My son welded for me a solid stainless steel frame on which to hang a big gong. This will be great at the longer ranges from which I can shoot rifle, and really nice up close for pistol and carbine training.
I really need to do something like that. I've already rebuilt the 2x6 wooden one we have 2 or 3 times now. Copper jacket and lead fragments tend to chew them in half after a while.