Beretz I bought the follower and mag box from someone on the forum getting rid of the parts. I bought bolt stop and ejector and mag spring from mgw.
That mag box looks weird. I'll bet the one I posted a pic of before, would work better. Not sure on the follower either, as I bet the 300WBY follower would also work better. Redneck would be the one to ask about which set up would work the best. Hopefully you get it sorted out. Before I saw the pics, I was thinking the magazine may just need to be tweaked a bit. But that is a whole different magazine box than what I was picturing. Good luck with it, maybe Redneck will chime in, or PM you..