RE: Buyer needs reassurance...
Of the short maghnums, the .270 is an excellent one for your purposes. BUT, I have heard some horror stories about some of the factory ammo in that caliber being overly hot, and causing difficult bolt opening, etc. So if you don't plan to handload for it, if you get a box of factory ammo that is accurate and works well, it would be prudent to buy several more boxes of the same lot number, so it will last you awhile.