Load Specifications
Load data in caliber .32 Long Colt with .311 | 93gr | LEE Mold 311-093-1R bullet and 8 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.
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 1250*² | <<locked>> | 64% | 12,676 psi | 87% | 794 fps | 91.6% |
| Baschieri & Pellagri 102 Pistol | <<locked>> | 80% | 13,097 psi | 90% | 810 fps | 98.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 8,499 psi | 59% | 666 fps | 96.2% |
| Maxam CSB 1*² | <<locked>> | 64% | 12,096 psi | 83% | 774 fps | 90.9% |
| Maxam CSB 2² | <<locked>> | 64% | 11,458 psi | 79% | 801 fps | 95.6% |
| ReloadSwiss RS 14*ᴾ | <<locked>> | 100% | 7,498 psi | 52% | 646 fps | 89.4% |
| Vihtavuori N32C Tin Star | <<locked>> | 84% | 11,400 psi | 79% | 748 fps | 100% |
| Winchester AutoComp *² | <<locked>> | 64% | 12,299 psi | 85% | 787 fps | 89.4% |
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 1250*² | <<locked>> | 60% | 11,705 psi | 81% | 768 fps | 90.2% |
| Baschieri & Pellagri 102 Pistol*² | <<locked>> | 60% | 7,194 psi | 50% | 640 fps | 89.2% |
| Hodgdon TrailBoss*² | <<locked>> | 72% | 4,917 psi | 34% | 525 fps | 86.6% |
| Maxam CSB 1*² | <<locked>> | 60% | 11,211 psi | 77% | 748 fps | 89.5% |
| Maxam CSB 2*² | <<locked>> | 60% | 9,703 psi | 67% | 748 fps | 92.9% |
| ReloadSwiss RS 14* | <<locked>> | 92% | 6,411 psi | 44% | 604 fps | 86.3% |
| Vihtavuori N32C Tin Star² | 1.9 gr | 60% | 6,121 psi | 42% | 591 fps | 96% |
| Winchester AutoComp *² | <<locked>> | 60% | 10,747 psi | 74% | 745 fps | 86.9% |
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 8 powders for .32 Long Colt loaded with the .311 | 93gr | LEE Mold 311-093-1R. Baschieri & Pellagri 102 Pistol delivers the highest muzzle velocity at 810 fps; across all powders the maximum-charge window runs from 646 fps to 810 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 4 of the 8 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (100 MPa), the top charges use 52–90 %, leaving at least 10 % headroom. Hodgdon TrailBoss, ReloadSwiss RS 14 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 rank at the top here: for .32 Long Colt with the .311 | 93gr | LEE Mold 311-093-1R they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate Solo 1250, Maxam CSB 1, ReloadSwiss RS 14 burn incompletely and react more sensitively to barrel length and temperature. Accurate Solo 1250, Baschieri & Pellagri 102 Pistol, Hodgdon TrailBoss 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.