I have one built on a ruger number 1, it's a nice caliber to shoot.
One thing I found, depending on the reamer used to cut the chamber is that simply necking up 30-06 cases results in a case that is quite a bit shorter then the trim to length of the reamer spec's, however, repurposing some otherwise useless 270 winchester brass by first full length sizing in a 30-06 full length die, then sizing in a 375-06 full length die results in a case that is long enough to trim the mouth square and be right on the trim to length of the chamber specs
265 grain cast bullets shooting MOA at 100 yards makes it a real fun gun to shoot at the range