I have a Bartlein in 7mm Mauser, 5R rifling, 1 in 8 twist, it's a Chrome-Moly #3 profile.
I could not be more pleased, they were great to deal with, gave me no hassles about shipping to Australia.
It is also the fasted barrel to break-in I have ever had, the first shot showed copper, cleaned it, and it hasn't copped fouled badly since.
David.
