Thanks cayugad. I'm going to edit my original post. What I ment was, if the CR is the thinnest, what would be the next thickest size.
What I'm leadingto is the green CR and a .430 xtp fit nice in my Omega over 777. Very accurate.Bought some B209 and read the threads stateing it needs a tight fitting sabot to work right. So,,,,if the CR is not tight enough, looking for next size up.