A company called Zastava Arms makes a modern line of mauser design rifles in 7mm mauser but I do not know who imports them.
I can't believe I completely forgot to look at Zastava. I was really interested in one of their rifles chambered in .243 a while back, but ended up going with the CZ 550 FS instead. I'll be sure to look that direction.
"We believe that all men are justified in defending themselves, their friends, and property, and the government, from the unlawful assaults and encroachments of all persons in times of exigency, where immediate appeal cannot be made to the laws, and relief afforded."
~Doctrine and Covenants 134:11