Sound or no sound, none of this is any good unless you practice it like a fire drill. I've had my wife go through some drills when I'm going to be gone for a while. I explicitly tell her to make noise when she slams the round home and then announce to the bad guy that she is armed with a 12ga, knows how to use it, will use it, and tell the guy to GTFOOMH now. This is assuming the bad guy can hear anything with two protective dogs giving him the drill. You're never more proud of your wife when she can get the shotgun out and ready to rock-n-roll from the time it takes to get from front door to bedroom.