22 nosler winds hands down imo. My real world chronograph speeds show me factory 223 55 vmax in a 24" tube to be 3100, Factory 22 nosler ammo to be 3475 in my woa 22" 12 twist , and my 204 handloads are right at 3650 in a 22" bolt gun with a low bc. 35 berger. I am not a fan of light bullets. My 53, 55, and 60 grain loads in my 22, 24 and 26" 22 250's and Swifts are 3400 to 3550. The cci 200's are flat so I know these aren't cold loads.
My very accurate 22 Nosler handloads were only mid 3200's but primers are round and there is room for 2 more grains of powder. I just need to find a hotter accurate load.