70g sbk b/c

If your talking about the 6mm 70gr sierra blitzking, I just did some range drops last spring trying to come up with my own g7 bc. I finally settled on .148 g7 which matched good to 700 yards. I emailed sierra and they said I may be a little bit high but wouldn't give me any numbers. They said they only use their g1 numbers in their infinity program and see no need to use g7.
 
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