The Annoyed Man wrote:Hornady Superformance .223 75 grain Match. Nuff said.
I have shot this accurately at 500 yards at Tacpro, dinging a 2/3 scale IPSC steel silhouette target at will at that distance with my 18" DMR. I posted about that range day a year or two back.
I recommend a 1:7 twist for a 75gr bullet.