RS 12² | <<locked>> | 60% | 15,461 psi | 46% | 1286 fps | 99.9% |
| ReloadSwiss RS 14*² | <<locked>> | 76% | 6,092 psi | 18% | 827 fps | 85.4% |
| ReloadSwiss RS 20*² | 5.6 gr | 64% | 12,386 psi | 37% | 1181 fps | 85.4% |
| Rottweil P 801² | <<locked>> | 60% | 19,160 psi | 57% | 1345 fps | 100% |
| SNPE Vectan A0*² | <<locked>> | 68% | 15,519 psi | 47% | 1227 fps | 87.6% |
| SNPE Vectan A1² | <<locked>> | 60% | 15,679 psi | 47% | 1227 fps | 96.4% |
| SNPE Vectan BA 9*² | <<locked>> | 60% | 14,968 psi | 45% | 1204 fps | 91.9% |
| SNPE Vectan BA10² | <<locked>> | 60% | 20,653 psi | 62% | 1260 fps | 100% |
| SNPE Vectan BA7 1/2* | <<locked>> | 92% | 23,844 psi | 71% | 1473 fps | 86.1% |
| SNPE Vectan BA9 1/2*² | <<locked>> | 60% | 14,112 psi | 42% | 1198 fps | 92.9% |
| Somchem MP200*² | <<locked>> | 64% | 16,346 psi | 49% | 1286 fps | 87.1% |
| Somchem MS200*² | <<locked>> | 60% | 13,677 psi | 41% | 1178 fps | 86.7% |
| Vihtavuori 3N37* | <<locked>> | 84% | 21,669 psi | 65% | 1463 fps | 85.8% |
| Vihtavuori N310² | <<locked>> | 60% | 24,279 psi | 73% | 1355 fps | 100% |
| Vihtavuori N320² | <<locked>> | 60% | 15,389 psi | 46% | 1247 fps | 99.7% |
| Vihtavuori N32C Tin Star² | <<locked>> | 60% | 7,614 psi | 23% | 922 fps | 98.6% |
| Vihtavuori N330*² | <<locked>> | 60% | 13,692 psi | 41% | 1230 fps | 94.6% |
| Vihtavuori N340*² | <<locked>> | 64% | 14,156 psi | 42% | 1211 fps | 86.5% |
| Vihtavuori N350* | <<locked>> | 88% | 20,871 psi | 63% | 1437 fps | 85.3% |
| Winchester 231² | <<locked>> | 60% | 20,436 psi | 61% | 1375 fps | 98.8% |
| Winchester 572*² | <<locked>> | 60% | 24,207 psi | 73% | 1516 fps | 86.3% |
| Winchester AutoComp *² | <<locked>> | 60% | 12,241 psi | 37% | 1138 fps | 89.4% |
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 57 powders for .38 Super Auto loaded with the .358 | 80gr | Rim Rock DEWC. ReloadSwiss RS 20 delivers the highest muzzle velocity at 1,657 fps; across all powders the maximum-charge window runs from 1,001 fps to 1,657 fps. Alliant Herco gives the best case fill at 100 %, and 40 of the 57 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (230 MPa), the top charges use 27–90 %, leaving at least 10 % headroom. Alliant Herco, Baschieri & Pellagri 102 Pistol, Hodgdon TrailBoss 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. ReloadSwiss RS 20, Maxam CSB 2, Alliant UNIQUE rank at the top here: for .38 Super Auto with the .358 | 80gr | Rim Rock DEWC they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate No. 2, Hodgdon HS-6, Hodgdon Longshot 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.