since he already has a .223 i would forget the .22 hornet and go for the .22 mag as the hornet more-or-less splits the difference between the mag and the .223.
as far as the firearm itself, i dont have a whole lot of experience but i do have a marlin 925m in that caliber that will easily shoo sub 1" groups at 100 yards, even in the wind. a guy i work with has a henry lever action in .22 mag that he swears is a tack-driver.
as far as the firearm itself, i dont have a whole lot of experience but i do have a marlin 925m in that caliber that will easily shoo sub 1" groups at 100 yards, even in the wind. a guy i work with has a henry lever action in .22 mag that he swears is a tack-driver.