I would check the barrel manufacturers website. For example Criterion lists the following info:
http://criterionbarrels.com/productp...20Contours.pdf
Also as helotaxi mentioned the twist is as important as the contour.
I would check the barrel manufacturers website. For example Criterion lists the following info:
http://criterionbarrels.com/productp...20Contours.pdf
Also as helotaxi mentioned the twist is as important as the contour.
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