I got this on another site and thought it shows a good lesson.
Someone, somewhere, decided to remove the rusted pits from the bores of this LC Smith. I'm assuming this because, though the OD of the bbl's are polished and reblued, I can still see the washed-out pits around the lettering.
The bores now measure .739". This left the barrel wall thickness at .018"-.019"...a wee bit thin.
A local dealer had this gun on consignment and had it sold. Three shots later and this is what the customer's "new" gun looked like. I've no idea who wil be coughing up the money for this.
No one was hurt.