I've used Speer bullets for over 40 years. They shoot like gangbusters in my old .222. It simply loves their 50 and 52 grain bullets with a variety of powders. Most primers work well also, so I guess I'm doubly blessed.
The all time best loads are:
WW brass, match prepped, RP 7 1/2 primer, 21.0 of RL7 and the 50 grainer at 2.130". One hole groups at 100.
WW brass, match prepped, CCI 400 or BR4, 24.0 of BLC2, 52 grain HP, 2.130".