Load Specifications
Load data in caliber .32 Rem. with .321 | 148gr | H&N KS KB bullet and 16 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-10x, ADI AR 2207 and Norma 200.
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>> | 84% | 37,405 psi | 87% | 2310 fps | 97.3% |
| Accurate 2015ᴾ | <<locked>> | 100% | 36,767 psi | 86% | 2388 fps | 96.1% |
| ADI AR 2207 | <<locked>> | 90% | 38,595 psi | 90% | 2415 fps | 99.9% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 34,679 psi | 81% | 2405 fps | 97.9% |
| Alliant Reloder-10x | <<locked>> | 96% | 38,203 psi | 89% | 2431 fps | 97.8% |
| Alliant Reloder-7 | <<locked>> | 88% | 38,261 psi | 89% | 2369 fps | 98.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 29,399 psi | 69% | 1512 fps | 100% |
| IMR 4198 | <<locked>> | 92% | 37,043 psi | 87% | 2349 fps | 98.2% |
| IMR 4227 | <<locked>> | 82% | 38,130 psi | 89% | 2316 fps | 99.4% |
| Lovex S053 | <<locked>> | 82% | 36,970 psi | 86% | 2287 fps | 100% |
| Norma 200 | <<locked>> | 92% | 37,753 psi | 88% | 2415 fps | 98.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 29,066 psi | 68% | 1552 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 82% | 36,999 psi | 86% | 2336 fps | 99.1% |
| SNPE Vectan BA6 1/2 | <<locked>> | 86% | 38,638 psi | 90% | 2195 fps | 100% |
| Vihtavuori N120 | <<locked>> | 88% | 36,724 psi | 86% | 2346 fps | 100% |
| Vihtavuori N130 | <<locked>> | 96% | 37,376 psi | 87% | 2352 fps | 97.2% |
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% | 32,576 psi | 76% | 2211 fps | 95.8% |
| Accurate 2015 | <<locked>> | 98% | 34,330 psi | 80% | 2339 fps | 95.4% |
| ADI AR 2207 | 26.5 gr | 80% | 27,833 psi | 65% | 2188 fps | 98.2% |
| Alliant AR-Comp | <<locked>> | 94% | 28,529 psi | 67% | 2254 fps | 95.3% |
| Alliant Reloder-10x | 30.1 gr | 90% | 31,444 psi | 73% | 2290 fps | 95.7% |
| Alliant Reloder-7 | <<locked>> | 80% | 29,356 psi | 69% | 2178 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 21,524 psi | 50% | 1355 fps | 100% |
| IMR 4198 | <<locked>> | 84% | 29,356 psi | 69% | 2178 fps | 95.6% |
| IMR 4227 | <<locked>> | 80% | 35,607 psi | 83% | 2267 fps | 99% |
| Lovex S053 | <<locked>> | 80% | 34,577 psi | 81% | 2244 fps | 100% |
| Norma 200 | 29.1 gr | 84% | 28,805 psi | 67% | 2221 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 20,784 psi | 49% | 1378 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 34,650 psi | 81% | 2290 fps | 98.7% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 32,764 psi | 77% | 2096 fps | 100% |
| Vihtavuori N120 | <<locked>> | 80% | 28,210 psi | 66% | 2169 fps | 99.1% |
| Vihtavuori N130 | <<locked>> | 90% | 30,951 psi | 72% | 2221 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 16 powders for .32 Rem. loaded with the .321 | 148gr | H&N KS KB. Alliant Reloder-10x delivers the highest muzzle velocity at 2,431 fps; across all powders the maximum-charge window runs from 1,512 fps to 2,431 fps. Accurate 2015 gives the best case fill at 100 %, and 16 of the 16 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (295 MPa), the top charges use 68–90 %, leaving at least 10 % headroom. Accurate 2015, Alliant AR-Comp, Hodgdon TrailBoss 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. Alliant Reloder-10x, ADI AR 2207, Norma 200 rank at the top here: for .32 Rem. with the .321 | 148gr | H&N KS KB 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.