I recently traded into an old Colt revolver, mid 1950’s and need OTD’s help in finding a gunsmith to take it to. Just out of curiosity, I was running a bore scope down the barrel and noticed what appeared to be a crack on the inside of the barrel. The area in question, somewhere close to where the barrel meets the forcing cone. Just want to make sure that this revolver is still safe to shoot and not just a wall hanger. Thanks in advance guys,.