I keep hearing about short mags in long actions. Based on the BR rounds, it seems like the best idea ever to me. I think it is a waste to cram those cases in short actions. I keep wanting to do it, as I have seen the draw-backs to short mags in short actions with short mags. That pick above is a case in point. You blow your powder capacity seating long bullets deep. I've read that the geometry of cases causes funky wave harmonics inside the case during ignition if you have a bullet seated below the neck and causes burn variations. My plan to build a 7wsm on a long action is alive and well, minus the feeding difficulty. It'll only take one, anyway...
