Load data for 9.3 RSM + .366 | 286gr | A-Square MONO RN

9.3 RSM cartridge drawing
A-Square logo

Load Specifications

Bullet Manufacturer:A-Square
Bullet Weight:286 gr
Bullet Diameter:0.366"
Bullet Length:<<locked>>
Case Length (l3):2.09"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:83.5 Grains of Water
Primer Size:Large Rifle Magnum (LRM)
Barrel Length:24"
Max. allowed Pressure:63,817 psi

Load data in caliber 9.3 RSM with .366 | 286gr | A-Square MONO RN bullet and 108 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 Power Pro 2000-MR and ReloadSwiss RS 52.

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"

PowderChargeFRMaxP%V(0)z
Accurate 2015<<locked>>86%54,650 psi86%2395 fps100%
Accurate 2460<<locked>>84%56,623 psi89%2467 fps100%
Accurate 2495<<locked>>92%56,231 psi88%2461 fps100%
Accurate 2520<<locked>>86%54,621 psi86%2477 fps100%
Accurate 2700<<locked>>92%56,057 psi88%2464 fps97.2%
Accurate 4064<<locked>>94%55,782 psi87%2500 fps100%
Accurate 4350ᴾ<<locked>>100%51,459 psi81%2526 fps99.4%
Accurate LT-30<<locked>>82%57,014 psi89%2382 fps100%
Accurate LT-32<<locked>>82%57,450 psi90%2405 fps100%
ADI AR 2206H<<locked>>90%57,159 psi90%2533 fps100%
ADI AR 2208<<locked>>94%54,433 psi85%2484 fps99.8%
ADI Benchmark 8208<<locked>>88%56,304 psi88%2490 fps100%
Alliant AR-Comp<<locked>>88%56,623 psi89%2461 fps100%
Alliant Power Pro 1200-R<<locked>>82%54,462 psi85%2536 fps100%
Alliant Power Pro 2000-MR<<locked>>92%56,550 psi89%2644 fps100%
Alliant Power Pro Varmint<<locked>>88%54,433 psi85%2500 fps100%
Alliant Reloder- TS 15.5<<locked>>96%57,609 psi90%2549 fps100%
Alliant Reloder-10x<<locked>>82%54,505 psi85%2398 fps100%
Alliant Reloder-15<<locked>>92%54,926 psi86%2526 fps99.9%
Alliant Reloder-16ᴾ<<locked>>100%50,285 psi79%2533 fps99.5%
Alliant Reloder-17<<locked>>98%54,607 psi86%2615 fps100%
Alliant Reloder-23ᴾ<<locked>>100%35,694 psi56%2300 fps98%
Alliant Reloder-26ᴾ<<locked>>100%39,305 psi62%2428 fps96.8%
Baschieri & Pellagri 106<<locked>>82%56,159 psi88%2385 fps100%
Baschieri & Pellagri 107<<locked>>90%56,855 psi89%2549 fps99.8%
Bofors RP3<<locked>>94%54,563 psi86%2520 fps100%
Bofors RP7<<locked>>98%54,998 psi86%2490 fps97.3%
Hodgdon Benchmark<<locked>>86%54,737 psi86%2428 fps100%
Hodgdon BL-C2<<locked>>88%55,274 psi87%2520 fps100%
Hodgdon CFE223<<locked>>86%57,363 psi90%2608 fps100%
Hodgdon H322<<locked>>84%57,101 psi89%2480 fps100%
Hodgdon H335<<locked>>82%54,433 psi85%2464 fps100%
Hodgdon H380<<locked>>94%55,811 psi87%2533 fps99.5%
Hodgdon H414ᴾ<<locked>>100%54,636 psi86%2572 fps98%
Hodgdon H4350<<locked>>98%55,825 psi87%2539 fps96.8%
Hodgdon H4895<<locked>>90%57,682 psi90%2543 fps100%
Hodgdon Hybrid 100Vᴾ<<locked>>100%46,340 psi73%2425 fps99.7%
Hodgdon LEVERevolution<<locked>>92%56,724 psi89%2575 fps100%
Hodgdon Superformanceᴾ<<locked>>100%55,840 psi88%2608 fps97.6%
Hodgdon TrailBossᴾ<<locked>>100%35,244 psi55%1483 fps100%
Hodgdon VARGET<<locked>>90%55,506 psi87%2500 fps100%
IMR 3031<<locked>>90%57,276 psi90%2520 fps100%
IMR 4064<<locked>>94%57,377 psi90%2513 fps100%
IMR 4166 Enduron<<locked>>90%54,447 psi85%2454 fps97.7%
IMR 4198<<locked>>82%54,708 psi86%2359 fps100%
IMR 4350ᴾ<<locked>>100%51,561 psi81%2467 fps96.7%
IMR 4451 Enduron<<locked>>98%57,145 psi90%2520 fps98.1%
IMR 4831ᴾ<<locked>>100%48,805 psi76%2474 fps99.2%
IMR 4895<<locked>>92%56,376 psi88%2552 fps100%
IMR 8208 XBR<<locked>>88%56,304 psi88%2490 fps100%
Lovex D073.5<<locked>>84%56,391 psi88%2477 fps100%
Lovex D073.6<<locked>>90%56,623 psi89%2513 fps100%
Lovex S060<<locked>>90%56,768 psi89%2467 fps100%
Lovex S062<<locked>>94%57,130 psi90%2510 fps100%
Lovex S065ᴾ<<locked>>100%56,072 psi88%2513 fps99%
Lovex S070ᴾ<<locked>>100%53,258 psi83%2493 fps97.8%
Norma 201<<locked>>90%55,782 psi87%2484 fps100%
Norma 202<<locked>>90%56,173 psi88%2484 fps100%
Norma 203B<<locked>>94%57,595 psi90%2559 fps100%
Norma URPᴾ<<locked>>100%50,807 psi80%2516 fps99.3%
Ramshot Big Game<<locked>>92%54,418 psi85%2539 fps99.9%
Ramshot Hunterᴾ<<locked>>100%49,922 psi78%2513 fps97.9%
Ramshot TAC<<locked>>88%56,608 psi89%2513 fps99.2%
Ramshot Wild Boar<<locked>>88%55,956 psi88%2526 fps100%
Ramshot X-Terminator<<locked>>86%57,261 psi90%2493 fps100%
ReloadSwiss RS 14ᴾ<<locked>>100%35,549 psi56%1516 fps100%
ReloadSwiss RS 40<<locked>>84%55,840 psi88%2470 fps100%
ReloadSwiss RS 50<<locked>>94%56,202 psi88%2513 fps98.5%
ReloadSwiss RS 52<<locked>>90%55,071 psi86%2585 fps99.9%
ReloadSwiss RS 60<<locked>>96%54,447 psi85%2615 fps100%
ReloadSwiss RS 62ᴾ<<locked>>100%51,039 psi80%2549 fps99.2%
ReloadSwiss RS 70ᴾ<<locked>>100%51,488 psi81%2572 fps99%
Rottweil R 901<<locked>>88%56,956 psi89%2464 fps100%
Rottweil R 902<<locked>>92%56,304 psi88%2480 fps100%
Rottweil R 903<<locked>>96%54,433 psi85%2513 fps100%
Rottweil R 907<<locked>>98%54,998 psi86%2490 fps97.3%
Shooters World Long Rifleᴾ<<locked>>100%56,072 psi88%2513 fps99%
Shooters World Match Rifle<<locked>>90%56,623 psi89%2513 fps100%
Shooters World Precision<<locked>>94%57,130 psi90%2510 fps100%
Shooters World SW4350ᴾ<<locked>>100%53,258 psi83%2493 fps97.8%
Shooters World Tactical Rifle<<locked>>82%55,521 psi87%2448 fps100%
SNPE Vectan SP 11<<locked>>96%56,188 psi88%2569 fps100%
SNPE Vectan SP 3<<locked>>90%57,711 psi90%2408 fps100%
SNPE Vectan SP 7<<locked>>88%54,911 psi86%2490 fps99.3%
SNPE Vectan SP 9<<locked>>90%55,317 psi87%2507 fps100%
SNPE Vectan Tubal 3000<<locked>>90%57,653 psi90%2425 fps100%
SNPE Vectan Tubal 5000<<locked>>96%57,421 psi90%2421 fps100%
SNPE Vectan Tubal 7000ᴾ<<locked>>100%56,652 psi89%2470 fps98%
Somchem S321<<locked>>86%57,667 psi90%2523 fps100%
Somchem S335<<locked>>90%56,782 psi89%2425 fps100%
Somchem S341<<locked>>88%54,389 psi85%2484 fps99.9%
Somchem S355<<locked>>96%54,795 psi86%2507 fps100%
Somchem S365ᴾ<<locked>>100%45,382 psi71%2474 fps100%
Vihtavuori N130<<locked>>86%57,580 psi90%2392 fps100%
Vihtavuori N133<<locked>>90%57,711 psi90%2408 fps100%
Vihtavuori N135<<locked>>92%55,767 psi87%2448 fps100%
Vihtavuori N140<<locked>>92%56,826 psi89%2464 fps100%
Vihtavuori N150<<locked>>98%56,260 psi88%2490 fps100%
Vihtavuori N160ᴾ<<locked>>100%53,577 psi84%2513 fps99.5%
Vihtavuori N530<<locked>>88%56,753 psi89%2490 fps100%
Vihtavuori N540<<locked>>92%54,839 psi86%2467 fps100%
Vihtavuori N550ᴾ<<locked>>100%52,431 psi82%2520 fps99.3%
Vihtavuori N555ᴾ<<locked>>100%38,174 psi60%2362 fps97.9%
Winchester 6.5 StaBALLᴾ<<locked>>100%54,114 psi85%2500 fps100%
Winchester 748<<locked>>88%56,507 psi89%2536 fps100%
Winchester 760ᴾ<<locked>>100%54,882 psi86%2575 fps98%
Winchester StaBALL HDᴾ<<locked>>100%31,778 psi50%2283 fps97.2%
Winchester StaBALL Match<<locked>>90%55,143 psi86%2516 fps100%

Recommended = one of the top powders for this cartridge and bullet combination.

Start Load - Barrel Length: 24"

PowderChargeFRMaxP%V(0)z
Accurate 2015<<locked>>80%45,556 psi71%2280 fps100%
Accurate 2460<<locked>>80%49,487 psi78%2375 fps100%
Accurate 2495<<locked>>80%38,116 psi60%2215 fps100%
Accurate 2520<<locked>>80%44,730 psi70%2346 fps100%
Accurate 2700<<locked>>86%46,180 psi72%2323 fps95.1%
Accurate 4064<<locked>>80%36,013 psi56%2208 fps100%
Accurate 4350<<locked>>86%31,923 psi50%2188 fps95%
Accurate LT-30<<locked>>80%53,853 psi84%2343 fps100%
Accurate LT-32<<locked>>80%54,215 psi85%2369 fps100%
ADI AR 2206H<<locked>>80%41,756 psi65%2306 fps98.9%
ADI AR 2208<<locked>>80%35,665 psi56%2178 fps96.8%
ADI Benchmark 8208<<locked>>80%43,816 psi69%2313 fps99.7%
Alliant AR-Comp<<locked>>80%43,656 psi68%2303 fps100%
Alliant Power Pro 1200-R<<locked>>80%51,097 psi80%2490 fps100%
Alliant Power Pro 2000-MR59.9 gr80%37,739 psi59%2326 fps97.3%
Alliant Power Pro Varmint<<locked>>80%42,264 psi66%2316 fps99.3%
Alliant Reloder- TS 15.5<<locked>>80%34,983 psi55%2195 fps98.2%
Alliant Reloder-10x<<locked>>80%51,372 psi81%2359 fps100%
Alliant Reloder-15<<locked>>80%37,579 psi59%2247 fps97.6%
Alliant Reloder-16<<locked>>86%32,909 psi52%2201 fps95.2%
Alliant Reloder-17<<locked>>80%30,182 psi47%2162 fps96%
Alliant Reloder-23<<locked>>94%29,733 psi47%2156 fps95.5%
Alliant Reloder-26<<locked>>98%36,709 psi58%2372 fps95.8%
Baschieri & Pellagri 106<<locked>>80%52,765 psi83%2346 fps100%
Baschieri & Pellagri 107<<locked>>80%40,770 psi64%2310 fps97.8%
Bofors RP3<<locked>>80%34,345 psi54%2195 fps98.2%
Bofors RP7<<locked>>92%45,818 psi72%2352 fps95.4%
Hodgdon Benchmark<<locked>>80%45,818 psi72%2306 fps100%
Hodgdon BL-C2<<locked>>80%42,279 psi66%2333 fps99.8%
Hodgdon CFE223<<locked>>80%46,470 psi73%2454 fps99.3%
Hodgdon H322<<locked>>80%50,183 psi79%2395 fps100%
Hodgdon H335<<locked>>80%50,923 psi80%2418 fps100%
Hodgdon H380<<locked>>80%35,447 psi56%2198 fps95.6%
Hodgdon H414<<locked>>92%42,250 psi66%2379 fps95.3%
Hodgdon H4350<<locked>>94%49,313 psi77%2444 fps95.5%
Hodgdon H4895<<locked>>80%42,134 psi66%2316 fps99.3%
Hodgdon Hybrid 100V<<locked>>84%28,195 psi44%2064 fps95.1%
Hodgdon LEVERevolution<<locked>>80%37,927 psi59%2290 fps99%
Hodgdon Superformance<<locked>>94%45,324 psi71%2448 fps95.3%
Hodgdon TrailBoss<<locked>>80%26,121 psi41%1319 fps100%
Hodgdon VARGET<<locked>>80%40,611 psi64%2277 fps99%
IMR 3031<<locked>>80%41,524 psi65%2310 fps100%
IMR 4064<<locked>>80%37,405 psi59%2205 fps97.6%
IMR 4166 Enduron<<locked>>82%42,482 psi67%2267 fps95.1%
IMR 4198<<locked>>80%51,547 psi81%2323 fps100%
IMR 4350<<locked>>96%45,556 psi71%2375 fps95.3%
IMR 4451 Enduron<<locked>>90%44,817 psi70%2339 fps95.6%
IMR 4831<<locked>>88%33,243 psi52%2198 fps95.6%
IMR 4895<<locked>>80%38,479 psi60%2274 fps98.4%
IMR 8208 XBR<<locked>>80%43,816 psi69%2313 fps99.7%
Lovex D073.5<<locked>>80%49,327 psi77%2385 fps100%
Lovex D073.6<<locked>>80%40,495 psi63%2287 fps100%
Lovex S060<<locked>>80%42,206 psi66%2254 fps98.9%
Lovex S062<<locked>>80%37,217 psi58%2211 fps99%
Lovex S065<<locked>>88%38,957 psi61%2244 fps95.7%
Lovex S070<<locked>>92%41,771 psi65%2316 fps95.3%
Norma 201<<locked>>80%41,046 psi64%2267 fps99.5%
Norma 202<<locked>>80%41,162 psi65%2274 fps100%
Norma 203B<<locked>>80%36,970 psi58%2238 fps98%
Norma URP<<locked>>86%32,619 psi51%2192 fps95%
Ramshot Big Game<<locked>>80%36,376 psi57%2251 fps97.6%
Ramshot Hunter<<locked>>92%38,711 psi61%2320 fps95%
Ramshot TAC<<locked>>80%43,627 psi68%2316 fps97.1%
Ramshot Wild Boar<<locked>>80%43,018 psi67%2336 fps99%
Ramshot X-Terminator<<locked>>80%47,297 psi74%2356 fps99.5%
ReloadSwiss RS 14<<locked>>80%26,484 psi42%1352 fps100%
ReloadSwiss RS 40<<locked>>80%49,095 psi77%2385 fps100%
ReloadSwiss RS 50<<locked>>84%40,843 psi64%2280 fps95.4%
ReloadSwiss RS 5258.1 gr80%39,189 psi61%2336 fps98%
ReloadSwiss RS 6059 gr80%32,111 psi50%2221 fps99%
ReloadSwiss RS 62<<locked>>88%33,997 psi53%2251 fps95.3%
ReloadSwiss RS 70<<locked>>90%36,912 psi58%2306 fps95.2%
Rottweil R 901<<locked>>80%44,918 psi70%2300 fps100%
Rottweil R 902<<locked>>80%39,044 psi61%2224 fps99.3%
Rottweil R 903<<locked>>80%32,401 psi51%2149 fps97.4%
Rottweil R 907<<locked>>92%45,818 psi72%2352 fps95.4%
Shooters World Long Rifle<<locked>>88%38,957 psi61%2244 fps95.7%
Shooters World Match Rifle<<locked>>80%40,495 psi63%2287 fps100%
Shooters World Precision<<locked>>80%37,217 psi58%2211 fps99%
Shooters World SW4350<<locked>>92%41,771 psi65%2316 fps95.3%
Shooters World Tactical Rifle<<locked>>80%51,895 psi81%2402 fps100%
SNPE Vectan SP 11<<locked>>80%33,431 psi52%2192 fps96.8%
SNPE Vectan SP 3<<locked>>80%42,844 psi67%2221 fps100%
SNPE Vectan SP 7<<locked>>80%41,800 psi66%2293 fps97.3%
SNPE Vectan SP 9<<locked>>80%40,364 psi63%2280 fps98.6%
SNPE Vectan Tubal 3000<<locked>>80%42,612 psi67%2228 fps100%
SNPE Vectan Tubal 5000<<locked>>80%35,244 psi55%2113 fps100%
SNPE Vectan Tubal 7000<<locked>>92%43,627 psi68%2287 fps95.5%
Somchem S321<<locked>>80%47,123 psi74%2385 fps100%
Somchem S335<<locked>>80%42,061 psi66%2228 fps100%
Somchem S341<<locked>>80%41,510 psi65%2293 fps98.8%
Somchem S355<<locked>>80%33,417 psi52%2156 fps97.4%
Somchem S365<<locked>>82%25,686 psi40%2051 fps95.5%
Vihtavuori N130<<locked>>80%48,153 psi75%2280 fps100%
Vihtavuori N133<<locked>>80%42,844 psi67%2221 fps100%
Vihtavuori N135<<locked>>80%38,363 psi60%2211 fps100%
Vihtavuori N140<<locked>>80%38,957 psi61%2218 fps100%
Vihtavuori N150<<locked>>80%31,662 psi50%2100 fps98.2%
Vihtavuori N160<<locked>>86%34,214 psi54%2195 fps95.5%
Vihtavuori N530<<locked>>80%43,758 psi69%2310 fps99.8%
Vihtavuori N540<<locked>>80%37,536 psi59%2211 fps99.9%
Vihtavuori N550<<locked>>86%33,460 psi52%2195 fps95.1%
Vihtavuori N555<<locked>>94%31,647 psi50%2224 fps95.7%
Winchester 6.5 StaBALL<<locked>>80%28,224 psi44%2034 fps95.2%
Winchester 748<<locked>>80%43,279 psi68%2352 fps100%
Winchester 760<<locked>>92%42,250 psi66%2379 fps95.3%
Winchester StaBALL HD<<locked>>98%29,791 psi47%2224 fps95.9%
Winchester StaBALL Match<<locked>>80%39,595 psi62%2283 fps98.9%

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.

<<locked>> you need an access license to unlock this data.

This overview compares 123 powders for 9.3 RSM loaded with the .366 | 286gr | A-Square MONO RN. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,644 fps; across all powders the maximum-charge window runs from 1,483 fps to 2,644 fps. Accurate 3100 gives the best case fill at 100 %, and 123 of the 123 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (440 MPa), the top charges use 47–90 %, leaving at least 10 % headroom. Accurate 3100, Accurate 4350, ADI AR 2209 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 Power Pro 2000-MR, ReloadSwiss RS 52 rank at the top here: for 9.3 RSM with the .366 | 286gr | A-Square MONO RN they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 3100, ADI AR 2209, Alliant Reloder-19 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.

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