Load Specifications
Load data in caliber 9.3 x 74 R with .366 | 286gr | Norma PlastSpitz 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, Alliant Reloder-17 and Alliant Reloder-16.
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 2495 | <<locked>> | 86% | 42,453 psi | 86% | 2211 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 44,208 psi | 90% | 2257 fps | 100% |
| Accurate 4064 | <<locked>> | 88% | 42,714 psi | 87% | 2247 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 43,439 psi | 88% | 2323 fps | 97.7% |
| ADI AR 2206H | <<locked>> | 84% | 44,106 psi | 89% | 2260 fps | 98.7% |
| ADI AR 2208 | <<locked>> | 88% | 42,409 psi | 86% | 2218 fps | 97.8% |
| ADI Benchmark 8208 | <<locked>> | 82% | 43,671 psi | 89% | 2228 fps | 99.4% |
| Alliant AR-Comp | <<locked>> | 82% | 42,989 psi | 87% | 2221 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 42,772 psi | 87% | 2336 fps | 97.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 44,309 psi | 90% | 2283 fps | 99.4% |
| Alliant Reloder-15 | <<locked>> | 86% | 42,206 psi | 86% | 2251 fps | 98% |
| Alliant Reloder-16 | <<locked>> | 98% | 43,700 psi | 89% | 2333 fps | 97.8% |
| Alliant Reloder-17 | <<locked>> | 94% | 43,932 psi | 89% | 2365 fps | 99.2% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 43,265 psi | 88% | 2267 fps | 97.7% |
| Bofors RP3 | <<locked>> | 90% | 43,932 psi | 89% | 2287 fps | 99.4% |
| Hodgdon BL-C2 | <<locked>> | 82% | 41,713 psi | 85% | 2244 fps | 99.5% |
| Hodgdon H380 | <<locked>> | 88% | 42,583 psi | 86% | 2251 fps | 96.8% |
| Hodgdon H4895 | <<locked>> | 84% | 44,454 psi | 90% | 2270 fps | 99.2% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 42,540 psi | 86% | 2277 fps | 98.8% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 42,772 psi | 87% | 2293 fps | 99.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,954 psi | 71% | 1414 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 42,946 psi | 87% | 2234 fps | 98.9% |
| IMR 3031 | <<locked>> | 84% | 43,758 psi | 89% | 2267 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 44,527 psi | 90% | 2247 fps | 98.5% |
| IMR 4831 | <<locked>> | 98% | 41,713 psi | 85% | 2280 fps | 97.3% |
| IMR 4895 | <<locked>> | 86% | 43,221 psi | 88% | 2277 fps | 98.7% |
| IMR 8208 XBR | <<locked>> | 82% | 43,671 psi | 89% | 2228 fps | 99.4% |
| Lovex D073.6 | <<locked>> | 84% | 42,627 psi | 86% | 2244 fps | 99.9% |
| Lovex S060 | <<locked>> | 82% | 42,206 psi | 86% | 2169 fps | 98.4% |
| Lovex S062 | <<locked>> | 88% | 44,309 psi | 90% | 2251 fps | 99.6% |
| Lovex S065 | <<locked>> | 94% | 43,250 psi | 88% | 2238 fps | 96% |
| Norma 201 | <<locked>> | 84% | 43,308 psi | 88% | 2221 fps | 99.4% |
| Norma 202 | <<locked>> | 84% | 43,468 psi | 88% | 2231 fps | 100% |
| Norma 203B | <<locked>> | 88% | 44,295 psi | 90% | 2287 fps | 98.8% |
| Norma URP | <<locked>> | 98% | 43,830 psi | 89% | 2323 fps | 97.6% |
| Ramshot Big Game | <<locked>> | 88% | 43,932 psi | 89% | 2303 fps | 98.6% |
| Ramshot TAC | <<locked>> | 82% | 43,526 psi | 88% | 2228 fps | 96.3% |
| Ramshot Wild Boar | <<locked>> | 82% | 42,641 psi | 86% | 2247 fps | 98.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,288 psi | 72% | 1447 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 44,135 psi | 90% | 2343 fps | 98.4% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 43,947 psi | 89% | 2372 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 43,337 psi | 88% | 2343 fps | 97.3% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 44,266 psi | 90% | 2356 fps | 96.6% |
| Rottweil R 902 | <<locked>> | 86% | 43,801 psi | 89% | 2224 fps | 99.5% |
| Rottweil R 903 | <<locked>> | 92% | 43,845 psi | 89% | 2280 fps | 99.2% |
| Shooters World Long Rifle | <<locked>> | 94% | 43,250 psi | 88% | 2238 fps | 96% |
| Shooters World Match Rifle | <<locked>> | 84% | 42,627 psi | 86% | 2244 fps | 99.9% |
| Shooters World Precision | <<locked>> | 88% | 44,309 psi | 90% | 2251 fps | 99.6% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 42,656 psi | 87% | 2287 fps | 98.5% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 44,440 psi | 90% | 2251 fps | 97.1% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 42,699 psi | 87% | 2238 fps | 98.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 42,496 psi | 86% | 2146 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 44,585 psi | 90% | 2185 fps | 100% |
| Somchem S335 | <<locked>> | 84% | 44,469 psi | 90% | 2188 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 44,164 psi | 90% | 2254 fps | 98.7% |
| Somchem S355 | <<locked>> | 90% | 42,221 psi | 86% | 2241 fps | 98.8% |
| Somchem S365ᴾ | <<locked>> | 100% | 41,408 psi | 84% | 2323 fps | 99.6% |
| Vihtavuori N133 | <<locked>> | 82% | 42,612 psi | 86% | 2142 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 42,859 psi | 87% | 2208 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 43,729 psi | 89% | 2218 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 42,902 psi | 87% | 2228 fps | 99.6% |
| Vihtavuori N160 | <<locked>> | 96% | 43,308 psi | 88% | 2280 fps | 97.3% |
| Vihtavuori N530 | <<locked>> | 82% | 43,555 psi | 88% | 2221 fps | 99.5% |
| Vihtavuori N540 | <<locked>> | 86% | 42,177 psi | 86% | 2211 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 42,279 psi | 86% | 2283 fps | 97% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 34,737 psi | 70% | 2211 fps | 96% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 44,034 psi | 89% | 2267 fps | 99.1% |
| Winchester 748 | <<locked>> | 82% | 42,656 psi | 87% | 2260 fps | 99.8% |
| Winchester StaBALL Match | <<locked>> | 84% | 41,800 psi | 85% | 2241 fps | 98.8% |
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 2495 | <<locked>> | 80% | 34,940 psi | 71% | 2090 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 41,394 psi | 84% | 2215 fps | 99.9% |
| Accurate 4064 | <<locked>> | 80% | 33,025 psi | 67% | 2080 fps | 99.5% |
| Accurate 4350 | <<locked>> | 92% | 35,476 psi | 72% | 2185 fps | 95.5% |
| ADI AR 2206H | <<locked>> | 80% | 38,928 psi | 79% | 2172 fps | 97.7% |
| ADI AR 2208 | <<locked>> | 80% | 33,344 psi | 68% | 2051 fps | 95.2% |
| ADI Benchmark 8208 | <<locked>> | 80% | 40,959 psi | 83% | 2185 fps | 99.1% |
| Alliant AR-Comp | <<locked>> | 80% | 40,219 psi | 82% | 2182 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 35,070 psi | 71% | 2178 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 32,343 psi | 66% | 2064 fps | 96.8% |
| Alliant Reloder-15 | <<locked>> | 80% | 34,853 psi | 71% | 2113 fps | 96% |
| Alliant Reloder-16 | 56.3 gr | 92% | 36,651 psi | 74% | 2198 fps | 95.7% |
| Alliant Reloder-17 | 55.3 gr | 84% | 31,763 psi | 64% | 2119 fps | 95.7% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 37,884 psi | 77% | 2175 fps | 96.3% |
| Bofors RP3 | <<locked>> | 80% | 31,647 psi | 64% | 2064 fps | 96.7% |
| Hodgdon BL-C2 | <<locked>> | 80% | 39,059 psi | 79% | 2198 fps | 99.2% |
| Hodgdon H380 | <<locked>> | 84% | 37,318 psi | 76% | 2156 fps | 95.3% |
| Hodgdon H4895 | <<locked>> | 80% | 39,233 psi | 80% | 2182 fps | 98.3% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 31,401 psi | 64% | 2064 fps | 95.7% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 35,186 psi | 71% | 2156 fps | 97.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,860 psi | 52% | 1260 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 37,869 psi | 77% | 2146 fps | 97.9% |
| IMR 3031 | <<locked>> | 80% | 38,276 psi | 78% | 2185 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 34,940 psi | 71% | 2077 fps | 96.1% |
| IMR 4831 | <<locked>> | 92% | 34,534 psi | 70% | 2149 fps | 95.2% |
| IMR 4895 | <<locked>> | 80% | 35,650 psi | 72% | 2139 fps | 97% |
| IMR 8208 XBR | <<locked>> | 80% | 40,959 psi | 83% | 2185 fps | 99.1% |
| Lovex D073.6 | <<locked>> | 80% | 37,463 psi | 76% | 2159 fps | 99.6% |
| Lovex S060 | <<locked>> | 80% | 39,784 psi | 81% | 2126 fps | 97.9% |
| Lovex S062 | <<locked>> | 80% | 34,650 psi | 70% | 2083 fps | 97.9% |
| Lovex S065 | <<locked>> | 92% | 40,814 psi | 83% | 2195 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 38,189 psi | 77% | 2136 fps | 98.7% |
| Norma 202 | <<locked>> | 80% | 38,290 psi | 78% | 2149 fps | 99.9% |
| Norma 203B | <<locked>> | 80% | 34,243 psi | 69% | 2106 fps | 96.5% |
| Norma URP | <<locked>> | 92% | 36,172 psi | 73% | 2185 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 80% | 33,663 psi | 68% | 2113 fps | 95.9% |
| Ramshot TAC | <<locked>> | 80% | 40,886 psi | 83% | 2185 fps | 95.6% |
| Ramshot Wild Boar | <<locked>> | 80% | 40,001 psi | 81% | 2201 fps | 97.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,252 psi | 53% | 1293 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 35,984 psi | 73% | 2195 fps | 96.4% |
| ReloadSwiss RS 60 | 52.7 gr | 80% | 29,805 psi | 60% | 2080 fps | 97.4% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 37,855 psi | 77% | 2244 fps | 95.7% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 41,524 psi | 84% | 2306 fps | 95.8% |
| Rottweil R 902 | <<locked>> | 80% | 36,376 psi | 74% | 2096 fps | 98.3% |
| Rottweil R 903 | <<locked>> | 80% | 29,805 psi | 60% | 2018 fps | 95.7% |
| Shooters World Long Rifle | <<locked>> | 92% | 40,814 psi | 83% | 2195 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 37,463 psi | 76% | 2159 fps | 99.6% |
| Shooters World Precision | <<locked>> | 80% | 34,650 psi | 70% | 2083 fps | 97.9% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 33,025 psi | 67% | 2103 fps | 95.8% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 38,812 psi | 79% | 2156 fps | 95.6% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 37,550 psi | 76% | 2149 fps | 97.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 39,929 psi | 81% | 2106 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 32,808 psi | 67% | 1995 fps | 99.7% |
| Somchem S335 | <<locked>> | 80% | 39,320 psi | 80% | 2110 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 38,566 psi | 78% | 2159 fps | 97.5% |
| Somchem S355 | <<locked>> | 80% | 30,835 psi | 63% | 2024 fps | 95.8% |
| Somchem S365 | <<locked>> | 86% | 26,876 psi | 55% | 2005 fps | 95.1% |
| Vihtavuori N133 | <<locked>> | 80% | 40,059 psi | 81% | 2103 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 35,418 psi | 72% | 2090 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 36,260 psi | 74% | 2096 fps | 99.8% |
| Vihtavuori N150 | <<locked>> | 80% | 29,283 psi | 59% | 1975 fps | 96.7% |
| Vihtavuori N160 | <<locked>> | 90% | 35,737 psi | 72% | 2142 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 80% | 40,930 psi | 83% | 2182 fps | 99.1% |
| Vihtavuori N540 | <<locked>> | 80% | 34,751 psi | 70% | 2083 fps | 99.4% |
| Vihtavuori N550 | <<locked>> | 92% | 37,159 psi | 75% | 2192 fps | 95.5% |
| Vihtavuori N555 | <<locked>> | 98% | 32,547 psi | 66% | 2165 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 31,850 psi | 65% | 2041 fps | 95.8% |
| Winchester 748 | <<locked>> | 80% | 39,943 psi | 81% | 2218 fps | 99.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 36,695 psi | 74% | 2149 fps | 97.8% |
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 | 286gr | Norma PlastSpitz. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,372 fps; across all powders the maximum-charge window runs from 1,414 fps to 2,372 fps. Hodgdon Hybrid 100V 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 70–90 %, leaving at least 10 % headroom. The 286.0 gr projectile in 0.366" calls for a 1:6.0 twist; slower twists will usually not stabilise this weight. Hodgdon Hybrid 100V, 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, Alliant Reloder-17, Alliant Reloder-16 rank at the top here: for 9.3 x 74 R with the .366 | 286gr | Norma PlastSpitz 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.