Anyone know where I can buy a cartridge poster? That is, a poster showing different cartridges for display in my gunsmithing shop? Thanks.

i think that Kynamco"Kynoch" have such posters.

Don't have a poster per se but I do have a Federal counter pad - shows the cartdges, shotshells, pellet size, etc.
Would you be interested in this?
Post me back if so.