Back many years ago when I shot pins I used 145 gr. Silver Tips in .357 magnum. (Yes, I'm old.) .38 Special just bounced off the pins even with a perfect hit. I used the old Blazer 200 gr flying ashtrays in .45 ACP. PO'd the admins who collected the brass I suspect.
Geoff
Who had to give up competition when his knee went, now my eyes are giving problems even after cataract surgery...sigh.