I have both, .22 and .25. My .22 hw100 is my pellet gun. It shoots 18.1 jsb at 890. Fun plinking gun, 77 full power shots at 31 ftlbs. My .25 is a decated slug gun. 33 gr. at 990 fps or just over 70ftlbs. This is used for hunting, as you probably all ready know. Somethings to remember, know...