Originally Posted by Hectocotylus
Good article. The steel I am using is perfectly flat with no dings or dents. I have one piece for trying out bigger calibers to see what it will do. I have tried to attach a picture showing the splashes of lead they look very cool I think
Isn't that a disc? Those are dish shaped and curved aren't they? Some time ago I tried using a curved dozer blade as a backstop 9.22 long rifle) and got a lot of shrapnel coming back at the bench for the few rounds we fired (you could hear it flying past). I have no reason to believe it was anything that would seriously injure us but we stopped using it.
More recently we made a couple of gong targets out of flat steel plates (1/2" and 5/8 inch thick steel plate) hanging from a frame by chains. The first one is 6"X5", my son tested it out at 50 yards and 100 yards shooting CCI 20 grain FMJ .17 HMR out of a Savage Model 93R17FV. He got cratering in the target on all shots at both distances. The deepest craters are about 1/16th" deep and 1/4" wide. We will be welding the craters up and grinding them flat again in the next few days. We will not be shooting the .17 HMR at steel any more in the future (whole lot of energy in that little rascal!).
We did shoot FMJ and some old HD hollowpoints in .40S&W and cast lead .38 Special (or was it .357 mag?) both of which did not mar the steel surface in the slightest at 30 yards.
We did not have any fallout at the bench from any of the rounds fired.
This is a picture of the target before it was tested.