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7mm br

wheelgun7360

Silver $$ Contributor
hey guys got a ? on a 7mm br reamer. does anyone know the neck size on a standard reamer?? i'm thinking it is .310. thanks allen
 
wheelgun7360 said:
hey guys got a ? on a 7mm br reamer. does anyone know the neck size on a standard reamer?? i'm thinking it is .310. thanks allen
Click to expand...

CIP/SAAMI give minimal chamber neck dimension of .309 at front and .310 rear

R.G.C
 
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