Browning Micro Medallion 243 wants to double feed from the magazine. When I load 3 or more into the mag. it works fine until I fire the first round and then when I work the bolt it tries to pick up 2 rounds. Are the rounds moving in the magazine or what? Is a new mag. the answer or just load 2 at a time and call it good? I doubt I'll need over 2 anyway.