5.56mm (automato M16) ir 12.7mm :) http://farm2.static.flickr.com/1269/565558248_f2f19e7f2c_o.jpg "bbd" <b@b.d> wrote in message news:h3kd9s$64q$1@trimpas.omnitel.net... > http://www.youtube.com/watch?v=TOZoYIoyjuM&feature=related > >