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Reloading Berger Bullets


who polishes inside of thier necks?

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Unread 05-18-2008, 07:30 AM
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Join Date: Nov 2005
Location: south central pa
Posts: 215
who polishes inside of thier necks?

light bulblight bulblight bulbi once was visiting a fellow benchrest shooters home and saw him cleaning/polishing the inside of his case necks with steel wool wrapped around a bronze bore brush.never really thought about that untill the other day.i looked at the inside surface condition of my case necks under a microscope.interesting to say the least.they look like they were sandblasted with little tiny imperfections in the surface.so i chucked a old bronze brush in a drill wrapped some fine steel wool ariund it and polished the inside of a neck.checked again under microscope.smooth wall surface.now i see why this fellow was doing this,to get consistant bullet pull from each case from shot to shot.does any one else do this ?jasonlight bulb
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Unread 05-18-2008, 08:45 AM
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Join Date: Nov 2005
Location: Texas
Posts: 1,845
IMHO pretty much a waste of time. The inside of my necks get polished by a certain extent by the mandrel that goes into the neck during turning operations.

Doing that by hand only invites inconsistency, which is bad JUJU for accuracy.
The Truth Is Not Always Good For Business!!
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Unread 05-18-2008, 08:56 AM
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Join Date: Jun 2006
Location: Shangri-La
Posts: 964
Mandrels from turning can leave lots of ridges and burrs

I polish the inside of the necks with steel wool but use a Lee Zip Trim, easier to get a tight fit on the steel wool and hold the case without hand fatigue

By leaving a larger diameter of steel wool you can also take the burrs off the inside and outside neck chamfers.

Does it make a difference? Who knows? I use the Lee Collet so I don't have any lube in the neck and the necks come out pretty clean

If you can read this, thank a teacher.......if you are reading this in English, thank a soldier.
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Unread 05-18-2008, 10:41 AM
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Join Date: Mar 2007
Posts: 430
Many just manually run the brass over a brush, bronze or nylon, to knock out burned powder residue. Do what suits your needs.
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Unread 05-18-2008, 10:45 AM
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Join Date: Jan 2004
Location: Blackfoot, Idaho
Posts: 8,871
For my needs I just hit the necks w/ nylon brush in a drill motor.
I may be the slowest guy on the mountain . . . . but . . . . I'm on the mountain!
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Unread 05-18-2008, 06:02 PM
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Join Date: Sep 2005
Location: WV
Posts: 139
I give them a good brushing. Seating resistance seems to be more uniform.
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Unread 05-19-2008, 02:22 PM
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Join Date: Dec 2007
Posts: 47
I just brush mine out.
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