door, requires no ear protection at all. That is, with gun's muzzle kept inside of the van's configuration, too. Try that with a high speed .22lr in a regular rifle, and your ears will be ringing. Guys who claim that a canned .223 "sounds like an unsuppressed .22 lr" are either LYING, or never fired a GOOD one.
Many of the commercially available cans are not particularly quiet, because the makers don't want to be bothered to create such, or they don't want to have to make the can as big and heavy as it needs to be in order to be THAT effective.
With a GOOD can, there's no audible diff between first and subsequent rounds, rapidfire or not. Just the same pool cue breaking sort of a "crack". Very "flat', short lived, doesn't echo or reverbate. VERY hard to locate, not audible at 1/4 mile in flat, open terrain, or HALF that far in wooded hills.
With a GOOD can, there's no audible diff between first and subsequent rounds, rapidfire or not. Just the same pool cue breaking sort of a "crack". Very "flat', short lived, doesn't echo or reverbate. VERY hard to locate, not audible at 1/4 mile in flat, open terrain, or HALF that far in wooded hills.