Load Specifications
Load data in caliber 9.3 x 74 R with .366 | 250gr | Fox Classic Hunter bullet and 69 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Hodgdon LEVERevolution and Bofors RP3.
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>> | 88% | 44,005 psi | 89% | 2326 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 42,134 psi | 85% | 2329 fps | 99.3% |
| Accurate 2495 | <<locked>> | 94% | 42,235 psi | 86% | 2362 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 42,728 psi | 87% | 2375 fps | 99.2% |
| Accurate 4064 | <<locked>> | 96% | 42,090 psi | 85% | 2385 fps | 99.7% |
| ADI AR 2206H | <<locked>> | 90% | 43,352 psi | 88% | 2379 fps | 96.7% |
| ADI AR 2208 | <<locked>> | 96% | 44,237 psi | 90% | 2372 fps | 96.1% |
| ADI AR 2219 | <<locked>> | 82% | 44,396 psi | 90% | 2379 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 88% | 43,149 psi | 88% | 2346 fps | 97.9% |
| Alliant AR-Comp | <<locked>> | 90% | 43,874 psi | 89% | 2392 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 43,337 psi | 88% | 2421 fps | 97.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 42,279 psi | 86% | 2385 fps | 97.5% |
| Alliant Reloder-10x | <<locked>> | 82% | 41,930 psi | 85% | 2300 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 43,482 psi | 88% | 2402 fps | 96.2% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 42,902 psi | 87% | 2457 fps | 96.7% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 44,338 psi | 90% | 2287 fps | 100% |
| Bofors RP3 | <<locked>> | 96% | 41,727 psi | 85% | 2388 fps | 97.5% |
| Hodgdon Benchmark | <<locked>> | 86% | 42,873 psi | 87% | 2300 fps | 98.3% |
| Hodgdon BL-C2 | <<locked>> | 90% | 43,453 psi | 88% | 2408 fps | 98.5% |
| Hodgdon H322 | <<locked>> | 84% | 43,366 psi | 88% | 2362 fps | 99.9% |
| Hodgdon H335 | <<locked>> | 84% | 43,947 psi | 89% | 2379 fps | 99.6% |
| Hodgdon H4895 | <<locked>> | 90% | 43,642 psi | 89% | 2388 fps | 97.4% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 44,309 psi | 90% | 2448 fps | 97.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,446 psi | 68% | 1470 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 42,322 psi | 86% | 2346 fps | 97% |
| IMR 3031 | <<locked>> | 92% | 44,599 psi | 90% | 2434 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 43,743 psi | 89% | 2356 fps | 96.2% |
| IMR 4198 | <<locked>> | 82% | 43,236 psi | 88% | 2277 fps | 100% |
| IMR 4895 | <<locked>> | 94% | 44,454 psi | 90% | 2431 fps | 97.1% |
| IMR 8208 XBR | <<locked>> | 88% | 43,149 psi | 88% | 2346 fps | 97.9% |
| Lovex D073.5 | <<locked>> | 84% | 41,858 psi | 85% | 2329 fps | 98.5% |
| Lovex D073.6 | <<locked>> | 92% | 43,830 psi | 89% | 2405 fps | 99.3% |
| Lovex S060 | <<locked>> | 88% | 42,061 psi | 85% | 2283 fps | 96.4% |
| Lovex S062 | <<locked>> | 94% | 42,670 psi | 87% | 2359 fps | 97.9% |
| Norma 201 | <<locked>> | 90% | 42,061 psi | 85% | 2333 fps | 97.8% |
| Norma 202 | <<locked>> | 90% | 42,221 psi | 86% | 2349 fps | 99.5% |
| Norma 203B | <<locked>> | 94% | 42,612 psi | 86% | 2388 fps | 96.6% |
| Ramshot Big Game | <<locked>> | 94% | 42,801 psi | 87% | 2405 fps | 96.2% |
| Ramshot Wild Boar | <<locked>> | 88% | 41,887 psi | 85% | 2362 fps | 96.3% |
| Ramshot X-Terminator | <<locked>> | 86% | 44,324 psi | 90% | 2346 fps | 96.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,576 psi | 68% | 1506 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 42,844 psi | 87% | 2339 fps | 98.9% |
| ReloadSwiss RS 52 | <<locked>> | 92% | 42,496 psi | 86% | 2441 fps | 95.9% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 42,830 psi | 87% | 2470 fps | 99% |
| Rottweil R 901 | <<locked>> | 88% | 43,265 psi | 88% | 2336 fps | 99.4% |
| Rottweil R 902 | <<locked>> | 92% | 42,395 psi | 86% | 2329 fps | 97.8% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 44,396 psi | 90% | 2425 fps | 97.7% |
| Shooters World Match Rifle | <<locked>> | 92% | 43,830 psi | 89% | 2405 fps | 99.3% |
| Shooters World Precision | <<locked>> | 94% | 42,670 psi | 87% | 2359 fps | 97.9% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 42,685 psi | 87% | 2303 fps | 97.4% |
| SNPE Vectan SP 11 | <<locked>> | 98% | 44,034 psi | 89% | 2431 fps | 96.7% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 42,772 psi | 87% | 2313 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 92% | 44,570 psi | 90% | 2395 fps | 96.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 42,163 psi | 86% | 2267 fps | 99.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 43,743 psi | 89% | 2306 fps | 99.9% |
| Somchem S321 | <<locked>> | 86% | 43,221 psi | 88% | 2372 fps | 98.2% |
| Somchem S335 | <<locked>> | 90% | 43,627 psi | 88% | 2310 fps | 99.9% |
| Somchem S341 | <<locked>> | 90% | 43,352 psi | 88% | 2365 fps | 96.5% |
| Somchem S355 | <<locked>> | 98% | 42,917 psi | 87% | 2385 fps | 97.2% |
| Vihtavuori N130 | <<locked>> | 84% | 42,380 psi | 86% | 2260 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 42,003 psi | 85% | 2270 fps | 100% |
| Vihtavuori N135 | <<locked>> | 94% | 43,468 psi | 88% | 2365 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 42,496 psi | 86% | 2333 fps | 99.7% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 44,150 psi | 90% | 2379 fps | 98.6% |
| Vihtavuori N530 | <<locked>> | 88% | 43,047 psi | 87% | 2343 fps | 97.9% |
| Vihtavuori N540 | <<locked>> | 94% | 43,656 psi | 89% | 2372 fps | 99.5% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 40,799 psi | 83% | 2313 fps | 96% |
| Winchester 748 | <<locked>> | 90% | 44,382 psi | 90% | 2425 fps | 98.9% |
| Winchester StaBALL Match | <<locked>> | 92% | 43,453 psi | 88% | 2395 fps | 97.4% |
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% | 34,243 psi | 69% | 2162 fps | 99.7% |
| Accurate 2460 | <<locked>> | 80% | 36,622 psi | 74% | 2234 fps | 98.4% |
| Accurate 2495 | <<locked>> | 80% | 26,223 psi | 53% | 2051 fps | 98.4% |
| Accurate 2520 | <<locked>> | 80% | 32,111 psi | 65% | 2178 fps | 96.8% |
| Accurate 4064 | <<locked>> | 80% | 24,903 psi | 51% | 2028 fps | 95.2% |
| ADI AR 2206H | <<locked>> | 86% | 38,087 psi | 77% | 2280 fps | 95.3% |
| ADI AR 2208 | <<locked>> | 94% | 41,684 psi | 85% | 2326 fps | 95.4% |
| ADI AR 2219 | <<locked>> | 80% | 41,423 psi | 84% | 2329 fps | 99.8% |
| ADI Benchmark 8208 | <<locked>> | 80% | 33,388 psi | 68% | 2162 fps | 95.1% |
| Alliant AR-Comp | <<locked>> | 80% | 31,517 psi | 64% | 2182 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 38,000 psi | 77% | 2323 fps | 96.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 34,940 psi | 71% | 2247 fps | 95.4% |
| Alliant Reloder-10x | <<locked>> | 80% | 39,378 psi | 80% | 2257 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 40,712 psi | 83% | 2352 fps | 95.4% |
| Alliant Reloder-17 | <<locked>> | 98% | 40,001 psi | 81% | 2402 fps | 95.8% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 41,684 psi | 85% | 2244 fps | 99.9% |
| Bofors RP3 | 53.2 gr | 90% | 33,910 psi | 69% | 2241 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 35,737 psi | 72% | 2172 fps | 96.6% |
| Hodgdon BL-C2 | <<locked>> | 82% | 32,895 psi | 67% | 2211 fps | 95.8% |
| Hodgdon H322 | <<locked>> | 80% | 38,029 psi | 77% | 2270 fps | 99.5% |
| Hodgdon H335 | <<locked>> | 80% | 38,305 psi | 78% | 2283 fps | 98.9% |
| Hodgdon H4895 | <<locked>> | 84% | 35,810 psi | 73% | 2244 fps | 95.2% |
| Hodgdon LEVERevolution | 52.6 gr | 86% | 34,258 psi | 69% | 2254 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,758 psi | 50% | 1312 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 37,347 psi | 76% | 2257 fps | 95.6% |
| IMR 3031 | <<locked>> | 80% | 29,994 psi | 61% | 2159 fps | 98.5% |
| IMR 4064 | <<locked>> | 92% | 40,930 psi | 83% | 2310 fps | 95.5% |
| IMR 4198 | <<locked>> | 80% | 40,814 psi | 83% | 2241 fps | 100% |
| IMR 4895 | <<locked>> | 90% | 39,175 psi | 79% | 2336 fps | 95.8% |
| IMR 8208 XBR | <<locked>> | 80% | 33,388 psi | 68% | 2162 fps | 95.1% |
| Lovex D073.5 | <<locked>> | 80% | 36,448 psi | 74% | 2231 fps | 97.3% |
| Lovex D073.6 | <<locked>> | 80% | 28,790 psi | 58% | 2113 fps | 95.5% |
| Lovex S060 | <<locked>> | 86% | 39,465 psi | 80% | 2238 fps | 95.6% |
| Lovex S062 | <<locked>> | 86% | 33,069 psi | 67% | 2175 fps | 95.2% |
| Norma 201 | <<locked>> | 82% | 32,634 psi | 66% | 2149 fps | 95% |
| Norma 202 | <<locked>> | 80% | 30,472 psi | 62% | 2123 fps | 97% |
| Norma 203B | <<locked>> | 90% | 37,550 psi | 76% | 2297 fps | 95.1% |
| Ramshot Big Game | <<locked>> | 92% | 39,929 psi | 81% | 2352 fps | 95.4% |
| Ramshot Wild Boar | <<locked>> | 86% | 39,262 psi | 80% | 2313 fps | 95.5% |
| Ramshot X-Terminator | <<locked>> | 82% | 38,856 psi | 79% | 2251 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,772 psi | 50% | 1342 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 37,521 psi | 76% | 2244 fps | 97.9% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 39,711 psi | 81% | 2392 fps | 95% |
| ReloadSwiss RS 60 | 55.2 gr | 90% | 32,982 psi | 67% | 2257 fps | 95.8% |
| Rottweil R 901 | <<locked>> | 80% | 34,011 psi | 69% | 2162 fps | 97.7% |
| Rottweil R 902 | <<locked>> | 84% | 33,083 psi | 67% | 2152 fps | 95.1% |
| Rottweil R 903 | <<locked>> | 94% | 36,260 psi | 74% | 2280 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 28,790 psi | 58% | 2113 fps | 95.5% |
| Shooters World Precision | <<locked>> | 86% | 33,069 psi | 67% | 2175 fps | 95.2% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 39,914 psi | 81% | 2257 fps | 96.7% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 38,740 psi | 79% | 2336 fps | 95.1% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 40,147 psi | 81% | 2270 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 39,204 psi | 80% | 2300 fps | 95.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 32,837 psi | 67% | 2096 fps | 97.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 26,484 psi | 54% | 1975 fps | 96.5% |
| Somchem S321 | <<locked>> | 80% | 35,317 psi | 72% | 2228 fps | 96.2% |
| Somchem S335 | <<locked>> | 80% | 32,039 psi | 65% | 2100 fps | 98.2% |
| Somchem S341 | <<locked>> | 88% | 40,408 psi | 82% | 2313 fps | 95.7% |
| Somchem S355 | <<locked>> | 92% | 35,549 psi | 72% | 2247 fps | 95% |
| Vihtavuori N130 | <<locked>> | 80% | 37,478 psi | 76% | 2182 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 32,764 psi | 66% | 2110 fps | 99.4% |
| Vihtavuori N135 | <<locked>> | 80% | 27,586 psi | 56% | 2070 fps | 98.7% |
| Vihtavuori N140 | <<locked>> | 80% | 28,863 psi | 59% | 2070 fps | 96.7% |
| Vihtavuori N150 | <<locked>> | 90% | 31,749 psi | 64% | 2152 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 80% | 33,011 psi | 67% | 2152 fps | 95.1% |
| Vihtavuori N540 | <<locked>> | 80% | 27,557 psi | 56% | 2054 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 38,087 psi | 77% | 2264 fps | 95.1% |
| Winchester 748 | <<locked>> | 80% | 31,749 psi | 64% | 2182 fps | 95.6% |
| Winchester StaBALL Match | <<locked>> | 86% | 35,520 psi | 72% | 2251 fps | 95.1% |
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 69 powders for 9.3 x 74 R loaded with the .366 | 250gr | Fox Classic Hunter. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,470 fps; across all powders the maximum-charge window runs from 1,470 fps to 2,470 fps. Alliant Reloder-17 gives the best case fill at 100 %, and 69 of the 69 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (340 MPa), the top charges use 68–90 %, leaving at least 10 % headroom. The 250.0 gr projectile in 0.366" calls for a 1:14.5 twist; slower twists will usually not stabilise this weight. 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. ReloadSwiss RS 60, Hodgdon LEVERevolution, Bofors RP3 rank at the top here: for 9.3 x 74 R with the .366 | 250gr | Fox Classic Hunter 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.