Interesting.

I also expect smaller diameter bullets to be not quite as well balanced as larger diameter bullets. I found this to be a general tendency when fooling with a Juenke Concentricity Compatator tool years ago, and it makes sense, as a .0001 variation in diameter (or jacket thickness) is comparatively more in a smaller caliber bullet than a larger caliber.

“Montana seems to me to be what a small boy would think Texas is like from hearing Texans.”
John Steinbeck