Load Specifications
Load data in caliber .32 H&R Mag. with .309 | 113gr | LEE Mold C309-113-F bullet and 14 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon TrailBoss and ReloadSwiss RS 14.
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: 4"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Alliant Herco² | <<locked>> | 76% | 18,072 psi | 89% | 912 fps | 97.2% |
| Alliant UNIQUE² | <<locked>> | 64% | 17,985 psi | 89% | 912 fps | 97% |
| Baschieri & Pellagri 102 Pistol² | <<locked>> | 76% | 17,695 psi | 87% | 863 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 13,126 psi | 65% | 745 fps | 100% |
| Maxam CSB 1² | <<locked>> | 64% | 17,158 psi | 85% | 860 fps | 99.8% |
| Maxam CSB 2² | <<locked>> | 64% | 17,695 psi | 87% | 889 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 11,066 psi | 55% | 722 fps | 99.7% |
| ReloadSwiss RS 20² | <<locked>> | 64% | 16,824 psi | 83% | 902 fps | 98.2% |
| SNPE Vectan A0² | <<locked>> | 64% | 17,666 psi | 87% | 873 fps | 96.7% |
| SNPE Vectan BA7 1/2*² | <<locked>> | 72% | 18,173 psi | 90% | 906 fps | 89.6% |
| Vihtavuori 3N37*² | <<locked>> | 64% | 16,447 psi | 81% | 892 fps | 89.1% |
| Vihtavuori N32C Tin Star | <<locked>> | 84% | 18,014 psi | 89% | 817 fps | 100% |
| Vihtavuori N350*² | <<locked>> | 72% | 17,970 psi | 89% | 922 fps | 91.2% |
| Winchester AutoComp ² | <<locked>> | 64% | 18,275 psi | 90% | 892 fps | 99.7% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 4"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Alliant Herco*² | <<locked>> | 60% | 11,342 psi | 56% | 755 fps | 90.1% |
| Alliant UNIQUE² | <<locked>> | 60% | 16,085 psi | 79% | 873 fps | 95.6% |
| Baschieri & Pellagri 102 Pistol² | <<locked>> | 60% | 11,139 psi | 55% | 732 fps | 99.9% |
| Hodgdon TrailBoss² | 1.8 gr | 60% | 5,395 psi | 27% | 525 fps | 95.7% |
| Maxam CSB 1² | <<locked>> | 60% | 15,243 psi | 75% | 820 fps | 99.3% |
| Maxam CSB 2² | <<locked>> | 60% | 15,664 psi | 77% | 853 fps | 100% |
| ReloadSwiss RS 14*² | 1.8 gr | 60% | 4,670 psi | 23% | 499 fps | 88.3% |
| ReloadSwiss RS 20² | <<locked>> | 60% | 14,170 psi | 70% | 843 fps | 96.2% |
| SNPE Vectan A0² | <<locked>> | 60% | 15,853 psi | 78% | 837 fps | 95.4% |
| SNPE Vectan BA7 1/2*² | <<locked>> | 64% | 14,359 psi | 71% | 823 fps | 85.2% |
| Vihtavuori 3N37*² | <<locked>> | 60% | 14,127 psi | 70% | 840 fps | 86.2% |
| Vihtavuori N32C Tin Star² | <<locked>> | 60% | 9,326 psi | 46% | 653 fps | 100% |
| Vihtavuori N350*² | <<locked>> | 64% | 13,851 psi | 68% | 830 fps | 86.3% |
| Winchester AutoComp ² | <<locked>> | 60% | 15,664 psi | 77% | 843 fps | 98.8% |
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 14 powders for .32 H&R Mag. loaded with the .309 | 113gr | LEE Mold C309-113-F. Vihtavuori N350 delivers the highest muzzle velocity at 922 fps; across all powders the maximum-charge window runs from 722 fps to 922 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 3 of the 14 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (140 MPa), the top charges use 55–90 %, 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. Hodgdon TrailBoss, ReloadSwiss RS 14 rank at the top here: for .32 H&R Mag. with the .309 | 113gr | LEE Mold C309-113-F they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, SNPE Vectan BA7 1/2, Vihtavuori 3N37, Vihtavuori N350 burn incompletely and react more sensitively to barrel length and temperature. Alliant Herco, Alliant UNIQUE, Baschieri & Pellagri 102 Pistol 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.