Load Specifications
Load data in caliber .380 ACP with .358 | 80gr | Rim Rock DEWC bullet and 27 powders. The key underlying parameters are shown in the table above.
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: 3.5"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate Solo 1000*² | <<locked>> | 76% | 16,882 psi | 86% | 1024 fps | 94.8% |
| ADI AP 70N*² | <<locked>> | 76% | 17,579 psi | 90% | 1102 fps | 88.8% |
| ADI APS 350² | <<locked>> | 68% | 17,318 psi | 88% | 968 fps | 100% |
| ADI APS 450² | <<locked>> | 68% | 15,867 psi | 81% | 965 fps | 100% |
| ADI AS 30 | <<locked>> | 80% | 17,318 psi | 88% | 1043 fps | 99% |
| ADI AS 50N*² | <<locked>> | 76% | 17,143 psi | 88% | 1053 fps | 94.3% |
| Alliant BE-86* | <<locked>> | 88% | 16,824 psi | 86% | 1073 fps | 90.1% |
| Alliant Green Dot* | <<locked>> | 80% | 16,897 psi | 86% | 1050 fps | 94.2% |
| Alliant RED DOT | <<locked>> | 80% | 15,954 psi | 81% | 1027 fps | 97.8% |
| Baschieri & Pellagri 100* | <<locked>> | 80% | 15,867 psi | 81% | 1010 fps | 91.2% |
| Baschieri & Pellagri 102 Pistol*ᴾ | <<locked>> | 100% | 13,706 psi | 70% | 997 fps | 91.3% |
| Baschieri & Pellagri 103 Pistol* | <<locked>> | 80% | 16,056 psi | 82% | 1056 fps | 92.5% |
| Hodgdon Clays | <<locked>> | 80% | 16,955 psi | 87% | 988 fps | 100% |
| Hodgdon Universal* | <<locked>> | 84% | 17,579 psi | 90% | 1102 fps | 88.8% |
| Lovex S011*² | <<locked>> | 68% | 16,984 psi | 87% | 1027 fps | 89% |
| Maxam CSB 2* | <<locked>> | 96% | 16,172 psi | 83% | 1119 fps | 93% |
| Maxam CSB 3* | <<locked>> | 84% | 16,969 psi | 87% | 1060 fps | 92.3% |
| Maxam CSB 4 | <<locked>> | 80% | 16,476 psi | 84% | 1043 fps | 95% |
| Maxam CSB 5² | <<locked>> | 76% | 16,955 psi | 87% | 1047 fps | 99.9% |
| ReloadSwiss RS 12 | <<locked>> | 84% | 16,360 psi | 84% | 1125 fps | 96% |
| Rottweil P 801² | <<locked>> | 76% | 17,158 psi | 88% | 1109 fps | 98.5% |
| SNPE Vectan A1*² | <<locked>> | 76% | 16,259 psi | 83% | 1020 fps | 88.3% |
| SNPE Vectan BA10² | <<locked>> | 64% | 15,853 psi | 81% | 965 fps | 100% |
| Vihtavuori N320* | <<locked>> | 80% | 15,693 psi | 80% | 1053 fps | 94.6% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 10,747 psi | 55% | 906 fps | 96.8% |
| Vihtavuori N330* | <<locked>> | 84% | 16,331 psi | 83% | 1083 fps | 87.6% |
| Winchester 231*² | <<locked>> | 68% | 16,723 psi | 85% | 1047 fps | 88.4% |
Start Load - Barrel Length: 3.5"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate Solo 1000*² | <<locked>> | 60% | 11,632 psi | 59% | 873 fps | 88.7% |
| ADI AP 70N*² | <<locked>> | 72% | 15,867 psi | 81% | 1056 fps | 86.8% |
| ADI APS 350² | <<locked>> | 60% | 13,909 psi | 71% | 892 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 12,937 psi | 66% | 889 fps | 99.5% |
| ADI AS 30*² | <<locked>> | 60% | 11,023 psi | 56% | 863 fps | 93.7% |
| ADI AS 50N*² | <<locked>> | 60% | 11,313 psi | 58% | 883 fps | 87% |
| Alliant BE-86* | <<locked>> | 80% | 13,677 psi | 70% | 988 fps | 86.3% |
| Alliant Green Dot*² | <<locked>> | 60% | 10,530 psi | 54% | 856 fps | 85.8% |
| Alliant RED DOT*² | <<locked>> | 60% | 9,979 psi | 51% | 843 fps | 91.1% |
| Baschieri & Pellagri 100*² | <<locked>> | 68% | 11,734 psi | 60% | 892 fps | 85.6% |
| Baschieri & Pellagri 102 Pistol* | <<locked>> | 88% | 10,617 psi | 54% | 896 fps | 86.2% |
| Baschieri & Pellagri 103 Pistol*² | <<locked>> | 68% | 11,690 psi | 60% | 928 fps | 86.7% |
| Hodgdon Clays² | <<locked>> | 60% | 10,573 psi | 54% | 817 fps | 97.7% |
| Hodgdon Universal* | <<locked>> | 80% | 15,867 psi | 81% | 1056 fps | 86.8% |
| Lovex S011*² | <<locked>> | 64% | 15,142 psi | 77% | 981 fps | 86.9% |
| Maxam CSB 2* | <<locked>> | 80% | 10,994 psi | 56% | 955 fps | 85.2% |
| Maxam CSB 3*² | <<locked>> | 72% | 12,734 psi | 65% | 942 fps | 87.2% |
| Maxam CSB 4*² | <<locked>> | 60% | 9,950 psi | 51% | 843 fps | 86.1% |
| Maxam CSB 5² | <<locked>> | 60% | 11,197 psi | 57% | 892 fps | 96.6% |
| ReloadSwiss RS 12*² | <<locked>> | 64% | 9,602 psi | 49% | 909 fps | 86.4% |
| Rottweil P 801*² | <<locked>> | 60% | 10,675 psi | 55% | 925 fps | 92.2% |
| SNPE Vectan A1*² | <<locked>> | 72% | 14,692 psi | 75% | 981 fps | 86.4% |
| SNPE Vectan BA10² | <<locked>> | 60% | 14,808 psi | 76% | 938 fps | 100% |
| Vihtavuori N320*² | <<locked>> | 64% | 10,095 psi | 52% | 876 fps | 86.4% |
| Vihtavuori N32C Tin Star*² | <<locked>> | 72% | 5,976 psi | 31% | 692 fps | 85.5% |
| Vihtavuori N330* | <<locked>> | 80% | 14,649 psi | 75% | 1033 fps | 85.2% |
| Winchester 231*² | <<locked>> | 64% | 15,055 psi | 77% | 1004 fps | 86.4% |
* 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 27 powders for .380 ACP loaded with the .358 | 80gr | Rim Rock DEWC. ReloadSwiss RS 12 delivers the highest muzzle velocity at 1,125 fps; across all powders the maximum-charge window runs from 906 fps to 1,125 fps. Baschieri & Pellagri 102 Pistol gives the best case fill at 100 %, and 16 of the 27 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (135 MPa), the top charges use 55–90 %, leaving at least 10 % headroom. Baschieri & Pellagri 102 Pistol, Vihtavuori N32C Tin Star 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. As outliers, Accurate Solo 1000, ADI AP 70N, ADI AS 50N burn incompletely and react more sensitively to barrel length and temperature. Accurate Solo 1000, ADI AP 70N, ADI APS 350 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.