Load Specifications
Load data in caliber .32 Win. Spec. with .323 | 139gr | Prvi Partizan SP bullet and 11 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ADI AR 2207, Vihtavuori N120 and SNPE Vectan BA6 1/2.
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>> | 92% | 38,421 psi | 87% | 2405 fps | 99.1% |
| Alliant Reloder-7 | <<locked>> | 90% | 38,566 psi | 87% | 2356 fps | 96.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 29,573 psi | 67% | 1512 fps | 100% |
| IMR 4198 | <<locked>> | 96% | 39,189 psi | 89% | 2372 fps | 96.8% |
| IMR 4227 | <<locked>> | 84% | 38,609 psi | 87% | 2313 fps | 98.1% |
| Lovex S053 | <<locked>> | 86% | 39,276 psi | 89% | 2326 fps | 99.9% |
| Norma 200 | <<locked>> | 94% | 37,927 psi | 86% | 2402 fps | 96.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 29,022 psi | 66% | 1549 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 86% | 39,392 psi | 89% | 2369 fps | 98.2% |
| SNPE Vectan BA6 1/2 | <<locked>> | 88% | 38,957 psi | 88% | 2208 fps | 100% |
| Vihtavuori N120 | <<locked>> | 92% | 38,638 psi | 87% | 2375 fps | 99.7% |
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 | 25.1 gr | 80% | 26,701 psi | 60% | 2139 fps | 95.7% |
| Alliant Reloder-7 | <<locked>> | 88% | 36,085 psi | 82% | 2310 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 21,495 psi | 49% | 1348 fps | 100% |
| IMR 4198 | <<locked>> | 92% | 35,085 psi | 79% | 2287 fps | 95.5% |
| IMR 4227 | <<locked>> | 80% | 33,939 psi | 77% | 2218 fps | 97% |
| Lovex S053 | <<locked>> | 80% | 33,040 psi | 75% | 2205 fps | 99.3% |
| Norma 200 | <<locked>> | 90% | 33,533 psi | 76% | 2310 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 21,205 psi | 48% | 1381 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 32,924 psi | 74% | 2238 fps | 96.4% |
| SNPE Vectan BA6 1/2 | 22 gr | 80% | 31,444 psi | 71% | 2077 fps | 100% |
| Vihtavuori N120 | 25.1 gr | 80% | 27,079 psi | 61% | 2123 fps | 97.2% |
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 22 powders for .32 Win. Spec. loaded with the .323 | 139gr | Prvi Partizan SP. ADI AR 2219 delivers the highest muzzle velocity at 2,425 fps; across all powders the maximum-charge window runs from 1,512 fps to 2,425 fps. Accurate 2015 gives the best case fill at 100 %, and 22 of the 22 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (305 MPa), the top charges use 66–90 %, 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. ADI AR 2207, Vihtavuori N120, SNPE Vectan BA6 1/2 rank at the top here: for .32 Win. Spec. with the .323 | 139gr | Prvi Partizan SP they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2015, Accurate LT-30, ADI AR 2219 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.