Re: Mounts on a XCR II 300 RUM
I personally do not like Weaver style bases and rails like that. If I were you I would do what I did when I bought my Remington 700 with a base already on it. Take off the rail and put on a Leupold or Redfield one piece base. These are heavy duty and one piece bases strengthen up the action, there's also no way for the rings to slip when mounted on these style bases. Hope this helps!
Jerry "JUD" B. Bauduin
Shoot small, miss small. Or shoot small and hit small!