The Brits say steel shot and vintage guns is OK

[Researcher]

My cousins in Minnesota used my father's old Remington KED-grade with early steel shot and it bulged the chokes and broke the ribs loose. Over the years I've seen two Magnum-12 NIDs with bulges at the chokes, a No. 2E at the Cabelas flagship store in Sydney back when Wes Dillon was running the gun library and the other a Field Grade at The Big Reno Show a few years ago.

[Bill Murphy]

My 10 gauge AYA Matador with .040 chokes never suffered any damage shooting #2 and #BB steel. The round count was not large, but more like medium. I never shot anything larger than #BB.

[mobirdhunter]

I'll keep shooting lead and bismuth as long as I can. I have no reason to shoot heavy or super fast loads out of what I consider to be a piece of history. Not sure what I'll do if Missouri bans lead for all shooting, as they continually hint at doing.