Load Specifications
Load data in caliber 9 x 57 Mauser with .358 | 200gr | Peregrine Bushmaster (VRG-3) bullet and 21 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 2015.
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: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 92% | 35,186 psi | 87% | 2326 fps | 97.9% |
| Accurate 2495ᴾ | <<locked>> | 100% | 33,054 psi | 81% | 2365 fps | 97.8% |
| Accurate LT-30 | <<locked>> | 82% | 35,172 psi | 87% | 2228 fps | 96.2% |
| ADI AR 2207 | <<locked>> | 82% | 36,260 psi | 89% | 2326 fps | 100% |
| ADI AR 2219 | <<locked>> | 86% | 36,651 psi | 90% | 2379 fps | 96.5% |
| Alliant AR-Comp | <<locked>> | 94% | 34,766 psi | 86% | 2392 fps | 99.6% |
| Alliant Reloder-10x | <<locked>> | 88% | 36,143 psi | 89% | 2356 fps | 99% |
| Baschieri & Pellagri 106 | <<locked>> | 84% | 35,462 psi | 87% | 2260 fps | 96.6% |
| Hodgdon H322 | <<locked>> | 88% | 35,650 psi | 88% | 2356 fps | 96.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 31,212 psi | 77% | 1516 fps | 100% |
| IMR 3031 | <<locked>> | 96% | 35,331 psi | 87% | 2408 fps | 97% |
| IMR 4198 | <<locked>> | 86% | 36,622 psi | 90% | 2313 fps | 99.5% |
| Norma 200 | <<locked>> | 84% | 35,810 psi | 88% | 2336 fps | 99.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 30,835 psi | 76% | 1549 fps | 100% |
| SNPE Vectan SP 3 | <<locked>> | 86% | 35,012 psi | 86% | 2316 fps | 97% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 35,911 psi | 88% | 2297 fps | 96.1% |
| Somchem S335 | <<locked>> | 94% | 35,563 psi | 88% | 2303 fps | 96% |
| Vihtavuori N120 | <<locked>> | 82% | 36,521 psi | 90% | 2293 fps | 100% |
| Vihtavuori N130 | <<locked>> | 88% | 35,027 psi | 86% | 2277 fps | 98.5% |
| Vihtavuori N133 | <<locked>> | 94% | 36,477 psi | 90% | 2316 fps | 98% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 35,998 psi | 89% | 2395 fps | 98.3% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | 38.4 gr | 84% | 27,224 psi | 67% | 2146 fps | 95.1% |
| Accurate 2495 | <<locked>> | 94% | 26,716 psi | 66% | 2221 fps | 95.6% |
| Accurate LT-30 | <<locked>> | 80% | 33,112 psi | 82% | 2185 fps | 95.5% |
| ADI AR 2207 | <<locked>> | 80% | 33,997 psi | 84% | 2280 fps | 100% |
| ADI AR 2219 | <<locked>> | 84% | 34,214 psi | 84% | 2326 fps | 95.6% |
| Alliant AR-Comp | 37.9 gr | 82% | 23,786 psi | 59% | 2106 fps | 95.9% |
| Alliant Reloder-10x | <<locked>> | 80% | 27,920 psi | 69% | 2172 fps | 96.7% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 30,980 psi | 76% | 2165 fps | 95.1% |
| Hodgdon H322 | <<locked>> | 86% | 33,286 psi | 82% | 2306 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 22,829 psi | 56% | 1352 fps | 100% |
| IMR 3031 | 42.4 gr | 92% | 30,995 psi | 76% | 2310 fps | 95.4% |
| IMR 4198 | <<locked>> | 80% | 30,763 psi | 76% | 2188 fps | 98.4% |
| Norma 200 | <<locked>> | 80% | 31,546 psi | 78% | 2247 fps | 98.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 22,437 psi | 55% | 1381 fps | 100% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 30,850 psi | 76% | 2221 fps | 95.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 98% | 33,765 psi | 83% | 2251 fps | 95.4% |
| Somchem S335 | <<locked>> | 92% | 33,504 psi | 83% | 2260 fps | 95.3% |
| Vihtavuori N120 | <<locked>> | 80% | 34,214 psi | 84% | 2251 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 27,195 psi | 67% | 2103 fps | 96.1% |
| Vihtavuori N133 | <<locked>> | 86% | 28,543 psi | 70% | 2142 fps | 95.3% |
| Vihtavuori N135 | <<locked>> | 92% | 27,818 psi | 69% | 2205 fps | 95.4% |
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 21 powders for 9 x 57 Mauser loaded with the .358 | 200gr | Peregrine Bushmaster (VRG-3). IMR 3031 delivers the highest muzzle velocity at 2,408 fps; across all powders the maximum-charge window runs from 1,516 fps to 2,408 fps. Accurate 2495 gives the best case fill at 100 %, and 21 of the 21 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (280 MPa), the top charges use 76–90 %, leaving at least 10 % headroom. The 200.0 gr projectile in 0.358" calls for a 1:6.0 twist; slower twists will usually not stabilise this weight. Accurate 2495, 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. IMR 3031, Alliant AR-Comp, Accurate 2015 rank at the top here: for 9 x 57 Mauser with the .358 | 200gr | Peregrine Bushmaster (VRG-3) 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.