Break your upper open and run the spring screw in all the way with the Allen wrench provided, then buy a couple of bricks of Federal 550 bulk-pak at Wal-Mart. Run the first brick thru the rifle to smooth it out. This arm functions better the higher the round count. The chamber is TIGHT, it will not like any out-of-spec ammo. The Federal has the most consistant round size that I've found. Clean it good, making sure the chamber is cleaned real well. When loading your mags, make sure the rounds criss-cross when loaded. Spray the action after every magazine change. After using it for a brick or two your feed problems should go away....Best of Luck!! I am really enjoying mine!!!
Last edited by rodent.22; 08-08-2010 at 12:41 PM.