So I am on my 2nd 416 ruger which was produced in 2011 and am still having trouble with the feeding, especially the first round with a loaded mag which goes too far left and gets caught on the tip of the fat hornady dgx bullet just by a little. going into the chamber, its as if the feed rails arent releasing it soon enough?? I sent my first 416 back to ruger and they "fixed" it but still did the same so I traded it off and now I bought another one and do not really want to send it back to ruger as my experience with my first one didnt change..Now my question is if I took some emery cloth to the feed rails would this help or could I end up ruining it, what grade should I use, also the brass gets scratched horrible...Will just shooting it break it in or what? I love the rifle but want it to feed factory ammo..sorry to be long winded. thanks