Got 1/2 in steel from a local scrap yard and made a bunch of different targets for my sons and and me. 15 5 inch round targets 2 groundhogs and 2 bowling pins.
Been shooting them for about 8 years with everything from .22 to 500s&w
with no problems. Bullets splatter when they hit. Never had any problems with boolits coming back as us. Do this at your own risk. ya know lawyers and all that