Steel target companies say to use lead core Bullets only. I hunt with copper bullets and want to use AR500 steel as a training tool at 300 -500yds. I’m Shooting 130grain 270 win and 180 grain 30-06. Is there any risk of a deflection at these ranges with a gravity hung plate? Are lead core bullets recommended just because copper is hard on the steel target or is it a legitimate safety concern? Anyone have actual experience with monolithic hunting bullets on steel targets?