Thanks guys!

I know she has an adjustable gas block that's hidden under the upper and I have been told to start off and then work it open in small increments until she functions properly with the specific load. I know my manual has service rifle rounds for the M1 Garand but I don't think they have any for an 8mm Mauser.

Thank you for the links and assuaging my trepidation about the rounds.  :)