In my 14" 223, I can hold about a 1 1/2in group, and almost any bullet I've tried has done that. I'm more accurate with my heavy varmint rifle in 223 so bullet choice gets picky but thats for .2 vs .4 accuracy. For the contender, just my experience, I like the 52gr match kings, Bergers work great too but are pricey, and can't go wrong with a V-Max. Heck, thinking about it, the 45gr blitzkings did the best all-around performance on game and paper. I like to use either H335 or Varget.