.338 Edge brass prep

justgoharder

Well-Known Member
Joined
Sep 17, 2005
Messages
153
Location
Colorado
any ideas what i'm doing wrong that i get these lines in the brass?
it only happened to about 1 in 10 or so and i didn't even notice until after i had necked up a bunch. the brass was new.

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ROBSTER

Well-Known Member
Joined
Sep 24, 2009
Messages
444
Location
North West,Ohio
I HAVE GOTTIN MARKS SIMILAR TO THAT GOING FROM 7 MM TO 338 AND WAS TOLD TO MUCH LUBE AND TO USE POWERED MICA ON THE INSIDE OF CASE NECK.
JUST MY 2 CENTS WORTHgun)
 
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