Just watched this movie not seen it in years. Dirty Harry and his m29. Checked into other guns used. Seems the bad young cops were using pythons, Hal Holbrook Harry's boss using a m29 snub and a variety of shotguns were used. A few others mentioned in various scenes. I liked seeing revolvers, nice ones like were used years ago. One Beretta semi auto also. Did a search and each scene told gun present.