Load Specifications
Load data in caliber .35 Rem. with .357 | 158gr | Geco FMJ FLAT NOSE bullet and 8 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 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 ≥ 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% | 35,027 psi | 88% | 2480 fps | 98% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 28,297 psi | 71% | 1601 fps | 100% |
| IMR 4227 | <<locked>> | 84% | 35,650 psi | 89% | 2392 fps | 96.8% |
| Lovex S053 | <<locked>> | 84% | 34,142 psi | 86% | 2369 fps | 99.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 27,296 psi | 68% | 1631 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 84% | 34,069 psi | 85% | 2402 fps | 96.1% |
| SNPE Vectan BA6 1/2 | <<locked>> | 88% | 35,897 psi | 90% | 2303 fps | 100% |
| Vihtavuori N120 | <<locked>> | 92% | 35,447 psi | 89% | 2457 fps | 99% |
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 | 34.4 gr | 84% | 26,992 psi | 68% | 2283 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 20,276 psi | 51% | 1424 fps | 100% |
| IMR 4227 | <<locked>> | 80% | 31,386 psi | 79% | 2297 fps | 95.3% |
| Lovex S053 | <<locked>> | 80% | 30,081 psi | 75% | 2277 fps | 98.2% |
| ReloadSwiss RS 14 | 12 gr | 80% | 19,609 psi | 49% | 1453 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 82% | 31,763 psi | 80% | 2349 fps | 95.3% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 28,732 psi | 72% | 2159 fps | 100% |
| Vihtavuori N120 | 32.8 gr | 80% | 24,221 psi | 61% | 2175 fps | 95% |
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 14 powders for .35 Rem. loaded with the .357 | 158gr | Geco FMJ FLAT NOSE. Norma 200 delivers the highest muzzle velocity at 2,507 fps; across all powders the maximum-charge window runs from 1,601 fps to 2,507 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 14 of the 14 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (275 MPa), the top charges use 68–90 %, leaving at least 10 % headroom. Hodgdon TrailBoss, ReloadSwiss RS 14, Vihtavuori N130 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, ReloadSwiss RS 14 rank at the top here: for .35 Rem. with the .357 | 158gr | Geco FMJ FLAT NOSE they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 1680, Alliant Reloder-10x, Alliant Reloder-7 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.