Load Specifications
Load data in caliber 9.3 RSM with .366 | 286gr | North Fork Cup Point Solid bullet and 100 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 2000-MR, ReloadSwiss RS 52 and Hodgdon CFE223.
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.
A valid access license is required to use the Personalized Load Calculator.
You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 92% | 55,013 psi | 86% | 2326 fps | 100% |
| Accurate 2200 | <<locked>> | 84% | 55,753 psi | 87% | 2411 fps | 99.2% |
| Accurate 2230 | <<locked>> | 84% | 56,608 psi | 89% | 2421 fps | 99.4% |
| Accurate 2460 | <<locked>> | 90% | 57,261 psi | 90% | 2395 fps | 100% |
| Accurate 2495 | <<locked>> | 98% | 54,882 psi | 86% | 2379 fps | 100% |
| Accurate 2520 | <<locked>> | 94% | 56,159 psi | 88% | 2428 fps | 100% |
| Accurate 4064ᴾ | <<locked>> | 100% | 54,215 psi | 85% | 2411 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 39,943 psi | 63% | 2277 fps | 96.1% |
| Accurate LT-30 | <<locked>> | 86% | 55,854 psi | 88% | 2283 fps | 100% |
| Accurate LT-32 | <<locked>> | 86% | 56,275 psi | 88% | 2303 fps | 100% |
| ADI AR 2206H | <<locked>> | 96% | 57,159 psi | 90% | 2444 fps | 99.7% |
| ADI AR 2207 | <<locked>> | 84% | 57,217 psi | 90% | 2297 fps | 100% |
| ADI AR 2208ᴾ | <<locked>> | 100% | 54,810 psi | 86% | 2398 fps | 99.1% |
| ADI AR 2219 | <<locked>> | 86% | 55,941 psi | 88% | 2388 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 94% | 56,855 psi | 89% | 2408 fps | 100% |
| Alliant AR-Comp | <<locked>> | 94% | 55,927 psi | 88% | 2388 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 88% | 54,810 psi | 86% | 2457 fps | 99.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 98% | 56,753 psi | 89% | 2543 fps | 99.4% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 53,359 psi | 84% | 2411 fps | 99.8% |
| Alliant Reloder-10x | <<locked>> | 88% | 55,187 psi | 86% | 2333 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 98% | 54,505 psi | 85% | 2434 fps | 99.3% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 41,350 psi | 65% | 2283 fps | 96.3% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 47,253 psi | 74% | 2415 fps | 99.1% |
| Alliant Reloder-7 | <<locked>> | 82% | 55,013 psi | 86% | 2277 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 86% | 54,491 psi | 85% | 2283 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 96% | 57,043 psi | 89% | 2461 fps | 99.1% |
| Bofors RP3ᴾ | <<locked>> | 100% | 53,519 psi | 84% | 2428 fps | 99.9% |
| Hodgdon Benchmark | <<locked>> | 92% | 55,927 psi | 88% | 2356 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 94% | 55,071 psi | 86% | 2438 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 92% | 57,072 psi | 89% | 2516 fps | 99.5% |
| Hodgdon H322 | <<locked>> | 92% | 56,565 psi | 89% | 2395 fps | 100% |
| Hodgdon H335 | <<locked>> | 86% | 55,056 psi | 86% | 2395 fps | 100% |
| Hodgdon H380ᴾ | <<locked>> | 100% | 55,477 psi | 87% | 2434 fps | 98.5% |
| Hodgdon H4198 | <<locked>> | 86% | 57,711 psi | 90% | 2320 fps | 100% |
| Hodgdon H4895 | <<locked>> | 96% | 57,595 psi | 90% | 2454 fps | 99.9% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 37,710 psi | 59% | 2192 fps | 97% |
| Hodgdon LEVERevolutionᴾ | <<locked>> | 100% | 55,492 psi | 87% | 2477 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,330 psi | 54% | 1391 fps | 100% |
| Hodgdon VARGET | <<locked>> | 98% | 54,215 psi | 85% | 2395 fps | 99.7% |
| IMR 3031 | <<locked>> | 98% | 54,447 psi | 85% | 2418 fps | 100% |
| IMR 4064ᴾ | <<locked>> | 100% | 52,982 psi | 83% | 2365 fps | 99.1% |
| IMR 4166 Enduronᴾ | <<locked>> | 100% | 53,592 psi | 84% | 2339 fps | 95.9% |
| IMR 4198 | <<locked>> | 88% | 55,796 psi | 87% | 2297 fps | 100% |
| IMR 4895 | <<locked>> | 98% | 55,767 psi | 87% | 2461 fps | 99.7% |
| IMR 8208 XBR | <<locked>> | 94% | 56,855 psi | 89% | 2408 fps | 100% |
| Lovex D073.4 | <<locked>> | 84% | 57,421 psi | 90% | 2402 fps | 100% |
| Lovex D073.5 | <<locked>> | 90% | 57,261 psi | 90% | 2405 fps | 100% |
| Lovex D073.6 | <<locked>> | 96% | 55,869 psi | 88% | 2425 fps | 100% |
| Lovex S060 | <<locked>> | 94% | 54,636 psi | 86% | 2346 fps | 99.5% |
| Lovex S062ᴾ | <<locked>> | 100% | 56,724 psi | 89% | 2421 fps | 100% |
| Lovex S065ᴾ | <<locked>> | 100% | 46,209 psi | 72% | 2280 fps | 95.9% |
| Norma 200 | <<locked>> | 84% | 55,201 psi | 87% | 2310 fps | 100% |
| Norma 201 | <<locked>> | 96% | 55,840 psi | 88% | 2398 fps | 100% |
| Norma 202 | <<locked>> | 96% | 56,086 psi | 88% | 2402 fps | 100% |
| Norma 203Bᴾ | <<locked>> | 100% | 57,116 psi | 90% | 2467 fps | 99.7% |
| Norma URPᴾ | <<locked>> | 100% | 40,872 psi | 64% | 2274 fps | 96.1% |
| Ramshot Big Gameᴾ | <<locked>> | 100% | 57,450 psi | 90% | 2487 fps | 99.7% |
| Ramshot TAC | <<locked>> | 94% | 57,522 psi | 90% | 2425 fps | 98.1% |
| Ramshot Wild Boar | <<locked>> | 94% | 56,333 psi | 88% | 2441 fps | 99.6% |
| Ramshot X-Terminator | <<locked>> | 90% | 55,100 psi | 86% | 2375 fps | 99.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,389 psi | 54% | 1424 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 90% | 56,913 psi | 89% | 2402 fps | 100% |
| ReloadSwiss RS 50ᴾ | <<locked>> | 100% | 56,507 psi | 89% | 2418 fps | 97.1% |
| ReloadSwiss RS 52 | <<locked>> | 96% | 54,157 psi | 85% | 2490 fps | 99.3% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 50,531 psi | 79% | 2470 fps | 100% |
| Rottweil R 901 | <<locked>> | 94% | 56,956 psi | 89% | 2382 fps | 100% |
| Rottweil R 902 | <<locked>> | 98% | 56,275 psi | 88% | 2395 fps | 100% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 49,632 psi | 78% | 2369 fps | 99.5% |
| Shooters World AR Plus | <<locked>> | 84% | 57,421 psi | 90% | 2402 fps | 100% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 46,209 psi | 72% | 2280 fps | 95.9% |
| Shooters World Match Rifle | <<locked>> | 96% | 55,869 psi | 88% | 2425 fps | 100% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 56,724 psi | 89% | 2421 fps | 100% |
| Shooters World Tactical Rifle | <<locked>> | 88% | 57,174 psi | 90% | 2375 fps | 99.9% |
| SNPE Vectan BA6 1/2 | <<locked>> | 84% | 56,550 psi | 89% | 2067 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 86% | 56,028 psi | 88% | 2398 fps | 100% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 51,909 psi | 81% | 2428 fps | 99.3% |
| SNPE Vectan SP 3 | <<locked>> | 88% | 56,173 psi | 88% | 2349 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 94% | 55,216 psi | 87% | 2402 fps | 98.3% |
| SNPE Vectan SP 9 | <<locked>> | 96% | 55,738 psi | 87% | 2425 fps | 99.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 94% | 55,274 psi | 87% | 2313 fps | 100% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 54,273 psi | 85% | 2306 fps | 100% |
| Somchem S321 | <<locked>> | 90% | 54,476 psi | 85% | 2402 fps | 100% |
| Somchem S335 | <<locked>> | 96% | 57,145 psi | 90% | 2349 fps | 100% |
| Somchem S341 | <<locked>> | 94% | 54,534 psi | 85% | 2395 fps | 99.4% |
| Somchem S355ᴾ | <<locked>> | 100% | 50,734 psi | 80% | 2372 fps | 99.4% |
| Somchem S365ᴾ | <<locked>> | 100% | 36,289 psi | 57% | 2228 fps | 98.2% |
| Unknown powderᴾ | <<locked>> | 100% | 45,281 psi | 71% | 2329 fps | 96.4% |
| Vihtavuori N120 | <<locked>> | 84% | 57,087 psi | 89% | 2251 fps | 100% |
| Vihtavuori N130 | <<locked>> | 90% | 55,172 psi | 86% | 2287 fps | 100% |
| Vihtavuori N133 | <<locked>> | 94% | 54,969 psi | 86% | 2303 fps | 100% |
| Vihtavuori N135 | <<locked>> | 98% | 54,795 psi | 86% | 2365 fps | 100% |
| Vihtavuori N140 | <<locked>> | 98% | 56,695 psi | 89% | 2385 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 48,863 psi | 77% | 2316 fps | 99.8% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 43,352 psi | 68% | 2277 fps | 96.6% |
| Vihtavuori N530 | <<locked>> | 94% | 57,711 psi | 90% | 2411 fps | 100% |
| Vihtavuori N540 | <<locked>> | 98% | 54,607 psi | 86% | 2385 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 42,003 psi | 66% | 2280 fps | 96.1% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 44,744 psi | 70% | 2270 fps | 98.6% |
| Winchester 748 | <<locked>> | 92% | 57,392 psi | 90% | 2464 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 90% | 57,595 psi | 90% | 2461 fps | 99.9% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 38,058 psi | 60% | 2100 fps | 100% |
| Accurate 2200 | <<locked>> | 80% | 49,110 psi | 77% | 2320 fps | 98.3% |
| Accurate 2230 | <<locked>> | 80% | 49,269 psi | 77% | 2326 fps | 98.7% |
| Accurate 2460 | <<locked>> | 80% | 41,133 psi | 64% | 2182 fps | 99.8% |
| Accurate 2495 | <<locked>> | 80% | 30,458 psi | 48% | 2024 fps | 99.9% |
| Accurate 2520 | <<locked>> | 80% | 34,998 psi | 55% | 2126 fps | 98.9% |
| Accurate 4064 | <<locked>> | 80% | 28,819 psi | 45% | 2005 fps | 98.3% |
| Accurate 4350 | <<locked>> | 98% | 37,231 psi | 58% | 2228 fps | 95.3% |
| Accurate LT-30 | <<locked>> | 80% | 46,543 psi | 73% | 2169 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 46,920 psi | 74% | 2185 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 34,838 psi | 55% | 2096 fps | 95.9% |
| ADI AR 2207 | <<locked>> | 80% | 50,705 psi | 79% | 2221 fps | 100% |
| ADI AR 2208 | <<locked>> | 86% | 35,911 psi | 56% | 2103 fps | 95.3% |
| ADI AR 2219 | <<locked>> | 80% | 45,818 psi | 72% | 2264 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 36,753 psi | 58% | 2113 fps | 97.7% |
| Alliant AR-Comp | <<locked>> | 80% | 35,230 psi | 55% | 2119 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 42,148 psi | 66% | 2270 fps | 98.5% |
| Alliant Power Pro 2000-MR | 53.2 gr | 86% | 38,218 psi | 60% | 2244 fps | 95.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 30,342 psi | 48% | 2031 fps | 95.4% |
| Alliant Reloder-10x | <<locked>> | 80% | 43,308 psi | 68% | 2182 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 35,230 psi | 55% | 2129 fps | 95.4% |
| Alliant Reloder-16 | <<locked>> | 98% | 39,030 psi | 61% | 2238 fps | 95.5% |
| Alliant Reloder-17 | <<locked>> | 90% | 34,243 psi | 54% | 2175 fps | 95.8% |
| Alliant Reloder-7 | <<locked>> | 80% | 51,547 psi | 81% | 2238 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 45,266 psi | 71% | 2172 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 38,464 psi | 60% | 2188 fps | 95.7% |
| Bofors RP3 | <<locked>> | 82% | 29,472 psi | 46% | 2028 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 39,044 psi | 61% | 2113 fps | 98.7% |
| Hodgdon BL-C2 | <<locked>> | 80% | 34,534 psi | 54% | 2126 fps | 97.8% |
| Hodgdon CFE223 | 50.6 gr | 80% | 37,927 psi | 59% | 2224 fps | 96.2% |
| Hodgdon H322 | <<locked>> | 80% | 38,899 psi | 61% | 2159 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 44,889 psi | 70% | 2260 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 40,118 psi | 63% | 2211 fps | 95.4% |
| Hodgdon H4198 | <<locked>> | 80% | 48,254 psi | 76% | 2205 fps | 100% |
| Hodgdon H4895 | <<locked>> | 80% | 34,998 psi | 55% | 2110 fps | 96.6% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 33,315 psi | 52% | 2103 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 31,401 psi | 49% | 2077 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,512 psi | 40% | 1243 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 31,401 psi | 49% | 2018 fps | 95.2% |
| IMR 3031 | <<locked>> | 80% | 30,922 psi | 48% | 2060 fps | 99.6% |
| IMR 4064 | <<locked>> | 86% | 35,070 psi | 55% | 2083 fps | 95.4% |
| IMR 4166 Enduron | <<locked>> | 98% | 50,589 psi | 79% | 2297 fps | 95.2% |
| IMR 4198 | <<locked>> | 80% | 44,440 psi | 70% | 2156 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 33,692 psi | 53% | 2110 fps | 95.7% |
| IMR 8208 XBR | <<locked>> | 80% | 36,753 psi | 58% | 2113 fps | 97.7% |
| Lovex D073.4 | <<locked>> | 80% | 49,980 psi | 78% | 2313 fps | 100% |
| Lovex D073.5 | <<locked>> | 80% | 40,727 psi | 64% | 2182 fps | 99.2% |
| Lovex D073.6 | <<locked>> | 80% | 32,866 psi | 52% | 2083 fps | 98.4% |
| Lovex S060 | <<locked>> | 80% | 36,085 psi | 57% | 2057 fps | 96.2% |
| Lovex S062 | <<locked>> | 80% | 30,806 psi | 48% | 2011 fps | 96.1% |
| Lovex S065 | <<locked>> | 98% | 43,555 psi | 68% | 2241 fps | 95.3% |
| Norma 200 | <<locked>> | 80% | 48,776 psi | 76% | 2234 fps | 100% |
| Norma 201 | <<locked>> | 80% | 34,200 psi | 54% | 2067 fps | 97.2% |
| Norma 202 | <<locked>> | 80% | 34,127 psi | 53% | 2080 fps | 99.1% |
| Norma 203B | <<locked>> | 82% | 32,372 psi | 51% | 2073 fps | 95.1% |
| Norma URP | <<locked>> | 98% | 38,522 psi | 60% | 2231 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 84% | 34,026 psi | 53% | 2123 fps | 95.2% |
| Ramshot TAC | <<locked>> | 84% | 41,814 psi | 66% | 2198 fps | 95% |
| Ramshot Wild Boar | <<locked>> | 80% | 35,491 psi | 56% | 2123 fps | 96% |
| Ramshot X-Terminator | <<locked>> | 80% | 40,016 psi | 63% | 2152 fps | 97.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,657 psi | 40% | 1273 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 41,481 psi | 65% | 2192 fps | 99.5% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 46,673 psi | 73% | 2287 fps | 95.2% |
| ReloadSwiss RS 52 | 50.4 gr | 84% | 36,289 psi | 57% | 2205 fps | 95.7% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 28,326 psi | 44% | 2037 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 80% | 37,855 psi | 59% | 2113 fps | 99.5% |
| Rottweil R 902 | <<locked>> | 80% | 32,692 psi | 51% | 2028 fps | 96.7% |
| Rottweil R 903 | <<locked>> | 86% | 31,633 psi | 50% | 2070 fps | 95.7% |
| Shooters World AR Plus | <<locked>> | 80% | 49,980 psi | 78% | 2313 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 98% | 43,555 psi | 68% | 2241 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 32,866 psi | 52% | 2083 fps | 98.4% |
| Shooters World Precision | <<locked>> | 80% | 30,806 psi | 48% | 2011 fps | 96.1% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 43,816 psi | 69% | 2201 fps | 98.8% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 51,024 psi | 80% | 2008 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 46,064 psi | 72% | 2270 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 33,388 psi | 52% | 2116 fps | 95.1% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 43,961 psi | 69% | 2195 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 39,407 psi | 62% | 2169 fps | 95% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 33,547 psi | 53% | 2073 fps | 95.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 36,056 psi | 56% | 2044 fps | 99.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 29,356 psi | 46% | 1932 fps | 98.8% |
| Somchem S321 | <<locked>> | 80% | 39,204 psi | 61% | 2178 fps | 98.6% |
| Somchem S335 | <<locked>> | 80% | 35,418 psi | 56% | 2047 fps | 99.7% |
| Somchem S341 | <<locked>> | 80% | 34,229 psi | 54% | 2083 fps | 95.5% |
| Somchem S355 | <<locked>> | 84% | 30,966 psi | 49% | 2037 fps | 95.1% |
| Somchem S365 | <<locked>> | 92% | 28,485 psi | 45% | 2051 fps | 95% |
| Unknown powder | <<locked>> | 98% | 42,409 psi | 66% | 2283 fps | 95.7% |
| Vihtavuori N120 | <<locked>> | 80% | 50,604 psi | 79% | 2182 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 40,973 psi | 64% | 2106 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 36,056 psi | 56% | 2047 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 31,140 psi | 49% | 2024 fps | 99.9% |
| Vihtavuori N140 | <<locked>> | 80% | 32,155 psi | 50% | 2028 fps | 99% |
| Vihtavuori N150 | <<locked>> | 82% | 27,572 psi | 43% | 1946 fps | 95.3% |
| Vihtavuori N160 | <<locked>> | 96% | 38,072 psi | 60% | 2188 fps | 95% |
| Vihtavuori N530 | <<locked>> | 80% | 36,709 psi | 58% | 2110 fps | 97.8% |
| Vihtavuori N540 | <<locked>> | 80% | 30,966 psi | 49% | 2018 fps | 98.3% |
| Vihtavuori N550 | <<locked>> | 98% | 39,392 psi | 62% | 2238 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 32,358 psi | 51% | 2047 fps | 95% |
| Winchester 748 | <<locked>> | 80% | 38,058 psi | 60% | 2192 fps | 98.9% |
| Winchester StaBALL Match | <<locked>> | 80% | 40,335 psi | 63% | 2221 fps | 98% |
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 118 powders for 9.3 RSM loaded with the .366 | 286gr | North Fork Cup Point Solid. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,543 fps; across all powders the maximum-charge window runs from 1,391 fps to 2,543 fps. Accurate 2700 gives the best case fill at 100 %, and 118 of the 118 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 46–90 %, leaving at least 10 % headroom. The 286.0 gr projectile in 0.366" calls for a 1:15.0 twist; slower twists will usually not stabilise this weight. Accurate 2700, Accurate 4064, Accurate 4350 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. Alliant Power Pro 2000-MR, ReloadSwiss RS 52, Hodgdon CFE223 rank at the top here: for 9.3 RSM with the .366 | 286gr | North Fork Cup Point Solid they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2700, Alliant Reloder-23, Bofors RP7 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.