Yes, that’s Rust in the forcing cone and first 1″ ish of the barrel on my Beretta Stampede in .45colt :o:oops::(
Apparently I need to oil the sucker a little better when put away.. (or check on it more often… haven’t had it out since last summer, ain’t been fired in over a year. :oops::( )
Or use it more often. 😉