Load Specifications
Load data in caliber .25-35 Win. with .257 | 105gr | Reichenberg Spezial Jagd bullet and 24 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are IMR 3031, Alliant AR-Comp and Accurate 4064.
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 |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 88% | 39,697 psi | 90% | 2369 fps | 99.1% |
| Accurate 2460 | <<locked>> | 84% | 37,565 psi | 85% | 2346 fps | 95.9% |
| Accurate 2495 | <<locked>> | 96% | 39,827 psi | 90% | 2434 fps | 99.3% |
| Accurate 4064 | <<locked>> | 98% | 39,421 psi | 89% | 2444 fps | 97.3% |
| ADI AR 2219 | <<locked>> | 82% | 39,711 psi | 90% | 2405 fps | 97.8% |
| Alliant AR-Comp | <<locked>> | 90% | 38,812 psi | 88% | 2434 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 82% | 37,710 psi | 85% | 2339 fps | 99.4% |
| Hodgdon H322 | <<locked>> | 86% | 38,377 psi | 87% | 2379 fps | 97.5% |
| Hodgdon H335 | <<locked>> | 82% | 38,957 psi | 88% | 2395 fps | 96.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,040 psi | 75% | 1552 fps | 100% |
| IMR 3031 | <<locked>> | 94% | 37,971 psi | 86% | 2428 fps | 98.2% |
| IMR 4198 | <<locked>> | 82% | 39,262 psi | 89% | 2333 fps | 99.9% |
| Norma 202 | <<locked>> | 90% | 37,579 psi | 85% | 2365 fps | 96.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,083 psi | 75% | 1588 fps | 100% |
| Rottweil R 901 | <<locked>> | 88% | 39,291 psi | 89% | 2365 fps | 96.5% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 38,493 psi | 87% | 2352 fps | 98.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 38,189 psi | 86% | 2297 fps | 96.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 39,334 psi | 89% | 2336 fps | 97.7% |
| Somchem S335 | <<locked>> | 90% | 39,537 psi | 89% | 2343 fps | 97.6% |
| Vihtavuori N130 | <<locked>> | 84% | 38,348 psi | 87% | 2306 fps | 99.4% |
| Vihtavuori N133 | <<locked>> | 90% | 39,972 psi | 90% | 2349 fps | 99% |
| Vihtavuori N135 | <<locked>> | 94% | 38,189 psi | 86% | 2392 fps | 99% |
| Vihtavuori N140 | <<locked>> | 92% | 37,826 psi | 86% | 2352 fps | 96.7% |
| Vihtavuori N540 | <<locked>> | 94% | 39,001 psi | 88% | 2388 fps | 96.4% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 20"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 30,951 psi | 70% | 2185 fps | 96.9% |
| Accurate 2460 | <<locked>> | 82% | 35,128 psi | 79% | 2293 fps | 95.1% |
| Accurate 2495 | <<locked>> | 84% | 26,672 psi | 60% | 2146 fps | 95.6% |
| Accurate 4064 | 25.8 gr | 92% | 32,460 psi | 73% | 2300 fps | 95% |
| ADI AR 2219 | <<locked>> | 80% | 37,115 psi | 84% | 2356 fps | 97.2% |
| Alliant AR-Comp | 22.2 gr | 80% | 28,152 psi | 64% | 2192 fps | 98.4% |
| Alliant Reloder-10x | <<locked>> | 80% | 35,592 psi | 80% | 2300 fps | 99.1% |
| Hodgdon H322 | <<locked>> | 80% | 31,647 psi | 72% | 2231 fps | 95.2% |
| Hodgdon H335 | <<locked>> | 80% | 36,492 psi | 82% | 2343 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,134 psi | 55% | 1378 fps | 100% |
| IMR 3031 | 23.1 gr | 86% | 29,936 psi | 68% | 2241 fps | 95.4% |
| IMR 4198 | <<locked>> | 80% | 37,028 psi | 84% | 2290 fps | 99.8% |
| Norma 202 | <<locked>> | 88% | 35,563 psi | 80% | 2323 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,323 psi | 55% | 1417 fps | 100% |
| Rottweil R 901 | <<locked>> | 84% | 34,911 psi | 79% | 2270 fps | 95% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 35,897 psi | 81% | 2300 fps | 97.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 35,694 psi | 81% | 2247 fps | 95.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 32,532 psi | 74% | 2198 fps | 95.6% |
| Somchem S335 | <<locked>> | 84% | 32,924 psi | 74% | 2208 fps | 95.6% |
| Vihtavuori N130 | <<locked>> | 80% | 33,910 psi | 77% | 2218 fps | 98.6% |
| Vihtavuori N133 | <<locked>> | 80% | 29,472 psi | 67% | 2126 fps | 96.2% |
| Vihtavuori N135 | <<locked>> | 82% | 26,397 psi | 60% | 2119 fps | 95.1% |
| Vihtavuori N140 | <<locked>> | 88% | 33,504 psi | 76% | 2264 fps | 95.2% |
| Vihtavuori N540 | <<locked>> | 92% | 36,521 psi | 83% | 2339 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 59 powders for .25-35 Win. loaded with the .257 | 105gr | Reichenberg Spezial Jagd. Accurate 4064 delivers the highest muzzle velocity at 2,444 fps; across all powders the maximum-charge window runs from 1,552 fps to 2,444 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 59 of the 59 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (305 MPa), the top charges use 75–90 %, leaving at least 10 % headroom. The 105.0 gr projectile in 0.257" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. Hodgdon TrailBoss, ReloadSwiss RS 14, Rottweil R 903 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. IMR 3031, Alliant AR-Comp, Accurate 4064 rank at the top here: for .25-35 Win. with the .257 | 105gr | Reichenberg Spezial Jagd they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2206H, ADI Benchmark 8208, Alliant Power Pro 1200-R 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.