Load Specifications
Load data in caliber .380 ACP with .355 | 95gr | Sierra Tournament Master bullet and 32 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Maxam CSB 2 and 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>> | 72% | 17,709 psi | 90% | 951 fps | 97.7% |
| Accurate Solo 1250* | <<locked>> | 84% | 17,129 psi | 87% | 974 fps | 90.5% |
| ADI AP 70N*² | <<locked>> | 68% | 16,389 psi | 84% | 978 fps | 90.9% |
| ADI APS 350² | <<locked>> | 64% | 17,666 psi | 90% | 883 fps | 100% |
| ADI APS 450² | <<locked>> | 68% | 17,390 psi | 89% | 902 fps | 100% |
| ADI AS 30² | <<locked>> | 72% | 17,187 psi | 88% | 942 fps | 99.9% |
| ADI AS 50N² | <<locked>> | 72% | 17,245 psi | 88% | 961 fps | 96.9% |
| Alliant BE-86* | <<locked>> | 84% | 17,564 psi | 90% | 997 fps | 94.1% |
| Alliant Green Dot² | <<locked>> | 76% | 17,042 psi | 87% | 961 fps | 96.8% |
| Alliant RED DOT² | <<locked>> | 76% | 16,926 psi | 86% | 955 fps | 99.6% |
| Baschieri & Pellagri 100² | <<locked>> | 76% | 16,940 psi | 87% | 948 fps | 95.2% |
| Baschieri & Pellagri 102 Pistolᴾ | <<locked>> | 100% | 16,737 psi | 85% | 984 fps | 97.2% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 76% | 17,042 psi | 87% | 984 fps | 96.2% |
| Hodgdon Clays² | <<locked>> | 76% | 17,477 psi | 89% | 906 fps | 100% |
| Hodgdon TrailBoss*ᴾ | <<locked>> | 100% | 7,136 psi | 36% | 676 fps | 87.7% |
| Hodgdon Universal*² | <<locked>> | 76% | 16,389 psi | 84% | 978 fps | 90.9% |
| Lovex S011*² | <<locked>> | 64% | 16,839 psi | 86% | 938 fps | 92.3% |
| Maxam CSB 1* | <<locked>> | 84% | 16,244 psi | 83% | 955 fps | 89.8% |
| Maxam CSB 2 | <<locked>> | 88% | 16,375 psi | 84% | 1024 fps | 96.1% |
| Maxam CSB 3 | <<locked>> | 80% | 17,202 psi | 88% | 974 fps | 95.4% |
| Maxam CSB 4² | <<locked>> | 76% | 17,550 psi | 90% | 974 fps | 98% |
| Maxam CSB 5² | <<locked>> | 68% | 15,795 psi | 81% | 922 fps | 100% |
| ReloadSwiss RS 12² | <<locked>> | 76% | 16,592 psi | 85% | 1024 fps | 98.2% |
| Rottweil P 801² | <<locked>> | 68% | 16,114 psi | 82% | 981 fps | 99.4% |
| SNPE Vectan A1*² | <<locked>> | 72% | 16,433 psi | 84% | 942 fps | 91.9% |
| SNPE Vectan BA 9*² | <<locked>> | 76% | 17,463 psi | 89% | 958 fps | 88.2% |
| SNPE Vectan BA9 1/2* | <<locked>> | 80% | 17,593 psi | 90% | 984 fps | 90.6% |
| Vihtavuori N320² | <<locked>> | 76% | 17,158 psi | 88% | 994 fps | 98% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 12,720 psi | 65% | 873 fps | 99.8% |
| Vihtavuori N330* | <<locked>> | 80% | 16,868 psi | 86% | 1010 fps | 92.1% |
| Winchester 231*² | <<locked>> | 64% | 17,013 psi | 87% | 965 fps | 92.1% |
| Winchester AutoComp * | <<locked>> | 84% | 16,694 psi | 85% | 974 fps | 88.5% |
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*² | <<locked>> | 60% | 12,908 psi | 66% | 837 fps | 93.7% |
| Accurate Solo 1250*² | <<locked>> | 72% | 12,821 psi | 65% | 866 fps | 85.1% |
| ADI AP 70N*² | <<locked>> | 60% | 13,198 psi | 67% | 889 fps | 86.9% |
| ADI APS 350² | <<locked>> | 60% | 15,258 psi | 78% | 833 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 14,170 psi | 72% | 837 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 12,357 psi | 63% | 823 fps | 97.7% |
| ADI AS 50N*² | <<locked>> | 60% | 12,749 psi | 65% | 846 fps | 92.6% |
| Alliant BE-86*² | <<locked>> | 68% | 11,443 psi | 58% | 840 fps | 86.6% |
| Alliant Green Dot*² | <<locked>> | 60% | 11,821 psi | 60% | 820 fps | 91.4% |
| Alliant RED DOT² | <<locked>> | 60% | 11,269 psi | 58% | 807 fps | 95.9% |
| Baschieri & Pellagri 100*² | <<locked>> | 60% | 11,008 psi | 56% | 794 fps | 88.1% |
| Baschieri & Pellagri 102 Pistol*² | <<locked>> | 76% | 9,268 psi | 47% | 774 fps | 87.4% |
| Baschieri & Pellagri 103 Pistol*² | <<locked>> | 60% | 10,530 psi | 54% | 814 fps | 88.4% |
| Hodgdon Clays² | <<locked>> | 60% | 11,618 psi | 59% | 771 fps | 99.7% |
| Hodgdon TrailBoss* | <<locked>> | 92% | 6,295 psi | 32% | 633 fps | 85.1% |
| Hodgdon Universal*² | <<locked>> | 68% | 13,198 psi | 67% | 889 fps | 86.9% |
| Lovex S011*² | <<locked>> | 60% | 14,939 psi | 76% | 892 fps | 90.2% |
| Maxam CSB 1*² | <<locked>> | 76% | 13,010 psi | 66% | 869 fps | 85.6% |
| Maxam CSB 2*² | 3.1 gr | 68% | 9,660 psi | 49% | 823 fps | 86.6% |
| Maxam CSB 3*² | <<locked>> | 60% | 10,573 psi | 54% | 794 fps | 87.2% |
| Maxam CSB 4*² | <<locked>> | 60% | 11,255 psi | 57% | 814 fps | 92% |
| Maxam CSB 5² | <<locked>> | 60% | 12,778 psi | 65% | 853 fps | 99.5% |
| ReloadSwiss RS 12*² | <<locked>> | 60% | 10,109 psi | 52% | 843 fps | 91.2% |
| Rottweil P 801² | <<locked>> | 60% | 12,676 psi | 65% | 896 fps | 97.3% |
| SNPE Vectan A1*² | <<locked>> | 60% | 11,908 psi | 61% | 820 fps | 86% |
| SNPE Vectan BA 9*² | <<locked>> | 72% | 15,751 psi | 80% | 919 fps | 86.3% |
| SNPE Vectan BA9 1/2*² | <<locked>> | 68% | 13,431 psi | 69% | 883 fps | 85.6% |
| Vihtavuori N320*² | <<locked>> | 60% | 10,863 psi | 55% | 827 fps | 91.6% |
| Vihtavuori N32C Tin Star*² | 2 gr | 60% | 5,265 psi | 27% | 594 fps | 87% |
| Vihtavuori N330*² | <<locked>> | 68% | 12,053 psi | 62% | 876 fps | 85.2% |
| Winchester 231*² | <<locked>> | 60% | 15,258 psi | 78% | 922 fps | 90.2% |
| Winchester AutoComp * | <<locked>> | 80% | 15,127 psi | 77% | 938 fps | 86.7% |
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 32 powders for .380 ACP loaded with the .355 | 95gr | Sierra Tournament Master. Maxam CSB 2 delivers the highest muzzle velocity at 1,024 fps; across all powders the maximum-charge window runs from 676 fps to 1,024 fps. Baschieri & Pellagri 102 Pistol gives the best case fill at 100 %, and 11 of the 32 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (135 MPa), the top charges use 36–90 %, leaving at least 10 % headroom. Baschieri & Pellagri 102 Pistol, Hodgdon TrailBoss, 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. Maxam CSB 2, Vihtavuori N32C Tin Star rank at the top here: for .380 ACP with the .355 | 95gr | Sierra Tournament Master 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.