I belong to a Sportsman club that has a target/trap range there are 25/50/100 and 200 yard target racks and each has an earthen berm to trap the bullets. The 25 yard target is for 22 rimfire and pistol use (had to designate this because of the constant abuse from AR/AK type guns degrading the safety berm with the constant 20 round barrage from the bullet hoses) Again this is a target range but we constantly have problems with Pistol and the above mentioned rifles destroying the place with the how fast can I empty the mag mentality and the refusal to pick up brass/steel cases. The range is open to all members 7 days a week with very few closed days. The fee is nominal ($20) annually and members give the lock code to others which does not cover them under our insurance and risks having to close the range or restrict the time the range will be open as we will have to man the gate to prevent unauthorized use. The vast majority of members are well behaved but a small group continually shoot the place up, other than installing cameras which for a small club is out of the question what would you suggest.