I have a McGowen in .260 Rem and a Douglas in 6mm Rem, the Douglas was chambered by SSS. The Douglas is without a doubt more accurate, it can shoot in the .3's if I do my part, the .260 is will only shoot in the .5's. On the other hand the McGowen only cost me $320 or so from NSS, which is not much more than the cost of the bare Krieger and Rock blanks that I have ordered.