Load Specifications
Load data in caliber .380 ACP with .355 | 115gr | Geco HOLLOW POINT bullet and 33 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Vihtavuori N32C Tin Star.
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 1000² | <<locked>> | 76% | 16,491 psi | 84% | 764 fps | 96.6% |
| Accurate Solo 1250* | <<locked>> | 92% | 16,940 psi | 87% | 807 fps | 89.9% |
| ADI AP 70N*² | <<locked>> | 76% | 16,868 psi | 86% | 823 fps | 91.2% |
| ADI APS 350² | <<locked>> | 68% | 16,549 psi | 85% | 709 fps | 100% |
| ADI APS 450² | <<locked>> | 72% | 17,695 psi | 90% | 751 fps | 100% |
| ADI AS 30² | <<locked>> | 76% | 16,317 psi | 83% | 768 fps | 99.6% |
| ADI AS 50N | <<locked>> | 80% | 17,550 psi | 90% | 804 fps | 96.8% |
| Alliant BE-86* | <<locked>> | 88% | 15,635 psi | 80% | 794 fps | 92% |
| Alliant Green Dot | <<locked>> | 84% | 17,347 psi | 89% | 804 fps | 96.8% |
| Alliant RED DOT | <<locked>> | 84% | 17,463 psi | 89% | 804 fps | 99.7% |
| Baschieri & Pellagri 100* | <<locked>> | 84% | 17,100 psi | 87% | 787 fps | 94.9% |
| Baschieri & Pellagri 102 Pistol*ᴾ | <<locked>> | 100% | 13,097 psi | 67% | 748 fps | 93.7% |
| Baschieri & Pellagri 103 Pistol | <<locked>> | 84% | 16,955 psi | 87% | 823 fps | 96% |
| Hodgdon CFE Pistol*² | <<locked>> | 68% | 17,216 psi | 88% | 823 fps | 88.7% |
| Hodgdon Clays | <<locked>> | 80% | 16,607 psi | 85% | 735 fps | 100% |
| Hodgdon Universal* | <<locked>> | 84% | 16,868 psi | 86% | 823 fps | 91.2% |
| Lovex S011*² | <<locked>> | 68% | 16,505 psi | 84% | 768 fps | 91.3% |
| Maxam CSB 1* | <<locked>> | 96% | 17,245 psi | 88% | 810 fps | 90.4% |
| Maxam CSB 2ᴾ | <<locked>> | 100% | 16,462 psi | 84% | 863 fps | 96.3% |
| Maxam CSB 3 | <<locked>> | 88% | 17,260 psi | 88% | 810 fps | 95.2% |
| Maxam CSB 4 | <<locked>> | 80% | 16,897 psi | 86% | 797 fps | 97.5% |
| Maxam CSB 5² | <<locked>> | 76% | 17,506 psi | 89% | 797 fps | 100% |
| ReloadSwiss RS 12 | <<locked>> | 88% | 17,231 psi | 88% | 876 fps | 98.8% |
| Rottweil P 801² | <<locked>> | 76% | 17,158 psi | 88% | 846 fps | 99.7% |
| SNPE Vectan A1*² | <<locked>> | 76% | 15,302 psi | 78% | 758 fps | 90.2% |
| SNPE Vectan BA10² | <<locked>> | 68% | 17,680 psi | 90% | 751 fps | 100% |
| SNPE Vectan BA9 1/2* | <<locked>> | 84% | 16,520 psi | 84% | 797 fps | 89.1% |
| Vihtavuori N310² | <<locked>> | 64% | 16,230 psi | 83% | 768 fps | 100% |
| Vihtavuori N320 | <<locked>> | 84% | 16,940 psi | 87% | 823 fps | 97.8% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 10,240 psi | 52% | 679 fps | 98.5% |
| Vihtavuori N330* | <<locked>> | 88% | 17,695 psi | 90% | 853 fps | 92.5% |
| Winchester 231*² | <<locked>> | 68% | 16,505 psi | 84% | 791 fps | 91.2% |
| Winchester AutoComp * | <<locked>> | 92% | 16,288 psi | 83% | 804 fps | 87.7% |
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*² | <<locked>> | 60% | 11,443 psi | 58% | 656 fps | 91.4% |
| Accurate Solo 1250* | <<locked>> | 80% | 13,300 psi | 68% | 732 fps | 85.4% |
| ADI AP 70N*² | <<locked>> | 64% | 12,401 psi | 63% | 725 fps | 85.7% |
| ADI APS 350² | <<locked>> | 60% | 13,329 psi | 68% | 653 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 13,256 psi | 68% | 673 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 10,138 psi | 52% | 630 fps | 95.1% |
| ADI AS 50N*² | <<locked>> | 60% | 10,428 psi | 53% | 646 fps | 88.9% |
| Alliant BE-86*² | <<locked>> | 72% | 10,617 psi | 54% | 682 fps | 85.1% |
| Alliant Green Dot*² | <<locked>> | 60% | 10,312 psi | 53% | 643 fps | 88.8% |
| Alliant RED DOT*² | <<locked>> | 60% | 9,834 psi | 50% | 636 fps | 93.9% |
| Baschieri & Pellagri 100*² | <<locked>> | 64% | 10,095 psi | 52% | 636 fps | 86.1% |
| Baschieri & Pellagri 102 Pistol* | <<locked>> | 84% | 9,703 psi | 50% | 659 fps | 88.2% |
| Baschieri & Pellagri 103 Pistol*² | <<locked>> | 64% | 9,993 psi | 51% | 666 fps | 87.3% |
| Hodgdon CFE Pistol*² | <<locked>> | 64% | 14,997 psi | 77% | 781 fps | 86.1% |
| Hodgdon Clays² | <<locked>> | 60% | 10,095 psi | 52% | 604 fps | 98.8% |
| Hodgdon Universal*² | <<locked>> | 72% | 12,401 psi | 63% | 725 fps | 85.7% |
| Lovex S011*² | <<locked>> | 60% | 12,734 psi | 65% | 689 fps | 86.8% |
| Maxam CSB 1* | <<locked>> | 84% | 13,750 psi | 70% | 738 fps | 86.4% |
| Maxam CSB 2*² | <<locked>> | 76% | 9,471 psi | 48% | 689 fps | 86.3% |
| Maxam CSB 3*² | <<locked>> | 68% | 11,313 psi | 58% | 682 fps | 88.3% |
| Maxam CSB 4*² | <<locked>> | 60% | 9,732 psi | 50% | 636 fps | 89.3% |
| Maxam CSB 5² | <<locked>> | 60% | 10,617 psi | 54% | 659 fps | 98.1% |
| ReloadSwiss RS 12*² | <<locked>> | 60% | 7,992 psi | 41% | 646 fps | 86.9% |
| Rottweil P 801² | <<locked>> | 60% | 10,298 psi | 53% | 699 fps | 95% |
| SNPE Vectan A1*² | <<locked>> | 68% | 13,184 psi | 67% | 712 fps | 87.5% |
| SNPE Vectan BA10² | <<locked>> | 60% | 14,605 psi | 75% | 699 fps | 100% |
| SNPE Vectan BA9 1/2*² | <<locked>> | 76% | 14,170 psi | 72% | 751 fps | 86.4% |
| Vihtavuori N310² | <<locked>> | 60% | 14,591 psi | 75% | 741 fps | 100% |
| Vihtavuori N320*² | <<locked>> | 60% | 8,963 psi | 46% | 636 fps | 87.8% |
| Vihtavuori N32C Tin Star*² | 1.5 gr | 64% | 5,236 psi | 27% | 495 fps | 86.5% |
| Vihtavuori N330*² | <<locked>> | 76% | 12,981 psi | 66% | 751 fps | 86.5% |
| Winchester 231*² | <<locked>> | 60% | 13,068 psi | 67% | 719 fps | 87% |
| Winchester AutoComp * | <<locked>> | 84% | 14,141 psi | 72% | 761 fps | 85.1% |
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 33 powders for .380 ACP loaded with the .355 | 115gr | Geco HOLLOW POINT. ReloadSwiss RS 12 delivers the highest muzzle velocity at 876 fps; across all powders the maximum-charge window runs from 679 fps to 876 fps. Baschieri & Pellagri 102 Pistol gives the best case fill at 100 %, and 20 of the 33 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (135 MPa), the top charges use 52–90 %, leaving at least 10 % headroom. Baschieri & Pellagri 102 Pistol, Maxam CSB 2, 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. Vihtavuori N32C Tin Star rank at the top here: for .380 ACP with the .355 | 115gr | Geco HOLLOW POINT they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate Solo 1250, ADI AP 70N, Alliant BE-86 burn incompletely and react more sensitively to barrel length and temperature. Accurate Solo 1000, Accurate Solo 1250, ADI AP 70N 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.