I recently purchased a bergara HMR 308 rifle used with less than a hundred rounds through it and it seems like a great rifle. The problem is I find the play the magazine has when fully inserted and the mag release latch engaged is absolutely appalling. You can move bottom of mag 3/4" either way side to side while the latch is locked. You can move it far enough that mag feed lips bind the bolt up. I thought this was a one off problem but I went to a gun shop aand examined a brand new one which did exactly the same thing. Any ideas on how to fix or which bottom metal I should get prepared to buy to resolve this. I have a 700 police fitted with HS dbm bottom metal and it does not have any excess slop with the magazine locked in place.