Psst - .223 FTW. EJ On Fri, Apr 29, 2016 at 5:00 PM, Jay Hart via Novalug < novalug@firemountain.net> wrote: > I've taken a couple of 3.5 inch drives with me to the range. In a > nutshell, the disks can really > absorb a .45 caliber round. I was able to inflict some pain on the disk, > but never penetrate a > platter... > ... > >