Load Specifications
Load data in caliber .380 ACP with .356 | 100gr | Berry's Flat Base Round Nose bullet and 32 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 and Maxam CSB 2.
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>> | 68% | 15,635 psi | 80% | 876 fps | 96.8% |
| Accurate Solo 1250* | <<locked>> | 84% | 17,405 psi | 89% | 951 fps | 91.5% |
| ADI AP 70N*² | <<locked>> | 68% | 16,694 psi | 85% | 951 fps | 91.9% |
| ADI APS 350² | <<locked>> | 64% | 17,405 psi | 89% | 846 fps | 100% |
| ADI APS 450² | <<locked>> | 64% | 16,143 psi | 82% | 850 fps | 100% |
| ADI AS 30² | <<locked>> | 72% | 17,158 psi | 88% | 909 fps | 99.9% |
| ADI AS 50N² | <<locked>> | 72% | 17,332 psi | 89% | 932 fps | 97.4% |
| Alliant BE-86* | <<locked>> | 80% | 16,230 psi | 83% | 938 fps | 93.5% |
| Alliant Green Dot² | <<locked>> | 72% | 16,114 psi | 82% | 909 fps | 96.6% |
| Alliant RED DOT² | <<locked>> | 76% | 16,911 psi | 86% | 922 fps | 99.8% |
| Baschieri & Pellagri 100² | <<locked>> | 76% | 17,172 psi | 88% | 922 fps | 95.9% |
| Baschieri & Pellagri 102 Pistolᴾ | <<locked>> | 100% | 16,331 psi | 83% | 945 fps | 97.4% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 76% | 17,564 psi | 90% | 965 fps | 97.1% |
| Hodgdon Clays² | <<locked>> | 76% | 17,376 psi | 89% | 873 fps | 100% |
| Hodgdon TrailBoss*ᴾ | <<locked>> | 100% | 7,136 psi | 36% | 653 fps | 88.6% |
| Hodgdon Universal*² | <<locked>> | 76% | 16,694 psi | 85% | 951 fps | 91.9% |
| Lovex S011*² | <<locked>> | 64% | 16,940 psi | 87% | 912 fps | 93% |
| Maxam CSB 1* | <<locked>> | 84% | 16,491 psi | 84% | 928 fps | 90.8% |
| Maxam CSB 2 | <<locked>> | 88% | 16,868 psi | 86% | 1001 fps | 97% |
| Maxam CSB 3 | <<locked>> | 80% | 17,448 psi | 89% | 948 fps | 96.1% |
| Maxam CSB 4² | <<locked>> | 76% | 17,709 psi | 90% | 945 fps | 98.5% |
| Maxam CSB 5² | <<locked>> | 68% | 16,897 psi | 86% | 912 fps | 100% |
| ReloadSwiss RS 12² | <<locked>> | 76% | 16,998 psi | 87% | 997 fps | 98.8% |
| Rottweil P 801² | <<locked>> | 68% | 16,360 psi | 84% | 955 fps | 99.7% |
| SNPE Vectan A1*² | <<locked>> | 72% | 16,679 psi | 85% | 915 fps | 92.8% |
| SNPE Vectan BA 9*² | <<locked>> | 72% | 15,954 psi | 81% | 896 fps | 87.3% |
| SNPE Vectan BA9 1/2*² | <<locked>> | 76% | 16,056 psi | 82% | 919 fps | 89.8% |
| Vihtavuori N320² | <<locked>> | 76% | 17,448 psi | 89% | 965 fps | 98.5% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 12,952 psi | 66% | 846 fps | 99.9% |
| Vihtavuori N330* | <<locked>> | 80% | 17,231 psi | 88% | 988 fps | 93.2% |
| Winchester 231*² | <<locked>> | 64% | 17,245 psi | 88% | 942 fps | 93% |
| Winchester AutoComp * | <<locked>> | 84% | 17,114 psi | 87% | 955 fps | 89.7% |
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% | 12,778 psi | 65% | 804 fps | 94.1% |
| Accurate Solo 1250*² | <<locked>> | 72% | 12,923 psi | 66% | 843 fps | 86.1% |
| ADI AP 70N*² | <<locked>> | 60% | 13,285 psi | 68% | 866 fps | 87.9% |
| ADI APS 350² | <<locked>> | 60% | 16,114 psi | 82% | 823 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 15,055 psi | 77% | 827 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 12,227 psi | 62% | 791 fps | 97.9% |
| ADI AS 50N*² | <<locked>> | 60% | 12,662 psi | 65% | 817 fps | 93.1% |
| Alliant BE-86*² | <<locked>> | 64% | 10,385 psi | 53% | 781 fps | 85.5% |
| Alliant Green Dot*² | <<locked>> | 60% | 11,748 psi | 60% | 794 fps | 92% |
| Alliant RED DOT² | <<locked>> | 60% | 11,980 psi | 61% | 801 fps | 97.2% |
| Baschieri & Pellagri 100*² | <<locked>> | 60% | 10,979 psi | 56% | 768 fps | 88.9% |
| Baschieri & Pellagri 102 Pistol*² | <<locked>> | 72% | 8,818 psi | 45% | 735 fps | 87.3% |
| Baschieri & Pellagri 103 Pistol*² | <<locked>> | 60% | 10,747 psi | 55% | 797 fps | 89.7% |
| Hodgdon Clays² | <<locked>> | 60% | 12,256 psi | 63% | 764 fps | 100% |
| Hodgdon TrailBoss* | <<locked>> | 92% | 6,237 psi | 32% | 614 fps | 85.8% |
| Hodgdon Universal*² | <<locked>> | 64% | 12,575 psi | 64% | 843 fps | 86.7% |
| Lovex S011*² | <<locked>> | 60% | 14,953 psi | 76% | 866 fps | 91% |
| Maxam CSB 1*² | <<locked>> | 72% | 12,386 psi | 63% | 823 fps | 85.5% |
| Maxam CSB 2*² | 3 gr | 68% | 9,761 psi | 50% | 804 fps | 87.7% |
| Maxam CSB 3*² | <<locked>> | 60% | 10,515 psi | 54% | 768 fps | 87.9% |
| Maxam CSB 4*² | <<locked>> | 60% | 11,153 psi | 57% | 784 fps | 92.5% |
| Maxam CSB 5² | <<locked>> | 60% | 13,663 psi | 70% | 843 fps | 99.9% |
| ReloadSwiss RS 12*² | <<locked>> | 60% | 10,283 psi | 53% | 820 fps | 92.3% |
| Rottweil P 801² | <<locked>> | 60% | 12,778 psi | 65% | 869 fps | 97.9% |
| SNPE Vectan A1*² | <<locked>> | 60% | 11,995 psi | 61% | 797 fps | 87% |
| SNPE Vectan BA 9*² | <<locked>> | 68% | 14,373 psi | 73% | 856 fps | 85.3% |
| SNPE Vectan BA9 1/2*² | <<locked>> | 68% | 13,547 psi | 69% | 856 fps | 86.6% |
| Vihtavuori N320*² | <<locked>> | 60% | 10,834 psi | 55% | 801 fps | 92.3% |
| Vihtavuori N32C Tin Star*² | 2 gr | 60% | 5,540 psi | 28% | 591 fps | 89.1% |
| Vihtavuori N330*² | <<locked>> | 68% | 12,154 psi | 62% | 853 fps | 86.4% |
| Winchester 231*² | <<locked>> | 60% | 15,389 psi | 79% | 899 fps | 91.1% |
| Winchester AutoComp *² | <<locked>> | 76% | 14,054 psi | 72% | 879 fps | 86.1% |
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 32 powders for .380 ACP loaded with the .356 | 100gr | Berry's Flat Base Round Nose. Maxam CSB 2 delivers the highest muzzle velocity at 1,001 fps; across all powders the maximum-charge window runs from 653 fps to 1,001 fps. Baschieri & Pellagri 102 Pistol gives the best case fill at 100 %, and 10 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. Vihtavuori N32C Tin Star, Maxam CSB 2 rank at the top here: for .380 ACP with the .356 | 100gr | Berry's Flat Base Round Nose 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.