I can picture an inch of hold on a rabbit, or 2 if I'm game.
I am happier with a centerfire being 2 inches high @ 100 m than 5.8 cm high @ 110 yards...
Cm's are for dress makers anyway.
I have had a cashed up fitter stop by at work with after market parts for his Harley, made in the U.S. metric fine.
Dude at work welded up a Detroit diesel block (big) my punt was unf, turns out it was 16 by 1.5....
The argument we all don't own euro glass hold's water, I can't blame yank's for holding onto fractions (imagine that cost of replacing all the socket sets...)
Finally FK fractions, a thou is only.025 of a mill
My "8thou" cents