I was just looking at the 14.7" 6.8 barrel. Is there any difference between these and the barrels you have been selling for awhile? Also, you claim the barrels have "hand polished" bores. Does this mean they are lapped free of cutter marks or just that you've made the bore "shiny"? Lastly, the 6.8 is listed as a 1:11 twist SIX groove rifling. Is this correct? With the big discussion of more grooves creating more pressure its got me curious.












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