We are considering building a range on our new hunting lease and were wondering if we could get a thicker sheet of steel maybe 30 x 30 inches or so and set it on a 30 degree angle to direct bullets into the ground, how thick would it have to be to stop anything from a 300WM on down from say 25 yards on out? I have never shot steel except my fathers barbacue pit which was 1/4 mild steel and my 222 remington shot right thru it at 50 yards and dinged the far side. My Dad dinged me of course for this stunt...so the question...how thick?
