Load Specifications
Load data in caliber 9.3 x 57 with .366 | 232gr | Norma VULKAN bullet and 30 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are IMR 3031, Accurate 4064 and Accurate 2520.
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>> | 86% | 37,347 psi | 86% | 2270 fps | 99.5% |
| Accurate 2460 | <<locked>> | 84% | 37,652 psi | 87% | 2297 fps | 97.4% |
| Accurate 2495 | <<locked>> | 94% | 37,231 psi | 86% | 2336 fps | 99.7% |
| Accurate 2520 | <<locked>> | 88% | 37,855 psi | 87% | 2339 fps | 97.1% |
| Accurate 4064 | <<locked>> | 96% | 37,202 psi | 86% | 2356 fps | 98.1% |
| Alliant AR-Comp | <<locked>> | 90% | 38,885 psi | 89% | 2375 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 82% | 37,869 psi | 87% | 2287 fps | 99.9% |
| Hodgdon Benchmark | <<locked>> | 86% | 39,189 psi | 90% | 2277 fps | 96% |
| Hodgdon BL-C2 | <<locked>> | 90% | 38,334 psi | 88% | 2365 fps | 95.9% |
| Hodgdon H322 | <<locked>> | 84% | 38,914 psi | 89% | 2336 fps | 98.8% |
| Hodgdon H335 | <<locked>> | 84% | 39,349 psi | 90% | 2352 fps | 98% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,895 psi | 76% | 1490 fps | 100% |
| IMR 3031 | <<locked>> | 90% | 37,159 psi | 85% | 2362 fps | 99.1% |
| Lovex D073.5 | <<locked>> | 84% | 37,608 psi | 86% | 2297 fps | 96% |
| Lovex D073.6 | <<locked>> | 92% | 38,566 psi | 89% | 2365 fps | 97.3% |
| Norma 202 | <<locked>> | 90% | 37,695 psi | 87% | 2320 fps | 97.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,996 psi | 76% | 1526 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 38,812 psi | 89% | 2313 fps | 96.8% |
| Rottweil R 901 | <<locked>> | 86% | 37,188 psi | 85% | 2270 fps | 97.3% |
| Shooters World Match Rifle | <<locked>> | 92% | 38,566 psi | 89% | 2365 fps | 97.3% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 38,435 psi | 88% | 2293 fps | 99.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 38,203 psi | 88% | 2244 fps | 97.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 36,883 psi | 85% | 2241 fps | 98.3% |
| Somchem S335 | <<locked>> | 88% | 37,246 psi | 86% | 2247 fps | 98.2% |
| Vihtavuori N130 | <<locked>> | 84% | 38,595 psi | 89% | 2251 fps | 99.9% |
| Vihtavuori N133 | <<locked>> | 88% | 37,811 psi | 87% | 2254 fps | 99.5% |
| Vihtavuori N135 | <<locked>> | 94% | 38,319 psi | 88% | 2343 fps | 99.7% |
| Vihtavuori N140 | <<locked>> | 92% | 38,058 psi | 87% | 2306 fps | 98.1% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 39,030 psi | 90% | 2333 fps | 95.9% |
| Vihtavuori N540 | <<locked>> | 94% | 38,856 psi | 89% | 2336 fps | 97.7% |
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 | <<locked>> | 80% | 31,038 psi | 71% | 2142 fps | 98.3% |
| Accurate 2460 | <<locked>> | 80% | 33,156 psi | 76% | 2208 fps | 96.1% |
| Accurate 2495 | <<locked>> | 80% | 23,482 psi | 54% | 2024 fps | 95.9% |
| Accurate 2520 | 48.4 gr | 84% | 32,793 psi | 75% | 2238 fps | 95.5% |
| Accurate 4064 | 47.1 gr | 88% | 28,834 psi | 66% | 2175 fps | 95.4% |
| Alliant AR-Comp | <<locked>> | 80% | 28,282 psi | 65% | 2152 fps | 99.5% |
| Alliant Reloder-10x | <<locked>> | 80% | 35,679 psi | 82% | 2247 fps | 99.8% |
| Hodgdon Benchmark | <<locked>> | 84% | 37,086 psi | 85% | 2238 fps | 95.4% |
| Hodgdon BL-C2 | <<locked>> | 88% | 36,013 psi | 83% | 2320 fps | 95.2% |
| Hodgdon H322 | <<locked>> | 80% | 34,142 psi | 78% | 2241 fps | 97.7% |
| Hodgdon H335 | <<locked>> | 80% | 34,490 psi | 79% | 2254 fps | 96.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,250 psi | 56% | 1325 fps | 100% |
| IMR 3031 | 42.3 gr | 80% | 27,151 psi | 62% | 2126 fps | 95.9% |
| Lovex D073.5 | <<locked>> | 82% | 35,070 psi | 81% | 2247 fps | 95.2% |
| Lovex D073.6 | <<locked>> | 88% | 33,605 psi | 77% | 2267 fps | 95.7% |
| Norma 202 | <<locked>> | 84% | 31,256 psi | 72% | 2185 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,279 psi | 56% | 1358 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 33,997 psi | 78% | 2218 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 31,198 psi | 72% | 2142 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 88% | 33,605 psi | 77% | 2267 fps | 95.7% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 36,216 psi | 83% | 2251 fps | 98.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 29,994 psi | 69% | 2073 fps | 95% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 27,441 psi | 63% | 2034 fps | 95.1% |
| Somchem S335 | <<locked>> | 80% | 29,196 psi | 67% | 2077 fps | 95.8% |
| Vihtavuori N130 | <<locked>> | 80% | 34,142 psi | 78% | 2169 fps | 99.4% |
| Vihtavuori N133 | <<locked>> | 80% | 29,704 psi | 68% | 2087 fps | 97.7% |
| Vihtavuori N135 | <<locked>> | 80% | 24,860 psi | 57% | 2041 fps | 96.2% |
| Vihtavuori N140 | <<locked>> | 84% | 29,733 psi | 68% | 2129 fps | 95.4% |
| Vihtavuori N150 | <<locked>> | 98% | 36,622 psi | 84% | 2290 fps | 95.2% |
| Vihtavuori N540 | <<locked>> | 86% | 30,313 psi | 70% | 2159 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 68 powders for 9.3 x 57 loaded with the .366 | 232gr | Norma VULKAN. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,405 fps; across all powders the maximum-charge window runs from 1,490 fps to 2,405 fps. Alliant Reloder-17 gives the best case fill at 100 %, and 68 of the 68 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (300 MPa), the top charges use 76–90 %, leaving at least 10 % headroom. Alliant Reloder-17, 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, Accurate 4064, Accurate 2520 rank at the top here: for 9.3 x 57 with the .366 | 232gr | Norma VULKAN they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2206H, ADI AR 2208, 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.