I have a 10Ga. Harrington and Richardson that I really want to shoot but can only find Steel shot. I picked up a box of BB 3 1/2 STEEL. I haven't shot it cause I think steel is bad and I don't want to risk damaging my gun if it cannot handle steel loads. The gun has a 36" full choke barrel. Looked all over the net and there was no information. Thanks guys!