In fact, as one poster stated, the 222 Remington is inherently accurate and does well with many loads.
Powders that have worked well include H4198, H322, Benchmark, H4895, BLC-2, IMR 4198, IMR3031, IMR4895 IMR4320, IMR4064, W748, Alliant RL7, RL10X, RL12, Vihtavuori N133, 135, 140,
Ramshot TAC, Accurate 2230, 2460.....I'm sure there are others...the list is quite long.
Most 222 Rifles I have owned shot the 55 grain bullets just fine.
This is a great chambering!! Low noise levels, great accuracy, long barrel life, frugal on powder..what more could one want?
Regards, Eagleye.