So this landed today at my dealers. Nosler Custom (box label says) Model 48 in 7x57. Pretty much NOS maybe a few test rounds but no more I don't think. From what I can see it looks like good quality throughout. Receiver is bedded on both ends with a block hanging off the bottom of the tang for bedding.
I like that it has substantial wood in the trigger well area unlike most Mausers or similar, that always seem to crack there. I don't think this one will. Trigger is sweet at just over 2#. Feeds, extracts and ejects fine. Muzzle measure at .615", so not too wimpy at 24" long. Rifle weighs just over 7# empty.
Hopefully get it to the range next week. Here are a few pix. Pretty handsome rifle I think.