Load Specifications
Load data in caliber .380 ACP with .355 | 124gr | Sierra Sig V-Crown bullet and 35 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>> | 76% | 17,245 psi | 88% | 748 fps | 98% |
| Accurate Solo 1250* | <<locked>> | 88% | 16,563 psi | 85% | 768 fps | 91.1% |
| ADI AP 70N*² | <<locked>> | 72% | 16,636 psi | 85% | 787 fps | 92.4% |
| ADI APS 350² | <<locked>> | 68% | 17,216 psi | 88% | 686 fps | 100% |
| ADI APS 450² | <<locked>> | 68% | 16,752 psi | 86% | 702 fps | 100% |
| ADI AS 30² | <<locked>> | 76% | 17,172 psi | 88% | 748 fps | 100% |
| ADI AS 50N² | <<locked>> | 76% | 17,056 psi | 87% | 761 fps | 97.4% |
| Alliant BE-86* | <<locked>> | 88% | 16,549 psi | 85% | 781 fps | 94.2% |
| Alliant Green Dot | <<locked>> | 80% | 16,810 psi | 86% | 761 fps | 97.4% |
| Alliant RED DOT | <<locked>> | 80% | 16,868 psi | 86% | 761 fps | 99.9% |
| Baschieri & Pellagri 100 | <<locked>> | 80% | 16,621 psi | 85% | 748 fps | 95.7% |
| Baschieri & Pellagri 102 Pistolᴾ | <<locked>> | 100% | 13,924 psi | 71% | 735 fps | 95.9% |
| Baschieri & Pellagri 103 Pistol | <<locked>> | 80% | 16,955 psi | 87% | 791 fps | 97.1% |
| Hodgdon CFE Pistol*² | <<locked>> | 64% | 17,013 psi | 87% | 791 fps | 90.1% |
| Hodgdon Clays | <<locked>> | 80% | 17,303 psi | 88% | 712 fps | 100% |
| Hodgdon TrailBoss*ᴾ | <<locked>> | 100% | 6,469 psi | 33% | 518 fps | 87.4% |
| Hodgdon Universal* | <<locked>> | 80% | 16,636 psi | 85% | 787 fps | 92.4% |
| Lovex S011*² | <<locked>> | 68% | 17,303 psi | 88% | 751 fps | 93.5% |
| Lovex S020* | <<locked>> | 84% | 17,100 psi | 87% | 791 fps | 87% |
| Maxam CSB 1* | <<locked>> | 92% | 16,969 psi | 87% | 774 fps | 91.6% |
| Maxam CSB 2 | <<locked>> | 96% | 16,447 psi | 84% | 827 fps | 97.3% |
| Maxam CSB 3 | <<locked>> | 84% | 16,853 psi | 86% | 771 fps | 96% |
| Maxam CSB 4² | <<locked>> | 76% | 16,346 psi | 83% | 755 fps | 98% |
| Maxam CSB 5² | <<locked>> | 72% | 16,911 psi | 86% | 751 fps | 100% |
| ReloadSwiss RS 12 | <<locked>> | 84% | 17,187 psi | 88% | 837 fps | 99.3% |
| Rottweil P 801² | <<locked>> | 72% | 15,722 psi | 80% | 784 fps | 99.7% |
| SNPE Vectan A1*² | <<locked>> | 76% | 16,085 psi | 82% | 741 fps | 92.5% |
| SNPE Vectan BA 9*² | <<locked>> | 76% | 15,418 psi | 79% | 725 fps | 86.9% |
| SNPE Vectan BA10² | <<locked>> | 64% | 16,737 psi | 85% | 705 fps | 100% |
| SNPE Vectan BA9 1/2* | <<locked>> | 84% | 17,390 psi | 89% | 784 fps | 91.6% |
| Vihtavuori N320 | <<locked>> | 80% | 16,607 psi | 85% | 784 fps | 98.4% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 11,066 psi | 57% | 666 fps | 99.6% |
| Vihtavuori N330* | <<locked>> | 84% | 16,114 psi | 82% | 794 fps | 92.5% |
| Winchester 231*² | <<locked>> | 68% | 17,448 psi | 89% | 778 fps | 93.4% |
| Winchester AutoComp * | <<locked>> | 92% | 17,260 psi | 88% | 791 fps | 90.3% |
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% | 11,980 psi | 61% | 643 fps | 93.5% |
| Accurate Solo 1250*² | <<locked>> | 76% | 12,894 psi | 66% | 696 fps | 86.6% |
| ADI AP 70N*² | <<locked>> | 60% | 11,182 psi | 57% | 666 fps | 85.3% |
| ADI APS 350² | <<locked>> | 60% | 13,822 psi | 71% | 633 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 13,764 psi | 70% | 653 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 11,792 psi | 60% | 643 fps | 97.9% |
| ADI AS 50N*² | <<locked>> | 60% | 12,053 psi | 62% | 659 fps | 92.8% |
| Alliant BE-86*² | <<locked>> | 68% | 10,457 psi | 53% | 650 fps | 86.5% |
| Alliant Green Dot*² | <<locked>> | 60% | 10,878 psi | 56% | 633 fps | 91.2% |
| Alliant RED DOT² | <<locked>> | 60% | 10,385 psi | 53% | 623 fps | 95.9% |
| Baschieri & Pellagri 100*² | <<locked>> | 60% | 9,718 psi | 50% | 600 fps | 87.1% |
| Baschieri & Pellagri 102 Pistol*² | <<locked>> | 76% | 8,151 psi | 42% | 587 fps | 86.4% |
| Baschieri & Pellagri 103 Pistol*² | <<locked>> | 60% | 9,210 psi | 47% | 620 fps | 87.4% |
| Hodgdon CFE Pistol*² | <<locked>> | 60% | 14,750 psi | 75% | 745 fps | 87.5% |
| Hodgdon Clays² | <<locked>> | 60% | 10,515 psi | 54% | 587 fps | 99.6% |
| Hodgdon TrailBoss* | <<locked>> | 92% | 5,918 psi | 30% | 495 fps | 85.5% |
| Hodgdon Universal*² | <<locked>> | 64% | 11,182 psi | 57% | 666 fps | 85.3% |
| Lovex S011*² | <<locked>> | 60% | 13,285 psi | 68% | 676 fps | 89.2% |
| Lovex S020* | <<locked>> | 80% | 15,751 psi | 80% | 768 fps | 85.5% |
| Maxam CSB 1*² | <<locked>> | 76% | 12,357 psi | 63% | 679 fps | 86% |
| Maxam CSB 2*² | 2.1 gr | 68% | 8,528 psi | 44% | 630 fps | 85.8% |
| Maxam CSB 3*² | <<locked>> | 60% | 9,036 psi | 46% | 594 fps | 85.6% |
| Maxam CSB 4*² | <<locked>> | 60% | 10,269 psi | 52% | 623 fps | 91.7% |
| Maxam CSB 5² | <<locked>> | 60% | 11,226 psi | 57% | 646 fps | 99.2% |
| ReloadSwiss RS 12*² | <<locked>> | 60% | 8,572 psi | 44% | 640 fps | 90.2% |
| Rottweil P 801² | <<locked>> | 60% | 11,081 psi | 57% | 686 fps | 97.1% |
| SNPE Vectan A1*² | <<locked>> | 60% | 10,907 psi | 56% | 630 fps | 85.6% |
| SNPE Vectan BA 9*² | <<locked>> | 72% | 14,301 psi | 73% | 702 fps | 85.4% |
| SNPE Vectan BA10² | <<locked>> | 60% | 15,214 psi | 78% | 679 fps | 100% |
| SNPE Vectan BA9 1/2*² | <<locked>> | 72% | 12,792 psi | 65% | 692 fps | 86.1% |
| Vihtavuori N320*² | <<locked>> | 60% | 9,471 psi | 48% | 627 fps | 90.7% |
| Vihtavuori N32C Tin Star*² | 1.4 gr | 60% | 5,047 psi | 26% | 466 fps | 87.7% |
| Vihtavuori N330*² | <<locked>> | 72% | 11,719 psi | 60% | 692 fps | 86.3% |
| Winchester 231*² | <<locked>> | 60% | 13,793 psi | 70% | 705 fps | 89.6% |
| Winchester AutoComp * | <<locked>> | 80% | 13,082 psi | 67% | 709 fps | 85.4% |
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 35 powders for .380 ACP loaded with the .355 | 124gr | Sierra Sig V-Crown. ReloadSwiss RS 12 delivers the highest muzzle velocity at 837 fps; across all powders the maximum-charge window runs from 518 fps to 837 fps. Baschieri & Pellagri 102 Pistol gives the best case fill at 100 %, and 20 of the 35 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (135 MPa), the top charges use 33–89 %, leaving at least 11 % 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 | 124gr | Sierra Sig V-Crown 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.