Load Specifications
Load data in caliber .380 ACP with .355 | 75gr | Lehigh Defense Controlled Fracturing bullet and 18 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Maxam CSB 5 and Hodgdon Clays.
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* | <<locked>> | 92% | 17,521 psi | 89% | 1024 fps | 91.8% |
| ADI APS 350 | <<locked>> | 80% | 17,013 psi | 87% | 961 fps | 100% |
| ADI APS 450 | <<locked>> | 84% | 17,274 psi | 88% | 988 fps | 99.8% |
| ADI AS 30 | <<locked>> | 96% | 16,578 psi | 85% | 1027 fps | 96.5% |
| ADI AS 50N* | <<locked>> | 92% | 15,577 psi | 80% | 1014 fps | 89.2% |
| Alliant Green Dot* | <<locked>> | 96% | 15,345 psi | 78% | 1010 fps | 89.1% |
| Alliant RED DOTᴾ | <<locked>> | 100% | 15,954 psi | 81% | 1037 fps | 95.4% |
| Baschieri & Pellagri 103 Pistol* | <<locked>> | 96% | 16,650 psi | 85% | 1053 fps | 88.7% |
| Hodgdon Clays | <<locked>> | 96% | 17,289 psi | 88% | 991 fps | 99.7% |
| Hodgdon TiteGroup*² | <<locked>> | 68% | 17,637 psi | 90% | 1047 fps | 93.9% |
| Maxam CSB 3*ᴾ | <<locked>> | 100% | 16,505 psi | 84% | 1040 fps | 87.9% |
| Maxam CSB 4* | <<locked>> | 96% | 16,781 psi | 86% | 1043 fps | 91.8% |
| Maxam CSB 5 | <<locked>> | 92% | 16,694 psi | 85% | 1043 fps | 98.6% |
| ReloadSwiss RS 12*ᴾ | <<locked>> | 100% | 14,605 psi | 75% | 1093 fps | 91.3% |
| Rottweil P 801 | <<locked>> | 96% | 17,680 psi | 90% | 1138 fps | 96.9% |
| SNPE Vectan BA10² | <<locked>> | 76% | 15,896 psi | 81% | 958 fps | 99.4% |
| Vihtavuori N310² | <<locked>> | 76% | 15,650 psi | 80% | 1024 fps | 100% |
| Vihtavuori N320*ᴾ | <<locked>> | 100% | 17,274 psi | 88% | 1086 fps | 92.5% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 3.5"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate Solo 1000* | <<locked>> | 80% | 12,807 psi | 65% | 902 fps | 86.2% |
| ADI APS 350² | <<locked>> | 60% | 10,341 psi | 53% | 797 fps | 97.7% |
| ADI APS 450*² | <<locked>> | 60% | 9,137 psi | 47% | 768 fps | 93.3% |
| ADI AS 30*² | <<locked>> | 72% | 9,036 psi | 46% | 807 fps | 86.7% |
| ADI AS 50N* | <<locked>> | 84% | 13,373 psi | 68% | 951 fps | 86.3% |
| Alliant Green Dot* | <<locked>> | 88% | 13,155 psi | 67% | 951 fps | 86.2% |
| Alliant RED DOT*² | <<locked>> | 76% | 9,485 psi | 48% | 843 fps | 86.7% |
| Baschieri & Pellagri 103 Pistol* | <<locked>> | 92% | 14,779 psi | 75% | 1007 fps | 86.5% |
| Hodgdon Clays*² | 1.6 gr | 60% | 7,585 psi | 39% | 712 fps | 89.6% |
| Hodgdon TiteGroup*² | <<locked>> | 60% | 13,982 psi | 71% | 958 fps | 90.1% |
| Maxam CSB 3* | <<locked>> | 96% | 14,286 psi | 73% | 981 fps | 85.1% |
| Maxam CSB 4* | <<locked>> | 84% | 12,227 psi | 62% | 925 fps | 86.1% |
| Maxam CSB 5*² | 1.8 gr | 60% | 7,353 psi | 38% | 748 fps | 85.2% |
| ReloadSwiss RS 12* | <<locked>> | 92% | 11,690 psi | 60% | 1001 fps | 86.7% |
| Rottweil P 801*² | <<locked>> | 76% | 9,427 psi | 48% | 906 fps | 86.6% |
| SNPE Vectan BA10*² | <<locked>> | 60% | 10,066 psi | 51% | 801 fps | 94.8% |
| Vihtavuori N310² | <<locked>> | 60% | 9,616 psi | 49% | 856 fps | 96% |
| Vihtavuori N320* | <<locked>> | 88% | 12,618 psi | 64% | 961 fps | 86.5% |
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 18 powders for .380 ACP loaded with the .355 | 75gr | Lehigh Defense Controlled Fracturing. Rottweil P 801 delivers the highest muzzle velocity at 1,138 fps; across all powders the maximum-charge window runs from 958 fps to 1,138 fps. Alliant RED DOT gives the best case fill at 100 %, and 15 of the 18 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (135 MPa), the top charges use 75–90 %, leaving at least 10 % headroom. Alliant RED DOT, Maxam CSB 3, ReloadSwiss RS 12 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. Maxam CSB 5, Hodgdon Clays rank at the top here: for .380 ACP with the .355 | 75gr | Lehigh Defense Controlled Fracturing they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate Solo 1000, ADI AS 50N, Alliant Green Dot burn incompletely and react more sensitively to barrel length and temperature. Accurate Solo 1000, ADI APS 350, ADI APS 450 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.