I have read about a JB weld solution but, if you do it, don't tell anyone...
I have a '75 and, it could be the most accurate iron in the safe. I'd like to slap a scope on it but, to do it properly, I'd need a smith (or some serious luck). My local smith has done a couple. Very nice when he's done. I might pursue it when any of the other 1,000,000 projects I have in mind get done. If you're in SE Ontario PM me and, I'll gladly give you his number.