Load Specifications
Load data in caliber .380 ACP with .355 | 115gr | Prvi Partizan FMJ bullet and 34 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 12.
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.
A valid access license is required to use the Personalized Load Calculator.
You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 3.5"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate Solo 1000 | <<locked>> | 80% | 17,143 psi | 88% | 771 fps | 96.8% |
| Accurate Solo 1250* | <<locked>> | 88% | 15,026 psi | 77% | 764 fps | 87.4% |
| ADI AP 70N* | <<locked>> | 80% | 17,506 psi | 89% | 833 fps | 91.6% |
| ADI APS 350² | <<locked>> | 68% | 17,129 psi | 87% | 712 fps | 100% |
| ADI APS 450² | <<locked>> | 72% | 16,737 psi | 85% | 732 fps | 100% |
| ADI AS 30 | <<locked>> | 80% | 16,911 psi | 86% | 771 fps | 99.7% |
| ADI AS 50N | <<locked>> | 80% | 16,752 psi | 86% | 784 fps | 96% |
| Alliant BE-86* | <<locked>> | 92% | 17,593 psi | 90% | 827 fps | 93.5% |
| Alliant Green Dot | <<locked>> | 80% | 16,505 psi | 84% | 781 fps | 96% |
| Alliant RED DOT | <<locked>> | 84% | 16,520 psi | 84% | 784 fps | 99.4% |
| Baschieri & Pellagri 100* | <<locked>> | 84% | 16,389 psi | 84% | 768 fps | 94% |
| Baschieri & Pellagri 102 Pistol*ᴾ | <<locked>> | 100% | 12,647 psi | 65% | 732 fps | 92.8% |
| Baschieri & Pellagri 103 Pistol | <<locked>> | 84% | 16,636 psi | 85% | 810 fps | 95.4% |
| Hodgdon CFE Pistol*² | <<locked>> | 68% | 16,723 psi | 85% | 810 fps | 87.8% |
| Hodgdon Clays² | <<locked>> | 68% | 17,129 psi | 87% | 722 fps | 100% |
| Hodgdon Universal* | <<locked>> | 88% | 17,506 psi | 89% | 833 fps | 91.6% |
| Lovex S011*² | <<locked>> | 68% | 15,780 psi | 81% | 748 fps | 90.2% |
| Maxam CSB 1* | <<locked>> | 96% | 16,665 psi | 85% | 794 fps | 89.4% |
| Maxam CSB 2ᴾ | <<locked>> | 100% | 15,853 psi | 81% | 846 fps | 95.6% |
| Maxam CSB 3* | <<locked>> | 88% | 16,549 psi | 85% | 791 fps | 94.4% |
| Maxam CSB 4 | <<locked>> | 84% | 17,550 psi | 90% | 804 fps | 97.6% |
| Maxam CSB 5² | <<locked>> | 76% | 16,520 psi | 84% | 778 fps | 100% |
| Ramshot Zip*² | <<locked>> | 64% | 17,172 psi | 88% | 797 fps | 91.5% |
| ReloadSwiss RS 12 | <<locked>> | 88% | 16,447 psi | 84% | 856 fps | 98.2% |
| Rottweil P 801² | <<locked>> | 76% | 16,389 psi | 84% | 827 fps | 99.5% |
| SNPE Vectan A1* | <<locked>> | 80% | 17,172 psi | 88% | 784 fps | 91.7% |
| SNPE Vectan BA10² | <<locked>> | 68% | 16,708 psi | 85% | 728 fps | 100% |
| SNPE Vectan BA9 1/2* | <<locked>> | 88% | 17,129 psi | 87% | 804 fps | 89.4% |
| Vihtavuori N310² | <<locked>> | 64% | 16,824 psi | 86% | 771 fps | 100% |
| Vihtavuori N320 | <<locked>> | 88% | 17,666 psi | 90% | 830 fps | 98% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 9,732 psi | 50% | 663 fps | 97.8% |
| Vihtavuori N330* | <<locked>> | 88% | 17,216 psi | 88% | 837 fps | 91.6% |
| Winchester 231*² | <<locked>> | 72% | 17,172 psi | 88% | 797 fps | 91.5% |
| Winchester AutoComp * | <<locked>> | 92% | 15,780 psi | 81% | 787 fps | 86.7% |
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% | 10,733 psi | 55% | 633 fps | 89.9% |
| Accurate Solo 1250* | <<locked>> | 84% | 13,837 psi | 71% | 738 fps | 85.8% |
| ADI AP 70N*² | <<locked>> | 68% | 12,778 psi | 65% | 732 fps | 85.8% |
| ADI APS 350² | <<locked>> | 60% | 13,750 psi | 70% | 659 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 12,314 psi | 63% | 650 fps | 99.9% |
| ADI AS 30² | <<locked>> | 60% | 10,428 psi | 53% | 633 fps | 95.2% |
| ADI AS 50N*² | <<locked>> | 60% | 10,762 psi | 55% | 650 fps | 89.1% |
| Alliant BE-86*² | <<locked>> | 76% | 11,037 psi | 56% | 689 fps | 85.5% |
| Alliant Green Dot*² | <<locked>> | 60% | 9,674 psi | 49% | 620 fps | 87.2% |
| Alliant RED DOT*² | <<locked>> | 60% | 9,079 psi | 46% | 610 fps | 92.3% |
| Baschieri & Pellagri 100*² | <<locked>> | 68% | 11,487 psi | 59% | 666 fps | 88.2% |
| Baschieri & Pellagri 102 Pistol* | <<locked>> | 80% | 8,586 psi | 44% | 620 fps | 85.1% |
| Baschieri & Pellagri 103 Pistol*² | <<locked>> | 64% | 9,631 psi | 49% | 653 fps | 86.1% |
| Hodgdon CFE Pistol*² | <<locked>> | 64% | 15,577 psi | 80% | 787 fps | 86.4% |
| Hodgdon Clays² | <<locked>> | 60% | 13,735 psi | 70% | 666 fps | 100% |
| Hodgdon Universal*² | <<locked>> | 76% | 13,851 psi | 71% | 758 fps | 87.4% |
| Lovex S011*² | <<locked>> | 60% | 13,227 psi | 68% | 692 fps | 87% |
| Maxam CSB 1* | <<locked>> | 88% | 14,257 psi | 73% | 745 fps | 86.6% |
| Maxam CSB 2* | <<locked>> | 80% | 10,588 psi | 54% | 719 fps | 88.4% |
| Maxam CSB 3*² | <<locked>> | 68% | 10,689 psi | 55% | 659 fps | 86.9% |
| Maxam CSB 4*² | <<locked>> | 60% | 9,050 psi | 46% | 610 fps | 87.5% |
| Maxam CSB 5² | <<locked>> | 60% | 10,965 psi | 56% | 666 fps | 98.2% |
| Ramshot Zip*² | <<locked>> | 60% | 14,663 psi | 75% | 748 fps | 88.8% |
| ReloadSwiss RS 12*² | 2.1 gr | 64% | 8,992 psi | 46% | 676 fps | 89.1% |
| Rottweil P 801*² | <<locked>> | 60% | 9,631 psi | 49% | 676 fps | 93.8% |
| SNPE Vectan A1*² | <<locked>> | 68% | 12,618 psi | 64% | 692 fps | 86.3% |
| SNPE Vectan BA10² | <<locked>> | 60% | 13,692 psi | 70% | 676 fps | 100% |
| SNPE Vectan BA9 1/2*² | <<locked>> | 76% | 13,576 psi | 69% | 732 fps | 85.1% |
| Vihtavuori N310² | <<locked>> | 60% | 15,098 psi | 77% | 745 fps | 100% |
| Vihtavuori N320*² | <<locked>> | 60% | 8,354 psi | 43% | 610 fps | 85.8% |
| Vihtavuori N32C Tin Star*² | <<locked>> | 68% | 5,337 psi | 27% | 495 fps | 86.5% |
| Vihtavuori N330*² | <<locked>> | 76% | 12,444 psi | 64% | 732 fps | 85.1% |
| Winchester 231*² | <<locked>> | 60% | 12,459 psi | 64% | 699 fps | 85.7% |
| Winchester AutoComp * | <<locked>> | 88% | 14,736 psi | 75% | 768 fps | 85.5% |
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 34 powders for .380 ACP loaded with the .355 | 115gr | Prvi Partizan FMJ. ReloadSwiss RS 12 delivers the highest muzzle velocity at 856 fps; across all powders the maximum-charge window runs from 663 fps to 856 fps. Baschieri & Pellagri 102 Pistol gives the best case fill at 100 %, and 23 of the 34 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (135 MPa), the top charges use 50–90 %, 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. ReloadSwiss RS 12 rank at the top here: for .380 ACP with the .355 | 115gr | Prvi Partizan FMJ 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.