We actually have five people in our little shooting circle that have them 2 have 223 cans and wish every day they would have gotten 30 cal can it is very versital, on a 22 rim fire wit sub sonic rounds the action falling gets annoying since that is all you can hear. with 308 i load lapua 200 grain subsonic bullets on 12 grains of trailboss same result only you do get a thump about like air rifle, knocks crap out of wild hog at 50 or 60 yards. they run but dont have any idea which way to go because they dont know where it came from. i have also stood down range while 30 cal supersonic rounds are fired (safely and dont do as i do) the crack and thump of round hitting are interesting sounds like someone threw firecracker under your feet but you cannot tell where it came from. thought that might interest someone.