For banditophiles, the question is what is a .45 rimfire? There was a .46 rimfire, a .45 "short" rimfire...or what was the actual cartridge. The gun is a Smith and Wesson #3. Gun is in the J M Davis Museum in Claremore, Oklahoma which houses some 14,000 guns. It is only 1 of 2 state buildings which contains graves. J. M Davis and his second wife are buried in the Museum building and the other graves are the family of Will Rogers which is buried in the Will Rogers Memorial in the same town.