I have a Model 16FHLSS, (Accutrigger, Accustock hinged floor plate, left handed) rifle in .243 Win that has feed problems from the center feed magazine. It will usually release the round too early so it pops up and the rim hits the top of the bolt face. I have to back off the bolt slightly to center it so it will chamber. I called Savage and they sent me a new magazine box but the new one does exactly the same thing. I see nothing bent or out of place but this can't be right. I have an older model 16 (pre-Accustock) in 7mm-08 that does not have this problem so I know it's not inherent.

Any thoughts or suggestions?