Load Specifications
Load data in caliber .32 Win. Spec. with .323 | 139gr | Reichenberg HDB Universal bullet and 12 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ADI AR 2207, ReloadSwiss RS 36 and Vihtavuori N120.
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: 20"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| ADI AR 2207 | <<locked>> | 96% | 39,987 psi | 90% | 2418 fps | 99.2% |
| Alliant Reloder-7 | <<locked>> | 94% | 39,769 psi | 90% | 2365 fps | 96.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 28,500 psi | 64% | 1483 fps | 100% |
| IMR 4198 | <<locked>> | 98% | 38,914 psi | 88% | 2346 fps | 96.2% |
| IMR 4227 | <<locked>> | 86% | 37,826 psi | 86% | 2280 fps | 97.6% |
| Lovex S053 | <<locked>> | 88% | 38,667 psi | 87% | 2303 fps | 99.8% |
| Norma 200 | <<locked>> | 98% | 38,827 psi | 88% | 2405 fps | 96.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 27,833 psi | 63% | 1516 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 88% | 38,711 psi | 88% | 2339 fps | 97.7% |
| SNPE Vectan BA6 1/2 | <<locked>> | 90% | 38,305 psi | 87% | 2185 fps | 100% |
| Vihtavuori N110 | <<locked>> | 82% | 38,682 psi | 87% | 2251 fps | 100% |
| Vihtavuori N120 | <<locked>> | 94% | 37,942 psi | 86% | 2349 fps | 99.5% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 20"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| ADI AR 2207 | 25 gr | 84% | 27,398 psi | 62% | 2149 fps | 95.6% |
| Alliant Reloder-7 | <<locked>> | 92% | 37,434 psi | 85% | 2320 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 20,827 psi | 47% | 1325 fps | 100% |
| IMR 4198 | <<locked>> | 96% | 36,666 psi | 83% | 2303 fps | 95.5% |
| IMR 4227 | <<locked>> | 80% | 31,604 psi | 71% | 2152 fps | 95.8% |
| Lovex S053 | <<locked>> | 80% | 30,501 psi | 69% | 2136 fps | 98.6% |
| Norma 200 | <<locked>> | 94% | 34,330 psi | 78% | 2316 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 20,102 psi | 45% | 1348 fps | 100% |
| ReloadSwiss RS 36 | 24.8 gr | 80% | 30,269 psi | 68% | 2162 fps | 95% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 29,095 psi | 66% | 2021 fps | 100% |
| Vihtavuori N110 | <<locked>> | 80% | 36,216 psi | 82% | 2208 fps | 100% |
| Vihtavuori N120 | 23.8 gr | 80% | 24,627 psi | 56% | 2044 fps | 95.6% |
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 12 powders for .32 Win. Spec. loaded with the .323 | 139gr | Reichenberg HDB Universal. ADI AR 2207 delivers the highest muzzle velocity at 2,418 fps; across all powders the maximum-charge window runs from 1,483 fps to 2,418 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 12 of the 12 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (305 MPa), the top charges use 63–90 %, leaving at least 10 % headroom. The 139.0 gr projectile in 0.323" calls for a 1:16.5 twist; slower twists will usually not stabilise this weight. 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. ADI AR 2207, ReloadSwiss RS 36, Vihtavuori N120 rank at the top here: for .32 Win. Spec. with the .323 | 139gr | Reichenberg HDB Universal 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.