Load Specifications
Load data in caliber 9.3 x 74 R with .366 | 250gr | Woodleigh PP SN bullet and 65 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, ReloadSwiss RS 52 and Alliant Reloder-17.
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>> | 82% | 42,206 psi | 86% | 2329 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 44,295 psi | 90% | 2418 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 43,642 psi | 89% | 2425 fps | 99.7% |
| Accurate 4064 | <<locked>> | 92% | 44,280 psi | 90% | 2451 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 42,366 psi | 86% | 2477 fps | 96% |
| ADI AR 2206H | <<locked>> | 86% | 43,787 psi | 89% | 2425 fps | 97.6% |
| ADI AR 2208 | <<locked>> | 90% | 42,061 psi | 85% | 2379 fps | 96.5% |
| ADI Benchmark 8208 | <<locked>> | 84% | 43,352 psi | 88% | 2392 fps | 98.6% |
| Alliant AR-Comp | <<locked>> | 84% | 42,148 psi | 85% | 2392 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 42,554 psi | 86% | 2493 fps | 96.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 43,511 psi | 88% | 2441 fps | 98.4% |
| Alliant Reloder-15 | <<locked>> | 90% | 44,266 psi | 90% | 2454 fps | 97.2% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 43,308 psi | 88% | 2484 fps | 96.1% |
| Alliant Reloder-17 | <<locked>> | 96% | 43,424 psi | 88% | 2520 fps | 97.9% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 42,815 psi | 87% | 2428 fps | 96.2% |
| Bofors RP3 | <<locked>> | 92% | 43,192 psi | 88% | 2448 fps | 98.5% |
| Hodgdon Benchmark | <<locked>> | 82% | 43,018 psi | 87% | 2346 fps | 98.9% |
| Hodgdon BL-C2 | <<locked>> | 86% | 44,280 psi | 90% | 2457 fps | 99.2% |
| Hodgdon CFE223 | <<locked>> | 82% | 42,409 psi | 86% | 2474 fps | 96.8% |
| Hodgdon H4895 | <<locked>> | 86% | 44,077 psi | 89% | 2438 fps | 98.2% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 39,291 psi | 80% | 2379 fps | 96.8% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 42,293 psi | 86% | 2454 fps | 98.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,360 psi | 70% | 1522 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 42,540 psi | 86% | 2395 fps | 97.8% |
| IMR 3031 | <<locked>> | 86% | 42,830 psi | 87% | 2438 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 44,193 psi | 90% | 2408 fps | 97.2% |
| IMR 4895 | <<locked>> | 88% | 42,554 psi | 86% | 2438 fps | 97.5% |
| IMR 8208 XBR | <<locked>> | 84% | 43,352 psi | 88% | 2392 fps | 98.6% |
| Lovex D073.6 | <<locked>> | 86% | 42,003 psi | 85% | 2408 fps | 99.5% |
| Lovex S060 | <<locked>> | 84% | 42,003 psi | 85% | 2326 fps | 97.2% |
| Lovex S062 | <<locked>> | 90% | 43,555 psi | 88% | 2411 fps | 98.7% |
| Norma 201 | <<locked>> | 86% | 42,888 psi | 87% | 2385 fps | 98.6% |
| Norma 202 | <<locked>> | 86% | 42,975 psi | 87% | 2398 fps | 99.8% |
| Norma 203B | <<locked>> | 90% | 43,526 psi | 88% | 2444 fps | 97.6% |
| Norma URPᴾ | <<locked>> | 100% | 42,888 psi | 87% | 2470 fps | 95.9% |
| Ramshot Big Game | <<locked>> | 90% | 43,395 psi | 88% | 2461 fps | 97.3% |
| Ramshot Wild Boar | <<locked>> | 84% | 42,409 psi | 86% | 2411 fps | 97.3% |
| Ramshot X-Terminator | <<locked>> | 82% | 44,222 psi | 90% | 2388 fps | 97.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,577 psi | 70% | 1558 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 43,308 psi | 88% | 2500 fps | 97% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 43,366 psi | 88% | 2533 fps | 99.7% |
| Rottweil R 901 | <<locked>> | 84% | 44,353 psi | 90% | 2388 fps | 99.8% |
| Rottweil R 902 | <<locked>> | 88% | 43,366 psi | 88% | 2385 fps | 98.6% |
| Rottweil R 903 | <<locked>> | 94% | 43,091 psi | 87% | 2438 fps | 98.2% |
| Shooters World Match Rifle | <<locked>> | 86% | 42,003 psi | 85% | 2408 fps | 99.5% |
| Shooters World Precision | <<locked>> | 90% | 43,555 psi | 88% | 2411 fps | 98.7% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 42,032 psi | 85% | 2444 fps | 97.1% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 42,177 psi | 86% | 2395 fps | 97.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 42,250 psi | 86% | 2310 fps | 99.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 44,367 psi | 90% | 2352 fps | 100% |
| Somchem S321 | <<locked>> | 82% | 43,671 psi | 89% | 2418 fps | 98.9% |
| Somchem S335 | <<locked>> | 86% | 44,179 psi | 90% | 2356 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 43,714 psi | 89% | 2415 fps | 97.5% |
| Somchem S355 | <<locked>> | 94% | 44,135 psi | 90% | 2444 fps | 98.2% |
| Somchem S365ᴾ | <<locked>> | 100% | 38,159 psi | 77% | 2425 fps | 98% |
| Vihtavuori N133 | <<locked>> | 84% | 42,264 psi | 86% | 2310 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 42,061 psi | 85% | 2375 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 43,294 psi | 88% | 2382 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 94% | 42,380 psi | 86% | 2388 fps | 98.9% |
| Vihtavuori N530 | <<locked>> | 84% | 43,410 psi | 88% | 2388 fps | 98.7% |
| Vihtavuori N540 | <<locked>> | 90% | 44,411 psi | 90% | 2418 fps | 99.9% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 44,280 psi | 90% | 2480 fps | 96% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 43,685 psi | 89% | 2418 fps | 97.9% |
| Winchester 748 | <<locked>> | 84% | 42,163 psi | 86% | 2428 fps | 99.1% |
| Winchester StaBALL Match | <<locked>> | 88% | 44,121 psi | 89% | 2448 fps | 98.2% |
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% | 39,552 psi | 80% | 2287 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 32,097 psi | 65% | 2201 fps | 99.9% |
| Accurate 2520 | <<locked>> | 80% | 38,014 psi | 77% | 2326 fps | 98.9% |
| Accurate 4064 | <<locked>> | 80% | 30,385 psi | 62% | 2182 fps | 98.1% |
| Accurate 4350 | <<locked>> | 98% | 39,523 psi | 80% | 2425 fps | 95.2% |
| ADI AR 2206H | <<locked>> | 80% | 36,303 psi | 74% | 2280 fps | 95.6% |
| ADI AR 2208 | <<locked>> | 86% | 37,318 psi | 76% | 2287 fps | 95% |
| ADI Benchmark 8208 | <<locked>> | 80% | 38,247 psi | 78% | 2300 fps | 97.5% |
| Alliant AR-Comp | <<locked>> | 80% | 36,927 psi | 75% | 2310 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 39,827 psi | 81% | 2438 fps | 95.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 31,691 psi | 64% | 2205 fps | 95% |
| Alliant Reloder-15 | <<locked>> | 84% | 36,666 psi | 74% | 2310 fps | 95.1% |
| Alliant Reloder-16 | <<locked>> | 98% | 40,712 psi | 83% | 2434 fps | 95.3% |
| Alliant Reloder-17 | 61.7 gr | 90% | 35,752 psi | 73% | 2359 fps | 95.5% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 40,103 psi | 81% | 2375 fps | 95.4% |
| Bofors RP3 | <<locked>> | 84% | 33,127 psi | 67% | 2254 fps | 95.8% |
| Hodgdon Benchmark | <<locked>> | 80% | 40,437 psi | 82% | 2300 fps | 98.5% |
| Hodgdon BL-C2 | <<locked>> | 80% | 36,071 psi | 73% | 2306 fps | 97.6% |
| Hodgdon CFE223 | <<locked>> | 80% | 39,610 psi | 80% | 2418 fps | 96% |
| Hodgdon H4895 | <<locked>> | 80% | 36,535 psi | 74% | 2293 fps | 96.3% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 34,853 psi | 71% | 2287 fps | 95.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 32,547 psi | 66% | 2251 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,512 psi | 52% | 1358 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 35,201 psi | 71% | 2251 fps | 95.8% |
| IMR 3031 | <<locked>> | 80% | 35,143 psi | 71% | 2300 fps | 99.8% |
| IMR 4064 | <<locked>> | 84% | 36,753 psi | 75% | 2270 fps | 95.2% |
| IMR 4895 | <<locked>> | 82% | 35,201 psi | 71% | 2290 fps | 95.3% |
| IMR 8208 XBR | <<locked>> | 80% | 38,247 psi | 78% | 2300 fps | 97.5% |
| Lovex D073.6 | <<locked>> | 80% | 34,374 psi | 70% | 2264 fps | 98.2% |
| Lovex S060 | <<locked>> | 80% | 37,347 psi | 76% | 2238 fps | 95.9% |
| Lovex S062 | <<locked>> | 80% | 32,111 psi | 65% | 2182 fps | 95.7% |
| Norma 201 | <<locked>> | 80% | 35,723 psi | 72% | 2247 fps | 96.9% |
| Norma 202 | <<locked>> | 80% | 35,476 psi | 72% | 2260 fps | 98.9% |
| Norma 203B | <<locked>> | 84% | 35,998 psi | 73% | 2300 fps | 95.5% |
| Norma URP | <<locked>> | 98% | 40,437 psi | 82% | 2428 fps | 95.1% |
| Ramshot Big Game | <<locked>> | 86% | 38,043 psi | 77% | 2359 fps | 95.8% |
| Ramshot Wild Boar | <<locked>> | 80% | 37,086 psi | 75% | 2310 fps | 95.7% |
| Ramshot X-Terminator | <<locked>> | 80% | 41,437 psi | 84% | 2339 fps | 96.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,788 psi | 52% | 1394 fps | 100% |
| ReloadSwiss RS 52 | 56.7 gr | 84% | 37,855 psi | 77% | 2395 fps | 95.4% |
| ReloadSwiss RS 60 | 56.2 gr | 82% | 29,472 psi | 60% | 2211 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 39,334 psi | 80% | 2300 fps | 99.3% |
| Rottweil R 902 | <<locked>> | 80% | 33,881 psi | 69% | 2201 fps | 96.3% |
| Rottweil R 903 | <<locked>> | 86% | 33,156 psi | 67% | 2247 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 34,374 psi | 70% | 2264 fps | 98.2% |
| Shooters World Precision | <<locked>> | 80% | 32,111 psi | 65% | 2182 fps | 95.7% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 37,014 psi | 75% | 2343 fps | 95.6% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 34,824 psi | 71% | 2251 fps | 95% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 37,260 psi | 76% | 2221 fps | 99.1% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 30,472 psi | 62% | 2100 fps | 98.5% |
| Somchem S321 | <<locked>> | 80% | 40,857 psi | 83% | 2369 fps | 98.4% |
| Somchem S335 | <<locked>> | 80% | 36,883 psi | 75% | 2228 fps | 99.6% |
| Somchem S341 | <<locked>> | 80% | 35,723 psi | 72% | 2264 fps | 95.2% |
| Somchem S355 | <<locked>> | 86% | 34,447 psi | 70% | 2257 fps | 95.6% |
| Somchem S365 | <<locked>> | 94% | 31,705 psi | 64% | 2274 fps | 95.6% |
| Vihtavuori N133 | <<locked>> | 80% | 37,304 psi | 76% | 2224 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 32,518 psi | 66% | 2201 fps | 99.9% |
| Vihtavuori N140 | <<locked>> | 80% | 33,533 psi | 68% | 2205 fps | 98.8% |
| Vihtavuori N150 | <<locked>> | 84% | 30,676 psi | 62% | 2156 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 80% | 38,159 psi | 77% | 2293 fps | 97.6% |
| Vihtavuori N540 | <<locked>> | 80% | 32,198 psi | 65% | 2188 fps | 98% |
| Vihtavuori N550 | <<locked>> | 98% | 41,365 psi | 84% | 2428 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 35,984 psi | 73% | 2274 fps | 95.6% |
| Winchester 748 | <<locked>> | 80% | 36,753 psi | 75% | 2323 fps | 98% |
| Winchester StaBALL Match | <<locked>> | 80% | 33,808 psi | 69% | 2251 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 65 powders for 9.3 x 74 R loaded with the .366 | 250gr | Woodleigh PP SN. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,533 fps; across all powders the maximum-charge window runs from 1,522 fps to 2,533 fps. Accurate 4350 gives the best case fill at 100 %, and 65 of the 65 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (340 MPa), the top charges use 70–90 %, leaving at least 10 % headroom. The 250.0 gr projectile in 0.366" calls for a 1:6.0 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Hodgdon Hybrid 100V 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, ReloadSwiss RS 52, Alliant Reloder-17 rank at the top here: for 9.3 x 74 R with the .366 | 250gr | Woodleigh PP SN 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.