I have a .25-06 Ultra, also! .25-06 NEFs are kinda hot and cold here, most shoot good, but not all of em. Mine likes Hornady 117gr BTSP and Federal 115gr Nosler Partitions best, shoots ~1" @100yds, first 2 almost touching and the 3rd a bit away from the other 2. The Rem 100gr CLSP also shoot pretty good. Polish the chamber and you'll probably not have any failures to eject, one of the common complaints. Clean it good, inside and out before you shoot it, there's a bunch of gunk in most of em from the factory, filings, grease and the bores are filthy. Make sure the chamber is completely dry help with the ejection, also.