Mark your barrel with an eraseble sharpie, the rounds should be hitting anywhere from half way up the feed ramp or higher.. If they are its not your barrel. Possibly your spring and followers may be worn out..
I load 1.185 with coated bullets on all 3 of my 2011 and they run with out a hitch.. Mbx, Sti gen 1and 2 mags..
What type of 2011 is it