The rifle range I go to does not allowed rapid firing semi auto rifles, but does allow rapid firing handguns. I really don't get any negative reactions except from the guys who try and act like they are professional teachers and then end up trying to fire the gun with the safty still on. Those type of guys bug me, but as long as they aren't interferring with my shooting, then I couldn't care less what they think.
I do love the challenge involved in rapid firing because it's not hard to fire a semi auto handgun at almost full auto speeds, but like Bob Wright said, accuracy is where the challenge is. When I am shooting a handgun normally, I shoot from 10 yards away, but when rapid firing I do it from like 5 yards. I'm hitting in the black section of my target so that's all that matters. I'm not just making a "brass shower". Although I have been known to do that on occasions. Heck, I payed for the ammo so I should be able to shoot it as fast as I want. :wink: :-D