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Old November 2, 2013, 06:53 AM   #9
HiBC
Senior Member
 
Join Date: November 13, 2006
Posts: 8,274
Agreed its about pressure/obturation/seal.Weatherby has a tradition of freebore.Add a boat tail bullet,maybe some throat wear.

Bullet cylindrical dia is free of the case neck before obturation.Pressure has a path between the case and the chamber wall .
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