9>7.62, and if the rounds are subsonic, will the 9mm can be ok to use for 300blk?
Originally Posted By azoutdoorsman:
9>7.62, and if the rounds are subsonic, will the 9mm can be ok to use for 300blk?
yup, good to go
make sure you don't get a supersonic mixed up in there....

Originally Posted By BCV:
make sure you don't get a supersonic mixed up in there....

Yeah, no kidding! That would make for a bad experience. I don't think I will even bother with supersonic ammo, as I'm not a hunter and have no real use for it.
Originally Posted By LMTRocks:
Get on youtube and search for the SilencerCo 300blk sub sonic video(s).
They used 30cal, 9mm, and 45cal suppressors and both the 9 and 45 were about 5db quieter than the 30cal suppressor.
It was really cool seeing a 300blk 220gr sub get to 126db with a wet 45 suppressor.
This reaffirms my belief that I should have gone with a pistol suppressor first.
Thanks
We have performed pressure measurements for the .300 Blackout subsonic in the entrance chamber of our 9mm suppressors, and the pressure is comparable to that produced by 147 gr commercial ammunition. Therefore, we rate our 9mm suppressors for the 20 gr subsonic (only) .300 B/O. We have not yet done the pressure measurements with the supersonic.