I have an old .222 10" barrel on a Contender and it is a fine lite varment gun. I`ve been shooting 52 gn. Serrias and they shoot very well. It has been my tractor gun, but I`m afraid it don`t have the penitration I want for coyotes, so I`m replaceing it with a .243 Striker, as soon I can get a load worked up and get it zeroed. You`ll have alot of fun with your thriple duce, it`s a great little round for rifle or handgun.