How old is old? Does it have a fixed choke, or removable choke tubes? Shot steel loads through my 1100 for years with no problems before I upgraded to an SX3.
My firend used a Remington 1100 back in 1976 - 1984 for duck and goose hunting. Nothing but steel shot. Sorry, I do not know how old that 1100 was back then. Never a problem or concern.I got my dads old rem model 1100 and I was wondering if there is anything I could do so it will shoot steel because I want to start duck hunting and cannot really afford a new shotgun right now