If you can- double check to make 100% sure it's still chambered in 8mm Mauser. A good nomber of bringbacks had their chambers reamed to 8mm-06. Which was loading 8mm bullets in opened up .30-06 cases. RCBS still makes the dies and can tell you quite a bit more about the history and how common it was. Seems there were 8mm bullets available in the late 40's and 50's, but the problem of finding brass led to the reamings.
Rednecks... Keeping the woods critter-free since March 2, 1836. (TX Independence Day)
I'm going to use the words "clip" and "Long Colt" every chance I get. It grinds my gears to see new members attacked when we all know dang good and well what's being refered to.