Cutter, while that is an understandable impression, I don\'t think it is a problem. I drug out a few 22 pistols and took pics of their ejector systems; they all touch the case on the rim.
Actually, I worry a little about lack of a rim recess in either the barrel or the bolt. In the event of a blown case there is no gas handling in place. In a gatling, at least that area isn\'t open near the shooters face.
[attachment=10537:IMG_20180501_125612.jpg] Ruger Mk ii
[attachment=10538:IMG_20180501_125704.jpg] s&w m41
[attachment=10539:IMG_20180501_125728.jpg] High standard supermatic
[attachment=10540:IMG_20180501_125801.jpg] colt huntsman