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Old March 26, 2013, 03:41 PM   #1
buddalo
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Neck up brass

I want to neck up 6.5-284 brass up to 284 winchester brass. Can I just use the 284 winchester die to do this? Or do I need to do something else.

Thanks,

Buddie
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Old March 26, 2013, 05:38 PM   #2
oryx
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I believe you would want a tapered expander that gradually expands the neck rather than just trying to jam a .284" expander into a 6.5mm mouth.
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Old March 26, 2013, 06:45 PM   #3
Icedragon
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Lee's dies have a tapered expander that could be what u need.
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Old March 26, 2013, 09:26 PM   #4
math teacher
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So does Hornady. But before buying anything, why don't you just try it with the die you have.
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Old March 26, 2013, 09:35 PM   #5
Sure Shot Mc Gee
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Before resizing. Consider annealing your brass first.
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Old March 27, 2013, 11:45 AM   #6
F. Guffey
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add the line

Yesterday, 09:26 PM #4
math teacher
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Join Date: February 5, 2012
Posts: 232 So does Hornady. But before buying anything, why don't you just try it with the die you have.

_________________________________________________________________


I agree, (with sure shot McGee and math teacher) or order a special order catalog from RCBS, 1 800 533 5000 for free, then thumb through the catalog, they have a rule #4. Goes something like there is a cut-off date of 1983, before, no tapered expander, after 1983 the expander is tapered. Then there is always the choice of ordering the tapered expander.

BUT!!! I CAUTION THE reloader about necking a case up, I shorten the length of the primer punch/expander plug assemble, meaning I choose not to punch primers when necking a case up, my opinion, that is a bad habit, shorter is stronger and there is less chance the resistance of necking up will bend the assemble.

My

http://www.rcbs.com/downloads/2010_SpecialOrder.pdf

Use the link above until your catalog arrives, or, use the link above.

F. Guffey

Favorite rule? My favorite rule is rule # 1.
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Old March 27, 2013, 10:15 PM   #7
GeauxTide
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I got an expander die with my .338-06 set, but I was expanding .03. Since you're only going .02, see how hard it is after a good graphite lube with your sizer. Might surprise you.
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Old March 28, 2013, 12:40 PM   #8
F. Guffey
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Necking up and reducing resistance to necking up, I suggest a wire brush, I use the RCBS Case Prep center, I lube the brush, it is a JIC thing (just in case there is something in all that dry dust I do not need).

F. Guffey
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Unread Yesterday, 10:15 PM #7
GeauxTide
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Posts: 2,871 I got an expander die with my .338-06 set, but I was expanding .03. Since you're only going .02, see how hard it is after a good graphite lube with your sizer. Might surprise you.
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GeauxTide, did you measure the length of your cases before and again after necking your cases up?

F. Guffey
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Old April 1, 2013, 12:06 AM   #9
buddalo
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Thanks Guys I will try the dies I have first...


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