I asked this in the 7stw page but nobody there had tried a dbm magazine on a 7stw so thought I would ask here. I just picked up a long action B&C tactical stock w/ dbm and mag. The mag that it is coming with is for a 338LM which I am pretty sure will not work with a 7stw, I do not think that I will have a hard time selling it though. They also sell a magazine for the 300WM that looks like it might work with the 7stw. Has anyone used a detachable magazine with a 7stw, and what magazine did you use to get it to feed correctly? I know some mag will work, I just do not want to randomly buy a mag if someone here knows the answer. Thanks for the help.