Will a 30 cal suppressor work as well on a 223 as a dedicated 22 caliber suppressor?
It depends. Usually 30 cal cans are larger in volume to handle the larger cals. This makes them quieter, which usually is about offset by the larger hole.
If you were only going to buy one silencer a 30 cal can gives you some flexibility as to what you can put it on now and down the road.
TBAC makes great silencers and were/are designed by precision shooters, i.e., you bolt guys. You have a ton of options....TBAC, SRT, Silencerco to name just a few.
Sendit