Load Specifications
Load data in caliber .380 ACP with .355 | 100gr | Speer JHP 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>> | 72% | 16,070 psi | 82% | 873 fps | 96.6% |
| Accurate Solo 1250* | <<locked>> | 84% | 16,143 psi | 82% | 909 fps | 89.3% |
| ADI AP 70N*² | <<locked>> | 72% | 17,347 psi | 89% | 951 fps | 91.8% |
| ADI APS 350² | <<locked>> | 64% | 16,331 psi | 83% | 814 fps | 100% |
| ADI APS 450² | <<locked>> | 68% | 16,505 psi | 84% | 843 fps | 100% |
| ADI AS 30² | <<locked>> | 76% | 17,564 psi | 90% | 902 fps | 99.9% |
| ADI AS 50N² | <<locked>> | 72% | 16,810 psi | 86% | 906 fps | 96.5% |
| Alliant BE-86* | <<locked>> | 84% | 16,172 psi | 83% | 922 fps | 92.7% |
| Alliant Green Dot² | <<locked>> | 76% | 16,578 psi | 85% | 906 fps | 96.4% |
| Alliant RED DOT | <<locked>> | 80% | 17,260 psi | 88% | 919 fps | 99.7% |
| Baschieri & Pellagri 100*² | <<locked>> | 76% | 15,766 psi | 81% | 876 fps | 94.1% |
| Baschieri & Pellagri 102 Pistolᴾ | <<locked>> | 100% | 15,418 psi | 79% | 909 fps | 96.1% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 76% | 16,201 psi | 83% | 922 fps | 95.5% |
| Hodgdon CFE Pistol*² | <<locked>> | 64% | 17,550 psi | 90% | 948 fps | 89.2% |
| Hodgdon Clays² | <<locked>> | 76% | 16,708 psi | 85% | 846 fps | 100% |
| Hodgdon Universal* | <<locked>> | 80% | 17,347 psi | 89% | 951 fps | 91.8% |
| Lovex S011*² | <<locked>> | 64% | 16,549 psi | 85% | 886 fps | 91.8% |
| Maxam CSB 1* | <<locked>> | 88% | 17,303 psi | 88% | 932 fps | 90.8% |
| Maxam CSB 2 | <<locked>> | 92% | 16,505 psi | 84% | 981 fps | 96.2% |
| Maxam CSB 3 | <<locked>> | 80% | 17,027 psi | 87% | 922 fps | 95.2% |
| Maxam CSB 4² | <<locked>> | 76% | 16,114 psi | 82% | 899 fps | 97.1% |
| Maxam CSB 5² | <<locked>> | 72% | 17,289 psi | 88% | 909 fps | 100% |
| ReloadSwiss RS 12 | <<locked>> | 80% | 16,505 psi | 84% | 978 fps | 98.3% |
| Rottweil P 801² | <<locked>> | 72% | 16,839 psi | 86% | 955 fps | 99.6% |
| SNPE Vectan A1*² | <<locked>> | 76% | 17,521 psi | 89% | 919 fps | 92.8% |
| SNPE Vectan BA 9*² | <<locked>> | 76% | 16,824 psi | 86% | 899 fps | 87.3% |
| SNPE Vectan BA10² | <<locked>> | 64% | 17,709 psi | 90% | 866 fps | 100% |
| SNPE Vectan BA9 1/2* | <<locked>> | 80% | 16,781 psi | 86% | 922 fps | 89.8% |
| Vihtavuori N320² | <<locked>> | 76% | 15,751 psi | 80% | 915 fps | 97.1% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 11,603 psi | 59% | 807 fps | 99.3% |
| Vihtavuori N330* | <<locked>> | 84% | 17,172 psi | 88% | 968 fps | 92.3% |
| Winchester 231*² | <<locked>> | 64% | 16,041 psi | 82% | 899 fps | 91% |
| Winchester AutoComp * | <<locked>> | 88% | 17,202 psi | 88% | 942 fps | 89% |
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% | 12,067 psi | 62% | 771 fps | 92.5% |
| Accurate Solo 1250*² | <<locked>> | 76% | 13,343 psi | 68% | 840 fps | 85.8% |
| ADI AP 70N*² | <<locked>> | 64% | 13,619 psi | 70% | 863 fps | 87.5% |
| ADI APS 350² | <<locked>> | 60% | 14,997 psi | 77% | 787 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 14,170 psi | 72% | 794 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 12,241 psi | 63% | 781 fps | 97.5% |
| ADI AS 50N*² | <<locked>> | 60% | 11,966 psi | 61% | 784 fps | 91.5% |
| Alliant BE-86*² | <<locked>> | 68% | 10,646 psi | 54% | 778 fps | 85.2% |
| Alliant Green Dot*² | <<locked>> | 60% | 11,023 psi | 56% | 758 fps | 90.1% |
| Alliant RED DOT² | <<locked>> | 60% | 11,066 psi | 57% | 764 fps | 95.6% |
| Baschieri & Pellagri 100*² | <<locked>> | 60% | 10,385 psi | 53% | 738 fps | 86.9% |
| Baschieri & Pellagri 102 Pistol*² | <<locked>> | 76% | 9,079 psi | 46% | 732 fps | 87% |
| Baschieri & Pellagri 103 Pistol*² | <<locked>> | 60% | 10,066 psi | 51% | 761 fps | 87.5% |
| Hodgdon CFE Pistol*² | <<locked>> | 60% | 15,780 psi | 81% | 909 fps | 87.3% |
| Hodgdon Clays² | <<locked>> | 60% | 11,385 psi | 58% | 728 fps | 99.6% |
| Hodgdon Universal*² | <<locked>> | 68% | 12,792 psi | 65% | 840 fps | 86.3% |
| Lovex S011*² | <<locked>> | 60% | 14,518 psi | 74% | 840 fps | 89.5% |
| Maxam CSB 1*² | <<locked>> | 76% | 12,792 psi | 65% | 820 fps | 85.2% |
| Maxam CSB 2*² | <<locked>> | 72% | 9,863 psi | 50% | 797 fps | 87.1% |
| Maxam CSB 3*² | <<locked>> | 60% | 9,892 psi | 51% | 735 fps | 85.8% |
| Maxam CSB 4*² | <<locked>> | 60% | 10,457 psi | 53% | 751 fps | 90.6% |
| Maxam CSB 5² | <<locked>> | 60% | 12,720 psi | 65% | 810 fps | 99.5% |
| ReloadSwiss RS 12*² | <<locked>> | 60% | 9,558 psi | 49% | 791 fps | 90.4% |
| Rottweil P 801² | <<locked>> | 60% | 12,096 psi | 62% | 840 fps | 96.9% |
| SNPE Vectan A1*² | <<locked>> | 60% | 11,603 psi | 59% | 771 fps | 85.4% |
| SNPE Vectan BA 9*² | <<locked>> | 72% | 14,982 psi | 77% | 856 fps | 85.1% |
| SNPE Vectan BA10² | <<locked>> | 60% | 15,316 psi | 78% | 817 fps | 100% |
| SNPE Vectan BA9 1/2*² | <<locked>> | 72% | 13,996 psi | 71% | 853 fps | 86.3% |
| Vihtavuori N320*² | <<locked>> | 60% | 10,182 psi | 52% | 768 fps | 90.5% |
| Vihtavuori N32C Tin Star*² | 1.8 gr | 60% | 5,105 psi | 26% | 554 fps | 86.1% |
| Vihtavuori N330*² | <<locked>> | 72% | 12,618 psi | 64% | 853 fps | 86.2% |
| Winchester 231*² | <<locked>> | 60% | 14,170 psi | 72% | 853 fps | 88.8% |
| Winchester AutoComp * | <<locked>> | 80% | 13,953 psi | 71% | 863 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 | 100gr | Speer JHP. Maxam CSB 2 delivers the highest muzzle velocity at 981 fps; across all powders the maximum-charge window runs from 807 fps to 981 fps. Baschieri & Pellagri 102 Pistol gives the best case fill at 100 %, and 13 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 59–90 %, 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. Vihtavuori N32C Tin Star rank at the top here: for .380 ACP with the .355 | 100gr | Speer JHP 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.