A friend of mine has a 24" fluted Bushmaster Varmiter & it shoots very well, he hasn't tried as many loads as I have at this point, but I feel it should be a half inch gun, we shall see.
I have a RRA 24" Varmiter with the Wilson Air Gauged barrel, Nat. Match trigger. I will shoot sub half inch groups over & over with the 60gr. V-Max, 75Hor.OTM, 69 & 77SMK. I am talking 5 shot groups with any of these, some groups are smaller & I am VERY pleased. I got rid of my Rem 700VS 223.
Both the Bushmaster & RRA are great, the RRA is heavier(I don't care but some do) but I feel the RRA has a little better barrel but I have no way to prove it.