I live on 5 acres outside the city limits . I had a friend of mine construct a box built with 2x8 and put 3/4 inch plywood on the front and back . It is 4 ft x 4ft built on 2x 8 legs.
About 6 ft tall, filled with sand , 17each 40lb bags. The sand is 8 inches thick. Really nice.
Wanted something to stop 9mm, 38 with. Concerned with busting up plywood too quickly. He made it where I can unscrew plywood , put new piece on or add to it.
Trick would be laying it down to do that , seeing how heavy it is.
Any way a guy at work gave me a piece of conveyor belt material 4 ft x 6ft , 1/2 inch thick rubber. Very dense .
He said I could put that on the front on hang it a few inches in front of the backstop.
My concern , Could the bullet possibly bounce back ?? I dont see anything penetrating that rubber ?
The whole idea might be a bad one using that rubber material, boy its thick and dense ?
Any ideas appreciated.