that's not true. a 223 ball hit in the
ribs of a cottontail ruins little if any meat, and the 223 autos offer the OPTION of the .22lr conversion unit,both for small game, and for tactical use against men, guard dogs, and for practice UNTIL shtf. Neither the 30 cal's nor the 22 mag offer anything of the kind. A can on a .30 cal will NOT suppress a .22 fired thru it, even if you DID have a .22 unit for it. Too much powder gas will escape thru the .350" hole you MUST have thru the .30 cal can(around the .223' diameter .22lr bullet)