Load Specifications
Load data in caliber .380 ACP with .357 | 125gr | Speer TMJ bullet and 36 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% | 17,637 psi | 90% | 761 fps | 98.6% |
| Accurate Solo 1250* | <<locked>> | 84% | 16,723 psi | 85% | 781 fps | 92% |
| ADI AP 70N*² | <<locked>> | 72% | 16,926 psi | 86% | 801 fps | 93.4% |
| ADI APS 350² | <<locked>> | 64% | 16,230 psi | 83% | 676 fps | 100% |
| ADI APS 450² | <<locked>> | 68% | 17,289 psi | 88% | 719 fps | 100% |
| ADI AS 30² | <<locked>> | 76% | 17,680 psi | 90% | 761 fps | 100% |
| ADI AS 50N² | <<locked>> | 72% | 16,085 psi | 82% | 751 fps | 97.3% |
| Alliant BE-86 | <<locked>> | 84% | 16,650 psi | 85% | 787 fps | 95% |
| Alliant Green Dot² | <<locked>> | 76% | 17,231 psi | 88% | 774 fps | 98.1% |
| Alliant RED DOT | <<locked>> | 80% | 17,419 psi | 89% | 774 fps | 100% |
| Baschieri & Pellagri 100 | <<locked>> | 80% | 16,868 psi | 86% | 758 fps | 96.5% |
| Baschieri & Pellagri 102 Pistolᴾ | <<locked>> | 100% | 14,982 psi | 77% | 764 fps | 97.3% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 76% | 15,693 psi | 80% | 774 fps | 96.7% |
| Hodgdon CFE Pistol*² | <<locked>> | 64% | 17,114 psi | 87% | 797 fps | 90.9% |
| Hodgdon Clays² | <<locked>> | 76% | 16,273 psi | 83% | 702 fps | 100% |
| Hodgdon TrailBoss*ᴾ | <<locked>> | 100% | 6,788 psi | 35% | 535 fps | 89.2% |
| Hodgdon Universal* | <<locked>> | 80% | 16,926 psi | 86% | 801 fps | 93.4% |
| Lovex S011*² | <<locked>> | 64% | 16,143 psi | 82% | 741 fps | 93.2% |
| Lovex S020* | <<locked>> | 80% | 17,216 psi | 88% | 801 fps | 88% |
| Maxam CSB 1* | <<locked>> | 88% | 17,100 psi | 87% | 784 fps | 92.5% |
| Maxam CSB 2 | <<locked>> | 92% | 16,752 psi | 86% | 837 fps | 97.9% |
| Maxam CSB 3 | <<locked>> | 80% | 17,143 psi | 88% | 781 fps | 96.8% |
| Maxam CSB 4² | <<locked>> | 76% | 16,752 psi | 86% | 768 fps | 98.6% |
| Maxam CSB 5² | <<locked>> | 72% | 17,448 psi | 89% | 764 fps | 100% |
| ReloadSwiss RS 12 | <<locked>> | 80% | 16,317 psi | 83% | 827 fps | 99.3% |
| Rottweil P 801² | <<locked>> | 72% | 17,463 psi | 89% | 817 fps | 100% |
| SNPE Vectan A1*² | <<locked>> | 76% | 17,347 psi | 89% | 774 fps | 94.3% |
| SNPE Vectan BA 9*² | <<locked>> | 76% | 16,650 psi | 85% | 755 fps | 89.1% |
| SNPE Vectan BA10² | <<locked>> | 64% | 17,274 psi | 88% | 719 fps | 100% |
| SNPE Vectan BA9 1/2* | <<locked>> | 80% | 17,535 psi | 90% | 794 fps | 92.4% |
| Somchem MS200* | <<locked>> | 84% | 17,608 psi | 90% | 791 fps | 86.7% |
| Vihtavuori N320 | <<locked>> | 80% | 16,984 psi | 87% | 794 fps | 99% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 11,473 psi | 59% | 679 fps | 99.9% |
| Vihtavuori N330* | <<locked>> | 84% | 17,492 psi | 89% | 827 fps | 94.6% |
| Winchester 231*² | <<locked>> | 68% | 17,622 psi | 90% | 787 fps | 94.3% |
| Winchester AutoComp * | <<locked>> | 88% | 17,274 psi | 88% | 797 fps | 91.1% |
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% | 12,444 psi | 64% | 659 fps | 94.7% |
| Accurate Solo 1250*² | <<locked>> | 72% | 12,154 psi | 62% | 686 fps | 86.3% |
| ADI AP 70N*² | <<locked>> | 60% | 12,517 psi | 64% | 705 fps | 88.3% |
| ADI APS 350² | <<locked>> | 60% | 14,591 psi | 75% | 653 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 14,359 psi | 73% | 669 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 11,240 psi | 57% | 636 fps | 97.8% |
| ADI AS 50N*² | <<locked>> | 60% | 12,531 psi | 64% | 676 fps | 94.1% |
| Alliant BE-86*² | <<locked>> | 64% | 9,935 psi | 51% | 643 fps | 86.4% |
| Alliant Green Dot*² | <<locked>> | 60% | 11,327 psi | 58% | 650 fps | 92.6% |
| Alliant RED DOT² | <<locked>> | 60% | 10,979 psi | 56% | 643 fps | 97.1% |
| Baschieri & Pellagri 100*² | <<locked>> | 60% | 10,138 psi | 52% | 617 fps | 88.7% |
| Baschieri & Pellagri 102 Pistol*² | <<locked>> | 72% | 7,716 psi | 39% | 577 fps | 86.2% |
| Baschieri & Pellagri 103 Pistol*² | <<locked>> | 60% | 9,964 psi | 51% | 646 fps | 89.8% |
| Hodgdon CFE Pistol*² | <<locked>> | 60% | 14,924 psi | 76% | 755 fps | 88.5% |
| Hodgdon Clays² | <<locked>> | 60% | 11,081 psi | 57% | 607 fps | 99.9% |
| Hodgdon TrailBoss* | <<locked>> | 88% | 5,744 psi | 29% | 492 fps | 85.7% |
| Hodgdon Universal*² | <<locked>> | 60% | 10,660 psi | 54% | 656 fps | 85.1% |
| Lovex S011*² | <<locked>> | 60% | 14,866 psi | 76% | 715 fps | 91.9% |
| Lovex S020*² | <<locked>> | 76% | 14,721 psi | 75% | 755 fps | 85.2% |
| Maxam CSB 1*² | <<locked>> | 72% | 11,647 psi | 59% | 669 fps | 85.7% |
| Maxam CSB 2*² | 2.1 gr | 64% | 8,180 psi | 42% | 623 fps | 85.8% |
| Maxam CSB 3*² | <<locked>> | 60% | 9,471 psi | 48% | 610 fps | 87.4% |
| Maxam CSB 4*² | <<locked>> | 60% | 10,747 psi | 55% | 643 fps | 93.2% |
| Maxam CSB 5² | <<locked>> | 60% | 11,879 psi | 61% | 666 fps | 99.7% |
| ReloadSwiss RS 12*² | <<locked>> | 60% | 8,992 psi | 46% | 656 fps | 91.9% |
| Rottweil P 801² | <<locked>> | 60% | 11,618 psi | 59% | 702 fps | 98% |
| SNPE Vectan A1*² | <<locked>> | 60% | 11,153 psi | 57% | 643 fps | 86.9% |
| SNPE Vectan BA 9*² | <<locked>> | 68% | 13,416 psi | 69% | 689 fps | 85.2% |
| SNPE Vectan BA10² | <<locked>> | 60% | 15,766 psi | 81% | 692 fps | 100% |
| SNPE Vectan BA9 1/2*² | <<locked>> | 68% | 12,082 psi | 62% | 679 fps | 85.8% |
| Somchem MS200* | <<locked>> | 80% | 16,476 psi | 84% | 771 fps | 85.4% |
| Vihtavuori N320*² | <<locked>> | 60% | 9,892 psi | 51% | 643 fps | 92.3% |
| Vihtavuori N32C Tin Star*² | 1.5 gr | 60% | 5,337 psi | 27% | 482 fps | 90% |
| Vihtavuori N330*² | <<locked>> | 68% | 11,037 psi | 56% | 682 fps | 86% |
| Winchester 231*² | <<locked>> | 60% | 14,054 psi | 72% | 719 fps | 90.8% |
| Winchester AutoComp *² | <<locked>> | 76% | 12,343 psi | 63% | 699 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 36 powders for .380 ACP loaded with the .357 | 125gr | Speer TMJ. Maxam CSB 2 delivers the highest muzzle velocity at 837 fps; across all powders the maximum-charge window runs from 535 fps to 837 fps. Baschieri & Pellagri 102 Pistol gives the best case fill at 100 %, and 18 of the 36 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (135 MPa), the top charges use 35–90 %, 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 .357 | 125gr | Speer TMJ they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate Solo 1250, ADI AP 70N, Hodgdon CFE Pistol 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.