Thanks for all the good info. Now I'm thinking I will stick with .308Win on the short action. Still want a user friendly 7mm long-range rig though. Seems a better way would be to rebarrel my long action (currently 30-06). That would give much more latitude in bullet/cartridge overall length, magazine length, and ejection of unfired rounds. 7mmWSM, 7mmSAUM, .280Rem, or 7mmRemMag would probably all get me where I want to go. I would prefer to stay with a standard case. The WSM or SAUM version kind of have my interest.
Thanks again for your insights. MM