7SAUM will do 2900-3000fps with a 180 out of either a short or long action. Long action makes things easier because of magazine length. I got a new 29" barrel, bolt-head and magazines for my Bighorn and screwed it on last week. Not quite as fast as XC's 7/300 WSM, or as sexy looking, but should deliver the mail out to a mile or so. I know Mark Chanlynn has chambered a couple 7SAUM's recently if you need a smith, I can also put you in touch with another is you decide to go that way.

Whichever you decide on, you better come down and shoot that sucker.