Your CCI 200s are entirely fine for the Garand. Just Be certain that You usually seat your primers below flush. I use CCI 34s, but I would not wait for just a next to make use of CCI 200s. I have used BR-two's in 7mm rem mags with very good https://hectorqcole.azzablog.com/31668486/the-greatest-guide-to-cci-200