I have the Havak Pro HP1 in 6.5 CM. Within the first 40 rounds it easily shot sub .5 MOA with factory match ammo, both FGMM with 140 bergers and hornady 147 ELDMs. I had two groups less than .30” at 100. I can only speak for my rifle but it’s definitely accurate, especially considering the barrel wasn’t even broken in. I’ve heard nothing but great things about rock creek barrels.