My plain jane factory 111 (pencil barrel, top bolt release, side button DBM- purchased new in early 2000's) shoots 150gr Hornady American Whitetail GREAT. This rifle was originally a 270 rebarreled to a 30-06 using a stock savage take-off barrel (also a sporter/pencil barrel). I threaded it all the way against the go-gauge so it might have a little "tighter" chamber which can help with factory ammo but regardless, I always recommend Hornady American Whitetail. It's one of the most accurate and also the cheapest commercial hunting ammo I've tried and it's pretty easy to find. For elk I've used Nosler Trophy grade 180gr and it shoots well but it's not as accurate as the Hornady. I had horrible results with Remington Core-Lokt. For reloads, she really shines using 150gr SSTs and IMR 4064.