With the .338 RCMs it doesn't take much modification to hold 4 in the mag and feed reliably.
Yep, I was the one that came up with the modification. A simple follower flip, and a slight re-profile of the bottom of the ejector, so it won't bind on a case head. The rifle is named Elmer, it's short, light, simple, superior and feisty as all git-out:
https://www.24hourcampfire.com/ubbt...62583/re-ruger-338-rcm-4-rounds-down-mod
