Shooting a penny with a rifle

Me and a friend were talking about trying this today and it sounded more difficult than it actually turned out to be. I used my daughters N.E.F. youth model combo rifle and CCI Quiet Ammo. You've heard me brag on this ammo before, I love it. I will be trying this again in the near future with my Ruger Mark III at 20 feet. I know it will be tougher but I still think I can get it done.
http://www.facebook.com/TheBuffaloAndRicochetShow?ref=hl I am now accepting friend requests on my personal FB page as well- https://www.facebook.com/jwcfordtruck