Load Specifications
Load data in caliber .32 Rem. with .321 | 170gr | H&N KS F bullet and 19 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are SNPE Vectan SP 3, Alliant Reloder-10x and Alliant AR-Comp.
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 ≥ 80% and propellant combustion ≥ 95%. 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: 22"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 82% | 37,376 psi | 87% | 2139 fps | 98.4% |
| Accurate 2015 | <<locked>> | 98% | 37,434 psi | 87% | 2224 fps | 97.7% |
| Accurate LT-30 | <<locked>> | 88% | 38,624 psi | 90% | 2146 fps | 96.3% |
| ADI AR 2207 | <<locked>> | 86% | 36,680 psi | 86% | 2192 fps | 100% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 37,289 psi | 87% | 2287 fps | 99.5% |
| Alliant Reloder-10x | <<locked>> | 92% | 36,492 psi | 85% | 2218 fps | 98.5% |
| Alliant Reloder-7 | <<locked>> | 86% | 38,595 psi | 90% | 2195 fps | 99.1% |
| Baschieri & Pellagri 106 | <<locked>> | 88% | 36,143 psi | 84% | 2129 fps | 95.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 30,356 psi | 71% | 1398 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 35,462 psi | 83% | 2254 fps | 95.9% |
| IMR 4198 | <<locked>> | 90% | 37,362 psi | 87% | 2178 fps | 99.2% |
| Norma 200 | <<locked>> | 90% | 38,421 psi | 90% | 2241 fps | 99.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 29,776 psi | 70% | 1430 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 82% | 36,796 psi | 86% | 1985 fps | 100% |
| SNPE Vectan SP 3 | <<locked>> | 92% | 37,768 psi | 88% | 2221 fps | 96.9% |
| Vihtavuori N120 | <<locked>> | 86% | 36,999 psi | 86% | 2162 fps | 100% |
| Vihtavuori N130 | <<locked>> | 94% | 37,811 psi | 88% | 2185 fps | 98.4% |
| Vihtavuori N133 | <<locked>> | 98% | 37,115 psi | 87% | 2178 fps | 97.3% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 31,546 psi | 74% | 2152 fps | 95.9% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 22"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 80% | 34,940 psi | 82% | 2093 fps | 97.9% |
| Accurate 2015 | <<locked>> | 92% | 30,835 psi | 72% | 2096 fps | 95.7% |
| Accurate LT-30 | <<locked>> | 86% | 36,129 psi | 84% | 2100 fps | 95.5% |
| ADI AR 2207 | <<locked>> | 80% | 30,110 psi | 70% | 2067 fps | 99.5% |
| Alliant AR-Comp | 28.7 gr | 88% | 25,440 psi | 59% | 2014 fps | 95.6% |
| Alliant Reloder-10x | 26.1 gr | 82% | 26,310 psi | 61% | 2001 fps | 95.1% |
| Alliant Reloder-7 | <<locked>> | 80% | 31,662 psi | 74% | 2064 fps | 97.6% |
| Baschieri & Pellagri 106 | <<locked>> | 86% | 33,924 psi | 79% | 2087 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 21,959 psi | 51% | 1243 fps | 100% |
| IMR 3031 | <<locked>> | 98% | 33,156 psi | 77% | 2205 fps | 95% |
| IMR 4198 | <<locked>> | 80% | 27,775 psi | 65% | 1978 fps | 96.5% |
| Norma 200 | <<locked>> | 80% | 27,499 psi | 64% | 2024 fps | 96.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 21,625 psi | 51% | 1273 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 34,621 psi | 81% | 1952 fps | 100% |
| SNPE Vectan SP 3 | 28.1 gr | 88% | 33,562 psi | 78% | 2139 fps | 95.5% |
| Vihtavuori N120 | <<locked>> | 80% | 30,429 psi | 71% | 2044 fps | 99.9% |
| Vihtavuori N130 | <<locked>> | 84% | 27,514 psi | 64% | 1978 fps | 95.2% |
| Vihtavuori N133 | <<locked>> | 92% | 30,603 psi | 72% | 2051 fps | 95.1% |
| Vihtavuori N135 | <<locked>> | 98% | 29,704 psi | 69% | 2110 fps | 95.1% |
Recommended = one of the top powders for this cartridge and bullet combination.
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 19 powders for .32 Rem. loaded with the .321 | 170gr | H&N KS F. Alliant AR-Comp delivers the highest muzzle velocity at 2,287 fps; across all powders the maximum-charge window runs from 1,398 fps to 2,287 fps. Alliant AR-Comp gives the best case fill at 100 %, and 19 of the 19 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (295 MPa), the top charges use 70–90 %, leaving at least 10 % headroom. Alliant AR-Comp, Hodgdon TrailBoss, IMR 3031 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. SNPE Vectan SP 3, Alliant Reloder-10x, Alliant AR-Comp rank at the top here: for .32 Rem. with the .321 | 170gr | H&N KS F they combine a high case fill with complete burn and sit in the upper velocity band. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.