I have a rifle chambered in 300 win mag. It is built on a Mauser 98 action. I have to use it one shot at a time right now because the magazine won't feed more than one round correctly. The first round will strip off and when I eject the first case the rounds in the magazine pop out in the way of the bolt. Is there a quick fix for this. Or is there somewhere I can buy a replacement magazine. Or is a long Mauser 98 action not compatible with 300 win mag cases. Please Help. Thanks, Larz