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Copper Peeling From Bullets During Seating?

 
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  #1  
Old 09-17-2009, 07:06 PM
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Copper Peeling From Bullets During Seating?

On many of my handloads copper has flaked/scratched off the bullet during seating- it is deposited right on the mouth of the case. Am I doing something wrong? My gut says that the flakes are going to end up in my barrel or chamber and I am going to have a harder time cleaning, also this can not help accuracy. I have tried resizing with 2 different dies, though my finished case neck size is a little bit narrower than the books say it should be. what gives- is the brass shrinking back to a size much smaller than it should be?
Thanks.
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Old 09-17-2009, 07:11 PM
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Re: Copper Peeling From Bullets During Seating?

Trout,

Are you chamfering the inside of the case necks?

Chris
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Old 09-17-2009, 07:11 PM
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Re: Copper Peeling From Bullets During Seating?

Did you chamfer the case mouths?
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Old 09-17-2009, 09:58 PM
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Re: Copper Peeling From Bullets During Seating?

Yes I chamfered but it is nickel plated brass so perhaps I did not use enough elbow grease?
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Old 09-17-2009, 10:40 PM
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Re: Copper Peeling From Bullets During Seating?

Quote:
Originally Posted by Troutslayer View Post
but it is nickel plated brass
Is it a flat base bullet? I ask because I had the same problem with my 357s before I seated my expander die slightly deeper; I was using nickel plated brass at that time.

I just looked at midwayusa.com and they have some for high powered rifle calibers also... If that is applicable. You might have to crimp it slightly after seating it though.
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Old 09-18-2009, 02:15 PM
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Re: Copper Peeling From Bullets During Seating?

I have had the same thing sometimes w/ boat tail bullets. I just ignore it (i do wipe off the little shavings) and shoot. I haven't noticed it causing accuracy issues but I'm not capable of shooting bug holes either.
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Old 09-18-2009, 03:50 PM
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Re: Copper Peeling From Bullets During Seating?

I use one of these (or a similar VLD chamfering tool) to chamfer all my case mouths...end of bullet shaving problem.

Case Mouth Chamfering - Sinclair VLD Chamfering Tool

I even unscrew the bit from the handle and mount it in a drill press...then just gently press the case mouth straight up on the spinning bit for about 1/3 second. Easy as pie.
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