Load Specifications
Load data in caliber .32 ACP (7.65 Browning) with .313 | 78gr | Rim Rock RN Cowboy bullet and 42 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Maxam CSB 2, Alliant BE-86 and Baschieri & Pellagri 102 Pistol.
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: 3.8"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate Solo 1000² | <<locked>> | 76% | 18,942 psi | 82% | 942 fps | 99.3% |
| Accurate Solo 1250* | <<locked>> | 88% | 19,870 psi | 86% | 997 fps | 94.9% |
| ADI AP 70N² | <<locked>> | 72% | 18,594 psi | 80% | 991 fps | 95% |
| ADI APS 350² | <<locked>> | 72% | 20,929 psi | 90% | 892 fps | 100% |
| ADI APS 450² | <<locked>> | 72% | 20,131 psi | 87% | 909 fps | 100% |
| ADI AS 30 | <<locked>> | 80% | 20,842 psi | 90% | 968 fps | 100% |
| ADI AS 50N² | <<locked>> | 76% | 20,436 psi | 88% | 991 fps | 99.4% |
| Alliant BE-86 | <<locked>> | 88% | 19,769 psi | 85% | 1007 fps | 97.3% |
| Alliant BULLSEYE*² | <<locked>> | 76% | 20,392 psi | 88% | 1024 fps | 89.6% |
| Alliant Green Dot | <<locked>> | 80% | 20,218 psi | 87% | 988 fps | 99.4% |
| Alliant RED DOT | <<locked>> | 84% | 20,624 psi | 89% | 988 fps | 100% |
| Alliant Sport Pistol*² | <<locked>> | 72% | 20,233 psi | 87% | 1020 fps | 88.4% |
| Alliant UNIQUE* | <<locked>> | 88% | 18,681 psi | 81% | 1007 fps | 87.2% |
| Baschieri & Pellagri 100 | <<locked>> | 80% | 18,478 psi | 80% | 945 fps | 97.7% |
| Baschieri & Pellagri 102 Pistolᴾ | <<locked>> | 100% | 16,752 psi | 72% | 951 fps | 98.6% |
| Baschieri & Pellagri 103 Pistol | <<locked>> | 80% | 19,914 psi | 86% | 1007 fps | 99.1% |
| Hodgdon CFE Pistol*² | <<locked>> | 64% | 18,956 psi | 82% | 994 fps | 92.9% |
| Hodgdon Clays² | <<locked>> | 68% | 19,131 psi | 82% | 876 fps | 100% |
| Hodgdon TrailBoss*ᴾ | <<locked>> | 100% | 7,455 psi | 32% | 663 fps | 91.1% |
| Hodgdon Universal | <<locked>> | 80% | 18,594 psi | 80% | 991 fps | 95% |
| Lovex S011² | <<locked>> | 68% | 20,508 psi | 88% | 978 fps | 96.8% |
| Lovex S020* | <<locked>> | 84% | 20,668 psi | 89% | 1030 fps | 91.5% |
| Maxam CSB 1 | <<locked>> | 92% | 20,175 psi | 87% | 1004 fps | 95.3% |
| Maxam CSB 2 | <<locked>> | 96% | 20,566 psi | 89% | 1070 fps | 99.5% |
| Maxam CSB 3 | <<locked>> | 84% | 20,204 psi | 87% | 997 fps | 98.6% |
| Maxam CSB 4 | <<locked>> | 80% | 19,812 psi | 85% | 981 fps | 99.7% |
| Maxam CSB 5² | <<locked>> | 76% | 20,813 psi | 90% | 974 fps | 100% |
| ReloadSwiss RS 12 | <<locked>> | 80% | 20,030 psi | 86% | 1053 fps | 100% |
| ReloadSwiss RS 20* | <<locked>> | 96% | 20,407 psi | 88% | 1053 fps | 90.9% |
| Rottweil P 801² | <<locked>> | 72% | 19,508 psi | 84% | 1010 fps | 100% |
| SNPE Vectan A0* | <<locked>> | 92% | 20,581 psi | 89% | 994 fps | 88.3% |
| SNPE Vectan A1² | <<locked>> | 76% | 18,811 psi | 81% | 958 fps | 95.8% |
| SNPE Vectan BA 9* | <<locked>> | 80% | 20,653 psi | 89% | 991 fps | 93.2% |
| SNPE Vectan BA10² | <<locked>> | 68% | 20,102 psi | 87% | 909 fps | 100% |
| SNPE Vectan BA9 1/2 | <<locked>> | 84% | 20,624 psi | 89% | 1014 fps | 95.2% |
| Somchem MS200* | <<locked>> | 84% | 19,160 psi | 83% | 984 fps | 88.8% |
| Vihtavuori N320 | <<locked>> | 80% | 18,811 psi | 81% | 988 fps | 99.6% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 12,865 psi | 55% | 840 fps | 100% |
| Vihtavuori N330 | <<locked>> | 84% | 19,377 psi | 84% | 1030 fps | 96.4% |
| Vihtavuori N340* | <<locked>> | 88% | 20,871 psi | 90% | 1027 fps | 89.3% |
| Winchester 231² | <<locked>> | 68% | 19,189 psi | 83% | 978 fps | 95.8% |
| Winchester AutoComp * | <<locked>> | 88% | 19,014 psi | 82% | 991 fps | 93% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 3.8"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate Solo 1000² | <<locked>> | 60% | 13,329 psi | 57% | 817 fps | 96% |
| Accurate Solo 1250*² | <<locked>> | 68% | 12,227 psi | 53% | 823 fps | 86.9% |
| ADI AP 70N*² | <<locked>> | 60% | 13,721 psi | 59% | 876 fps | 90.2% |
| ADI APS 350² | <<locked>> | 60% | 15,548 psi | 67% | 804 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 15,287 psi | 66% | 823 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 13,358 psi | 58% | 820 fps | 99.4% |
| ADI AS 50N² | <<locked>> | 60% | 13,532 psi | 58% | 840 fps | 95.5% |
| Alliant BE-86*² | 2.2 gr | 60% | 9,311 psi | 40% | 745 fps | 85.3% |
| Alliant BULLSEYE*² | <<locked>> | 68% | 16,273 psi | 70% | 932 fps | 85.4% |
| Alliant Green Dot*² | <<locked>> | 60% | 12,285 psi | 53% | 807 fps | 94.2% |
| Alliant RED DOT² | <<locked>> | 60% | 11,908 psi | 51% | 797 fps | 98.1% |
| Alliant Sport Pistol*² | <<locked>> | 68% | 18,826 psi | 81% | 991 fps | 87% |
| Alliant UNIQUE* | <<locked>> | 84% | 17,419 psi | 75% | 978 fps | 85.9% |
| Baschieri & Pellagri 100*² | <<locked>> | 60% | 10,994 psi | 47% | 768 fps | 90.5% |
| Baschieri & Pellagri 102 Pistol*² | 2.1 gr | 68% | 7,803 psi | 34% | 696 fps | 86.8% |
| Baschieri & Pellagri 103 Pistol*² | <<locked>> | 60% | 10,921 psi | 47% | 804 fps | 91.8% |
| Hodgdon CFE Pistol*² | <<locked>> | 60% | 17,680 psi | 76% | 968 fps | 91.8% |
| Hodgdon Clays² | <<locked>> | 60% | 15,563 psi | 67% | 814 fps | 100% |
| Hodgdon TrailBoss* | <<locked>> | 84% | 5,729 psi | 25% | 584 fps | 86% |
| Hodgdon Universal*² | <<locked>> | 60% | 11,690 psi | 50% | 817 fps | 87.2% |
| Lovex S011*² | <<locked>> | 60% | 16,041 psi | 69% | 889 fps | 93.6% |
| Lovex S020*² | <<locked>> | 72% | 15,069 psi | 65% | 912 fps | 86.1% |
| Maxam CSB 1*² | <<locked>> | 72% | 12,778 psi | 55% | 833 fps | 87.9% |
| Maxam CSB 2*² | 2.1 gr | 64% | 9,079 psi | 39% | 778 fps | 88.4% |
| Maxam CSB 3*² | <<locked>> | 60% | 10,283 psi | 44% | 758 fps | 89.2% |
| Maxam CSB 4*² | <<locked>> | 60% | 11,719 psi | 51% | 797 fps | 94.8% |
| Maxam CSB 5² | <<locked>> | 60% | 12,952 psi | 56% | 823 fps | 100% |
| ReloadSwiss RS 12*² | <<locked>> | 60% | 10,196 psi | 44% | 820 fps | 93.9% |
| ReloadSwiss RS 20* | <<locked>> | 84% | 15,548 psi | 67% | 942 fps | 85.4% |
| Rottweil P 801² | <<locked>> | 60% | 12,966 psi | 56% | 873 fps | 98.9% |
| SNPE Vectan A0* | <<locked>> | 84% | 18,014 psi | 78% | 942 fps | 85.8% |
| SNPE Vectan A1*² | <<locked>> | 60% | 12,067 psi | 52% | 797 fps | 88.8% |
| SNPE Vectan BA 9*² | <<locked>> | 64% | 13,474 psi | 58% | 833 fps | 85.8% |
| SNPE Vectan BA10² | <<locked>> | 60% | 16,781 psi | 72% | 853 fps | 100% |
| SNPE Vectan BA9 1/2*² | <<locked>> | 64% | 12,183 psi | 53% | 817 fps | 86.4% |
| Somchem MS200* | <<locked>> | 80% | 17,898 psi | 77% | 958 fps | 87.6% |
| Vihtavuori N320*² | <<locked>> | 60% | 10,878 psi | 47% | 801 fps | 94% |
| Vihtavuori N32C Tin Star*² | <<locked>> | 60% | 5,773 psi | 25% | 604 fps | 92% |
| Vihtavuori N330*² | <<locked>> | 64% | 11,139 psi | 48% | 823 fps | 86.6% |
| Vihtavuori N340* | <<locked>> | 80% | 16,752 psi | 72% | 942 fps | 85.2% |
| Winchester 231*² | <<locked>> | 60% | 15,273 psi | 66% | 892 fps | 92.5% |
| Winchester AutoComp *² | <<locked>> | 72% | 12,633 psi | 54% | 843 fps | 85.9% |
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 42 powders for .32 ACP (7.65 Browning) loaded with the .313 | 78gr | Rim Rock RN Cowboy. Maxam CSB 2 delivers the highest muzzle velocity at 1,070 fps; across all powders the maximum-charge window runs from 663 fps to 1,070 fps. Baschieri & Pellagri 102 Pistol gives the best case fill at 100 %, and 27 of the 42 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (160 MPa), the top charges use 32–90 %, 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, Alliant BE-86, Baschieri & Pellagri 102 Pistol rank at the top here: for .32 ACP (7.65 Browning) with the .313 | 78gr | Rim Rock RN Cowboy they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate Solo 1250, Alliant BULLSEYE, Alliant Sport 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.