Talk:The Evil Dead
According to a post by Bruce Campbell on reddit, his brother now owns the shotgun used in this movie: http://www.reddit.com/r/IAmA/comments/go7qc/im_bruce_campbell_ama/c1p0jue
BC: "My brother has the shotgun from the original Evil Dead - not because he likes the movie, but because he likes guns."
While it's already been theorized, I can (probably) confirm the fact that the shotgun is indeed a 20 gauge. When Ash heads down into the cellar for the shells, you get a brief glimpse of the box which does specify "20 GAUGE" on it. Still a bit fuzzy on embedding images, so here's a link to the screencap. http://i1383.photobucket.com/albums/ah308/pokedalt/The%20Evil%20Dead%20-%20Shotgun%20shells%2020%20gauge_zpsy2rssldi.png