if your going to stick to BR and or F-class id suggest a shilen select match S-8 contour or CBI match grade,26 to 30" and i think most if not all are 1-8 twist for the 6.5CM...ive had great luck with shilen at 28" but wouldnt be afraid to go CBI as their CS is top notch....Jim at NSS has both in stock i believe.
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