Bonz: I have 6 Varmint Rifles in caliber 222 Remington these days.
I love this caliber.
Two of these Varminters use the wonderful 52 grain Berger MEF's (I refuse to use the wonderfully accurate 52 grain MatchKings as they are hard as nails and VERY prone to ricochet!).
Two of these Varminters use Nosler 40 grain Ballistic Tips.
And two of these Varminters use Sierras wonderful 50 grain Blitz bullets!
H 322 and IMR 4198 powders are my Rifles favorites.
Best of luck with your 222!
Hold into the wind
VarmintGuy