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Nosler brass thickness problems?

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Unread 10-11-2011, 08:32 AM
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Join Date: Aug 2008
Location: Fort Worth, TX
Posts: 158
Nosler brass thickness problems?

I purchased some Nosler 300 RUM brass for my 338 Edge and I have run into some issues. I am curious if anyone else has run into these issues.

First, the primer pockets are so tight my K&M priming tool cannot seat the primers fully into the pockets, leaving them protruding above the case head.

Next issue is neck thickness. I loaded up 10 rounds to break in my new Edge. I loaded a light load 5gr below Shawn C listed load for 250 SMK. During break in I noticed several cases had slight ejector marks, this surprised me because of the reduced load.

Yesterday I drilled and threaded a fired case to fit my Stoney point gauge. Upon inserting a Berger 300g hybrid in the case to take a land depth measurement I found the bullet would not go in the fired Cade neck... WTH??

The in my head came on! I got out my neck thickness gauge and took some measurements of the Nosler case necks .016-.017.

Well .017x2+.338=.372 That explains the ejector marks on the cases fired in my .371 NK 338 Edge!

I measured some Remington 300 RUM brass necks and it come out the typical .014-.015. Has anyone else ran into this "thick brass" and primer pocket issue with Nosler brass?
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Unread 10-11-2011, 09:44 AM
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Join Date: Nov 2005
Location: Texas
Posts: 1,844
Re: Nosler brass thickness problems?

The Truth Is Not Always Good For Business!!

Last edited by Boss Hoss; 11-07-2011 at 08:45 PM.
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Unread 10-11-2011, 10:14 AM
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Join Date: Apr 2011
Location: Mechanicsville, VA
Posts: 439
Re: Nosler brass thickness problems?

I turned the necks on my Nosler brass right away. I have not had any problems with the primer pockets and I'm on my 6th reload on my .243
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Unread 10-11-2011, 02:46 PM
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Join Date: Oct 2007
Location: Tillamook, Oregon
Posts: 416
Re: Nosler brass thickness problems?

My latest batch of Nosler Custom brass for my 300RUM typically measured between .015-.016. Most of the time they were right at .0155. I attempted to to neck turn a couple just to perfect the slight variance and found that the brass out of the box was too tight to even get my turning mandrel in without damaging the i.d. of the brass. I suppose if I sized them first I could turn ok.
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