Load Specifications
Load data in caliber .32 H&R Mag. with .314 | 100gr | Sellier & Bellot LRN bullet and 15 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, 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 |
|---|---|---|---|---|---|---|
| Accurate Solo 1250² | <<locked>> | 64% | 17,883 psi | 88% | 942 fps | 99.5% |
| Alliant BE-86² | <<locked>> | 64% | 17,825 psi | 88% | 942 fps | 100% |
| Alliant Herco | <<locked>> | 80% | 18,275 psi | 90% | 981 fps | 95.8% |
| Alliant UNIQUE*² | <<locked>> | 64% | 16,694 psi | 82% | 948 fps | 94.5% |
| Baschieri & Pellagri 102 Pistol | <<locked>> | 80% | 18,144 psi | 89% | 938 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 11,574 psi | 57% | 768 fps | 100% |
| Maxam CSB 1² | <<locked>> | 68% | 17,970 psi | 89% | 942 fps | 99.5% |
| Maxam CSB 2² | <<locked>> | 68% | 18,318 psi | 90% | 968 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 10,298 psi | 51% | 755 fps | 98.5% |
| ReloadSwiss RS 20² | <<locked>> | 68% | 17,202 psi | 85% | 978 fps | 97.1% |
| SNPE Vectan A0² | <<locked>> | 68% | 18,304 psi | 90% | 951 fps | 95.7% |
| Vihtavuori N32C Tin Star | <<locked>> | 88% | 17,738 psi | 87% | 883 fps | 100% |
| Vihtavuori N340² | <<locked>> | 64% | 17,535 psi | 86% | 951 fps | 95.6% |
| Vihtavuori N350*² | <<locked>> | 72% | 17,172 psi | 85% | 968 fps | 88% |
| Winchester AutoComp ² | <<locked>> | 64% | 16,911 psi | 83% | 932 fps | 98.5% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 4"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate Solo 1250² | <<locked>> | 60% | 14,982 psi | 74% | 879 fps | 98.2% |
| Alliant BE-86² | <<locked>> | 60% | 15,200 psi | 75% | 886 fps | 99.6% |
| Alliant Herco*² | <<locked>> | 60% | 10,573 psi | 52% | 781 fps | 86.4% |
| Alliant UNIQUE*² | <<locked>> | 60% | 14,997 psi | 74% | 909 fps | 92.8% |
| Baschieri & Pellagri 102 Pistol² | <<locked>> | 60% | 10,370 psi | 51% | 764 fps | 98.9% |
| Hodgdon TrailBoss*² | 1.8 gr | 60% | 4,772 psi | 24% | 535 fps | 91.8% |
| Maxam CSB 1² | <<locked>> | 60% | 14,330 psi | 71% | 860 fps | 97.8% |
| Maxam CSB 2² | <<locked>> | 60% | 14,431 psi | 71% | 892 fps | 100% |
| ReloadSwiss RS 14*² | 2 gr | 64% | 4,859 psi | 24% | 548 fps | 86.6% |
| ReloadSwiss RS 20*² | <<locked>> | 60% | 13,111 psi | 65% | 876 fps | 93% |
| SNPE Vectan A0*² | <<locked>> | 60% | 14,881 psi | 73% | 873 fps | 92.6% |
| Vihtavuori N32C Tin Star² | 2.5 gr | 60% | 8,818 psi | 43% | 692 fps | 100% |
| Vihtavuori N340*² | <<locked>> | 60% | 15,737 psi | 78% | 912 fps | 94% |
| Vihtavuori N350*² | <<locked>> | 68% | 14,823 psi | 73% | 912 fps | 85.1% |
| Winchester AutoComp ² | <<locked>> | 60% | 14,562 psi | 72% | 879 fps | 96.9% |
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 15 powders for .32 H&R Mag. loaded with the .314 | 100gr | Sellier & Bellot LRN. Alliant Herco delivers the highest muzzle velocity at 981 fps; across all powders the maximum-charge window runs from 755 fps to 981 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 5 of the 15 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (140 MPa), the top charges use 51–90 %, 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, Hodgdon TrailBoss, ReloadSwiss RS 14 rank at the top here: for .32 H&R Mag. with the .314 | 100gr | Sellier & Bellot LRN they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Alliant UNIQUE, Vihtavuori N350 burn incompletely and react more sensitively to barrel length and temperature. Accurate Solo 1250, Alliant BE-86, Alliant Herco 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.