Sub sonic in 300 blackout with 150gr cast / jacketed

[Anchorite]

Google MDWS forum or look for .277 WLV

There is a forum dedicated to the MDWS wildcats.

[frkelly74]

Thank you

[Barry54]

I run a 7.5 inch barrel on an AR with a can. The load is 230 grain boolet, 9.8 grains AA1680. It runs, cycles the gun well and locks the bolt back with no issue. It is very quiet. Makes more noise hitting the berm than firing.

Have you tried it without the suppressor? Curious if it still cycles? I never tried 1680.
Thanks!

[Recycled bullet]

I shot very low velocity 150 grain noe 309-153-sp through my ruger ranch rifle, and it was fun and very quiet. It fed really well from the magpul 20 and 30 round BLK magazines. I used 3.5 grains of bullseye and plinked at paper plates at 50 yards.

I also shot the noe 225 grain 310-225-rn loaded over 10 grains of H110. This one feels and sounds much more powerful, must certainly by supersonic.

[36g]

There is a place for subsonic loads that don't cycle the action in an AR. "Fully functional" loads are great but you still get noise from the action cycling. If you want the quietest load then don't let the action move. The concept is born out by the fact that several of the Cold War suppressed pistols intended for assassination/clandestine use had the capability to lock the slide during firing to prevent semi auto function. The S&W M39 Hush Puppy, there was a Chinese pistol, Bulgarian, and Czech pistols among others.