Center-x seems to be the go-to.
Mine likes the pistol match special and long range match. Doesn't like the slower rifle match or standard+. Also doesn't like the high velocity match.
That said, my b14r will do .25-.4" at 50 with ammo it likes, and .5-.75" with stuff it doesn't like so much.
I keep using lrm in matches because it does very well for me out to 400, and I can't find center-x locally.