I use to see them in every sporting good store you stepped into.......not so much anymore?
up till about 4 years ago i would see one or the other at the local pawn shop every week . only had one other collector here in town but he died about 15 years ago.
now a day's its months between them. the most common to show up for some reason are the 50's F's. with the post mil F's coming in second. and most of those in 308.