I'd like Specs and ideas to make a bullet trap and bullet stopper hanging targets. I've seen many threads about bullet stops and traps but not the specs I'm looking for. I'll be making the simplest trap, a sheet of metal (3'x3') at an angle, which leads to my 1st question. What's the right or best angle for this type of trap? I've read less than 30 degrees and I've seen many posting a standard 45 degree angle is fine. Weight wont be an issue, I have a tractor to move it but we shoot a 7mm mag, 300 win mag etc from 100 yards to almost 1000 yards. I want the bullets to hit the metal and be deflected down to the ground. How thick of steel would be assured to stop the bullets? I'll be going to metal scrap yard so I doubt they'll have hardened steel. Moving on to the hanging steel targets - How thick should the steel be (if hanging at a 90 degree angle to impact) to stop those bullets from passing through?