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Neck turning ?'s

 
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  #8  
Old 08-30-2010, 08:14 PM
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Join Date: Dec 2009
Location: Columbus Ga
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Re: Neck turning ?'s

Turn new brass. If I didnt mine would also not fit.
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  #9  
Old 08-31-2010, 10:59 PM
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Posts: 5,614
Re: Neck turning ?'s

Quote:
Originally Posted by groper View Post
my question is... can a tight neck clearance of .003 or less (loaded round under chamber neck diameter) cause poor ES issues?
I consider .003 less than the chamber to be a minimum and you should not make it any
tighter or you may start producing higher pressures .

The neck tension can effect SDs but you wan't to give the neck room to expand and
release the bullet. I set the loaded neck clearance at .003 to .004 for most rifles if the
person reloads and turns the necks. If it is going to shoot nothing but factory ammo
then .005 to .006 thousandths is nessary because of varying neck thicknesses.

ON dangerous game rifles I recomend .007 to .008 to make sure you can chamber a
round at the worst time with little chance of a jam.

J E CUSTOM
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  #10  
Old 11-02-2010, 04:34 PM
tlk tlk is offline
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Re: Neck turning ?'s

OK so I have a question: my new laupua brass (30-06) will not fit on the mandrel of my Forster turner - the brass is WAY too tight. I have the right mandrel/shaft on the turner, so where to now if I am to do the turning before shooting? The only thing I can see is to run it through a die with an expander ball or something, but I wonder if that would cause more problems that it would solve.

Out of curiosity I used my Lee collet die as a pin guage as the decapper is .3055 - this brass is tighter than this as it is an issue to get it to feed into the case mouth. It takes a little force.

The turner mandrel is .306 OD, confirmed. I have tried case lube, Kroil and Imperial wax, all to no avail - the brass will stop and stick right about the cutter.

Advice?

Last edited by tlk; 11-02-2010 at 05:49 PM.
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  #11  
Old 11-02-2010, 06:10 PM
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Location: NC, oceanfront
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Re: Neck turning ?'s

You must expand the necks with a matched mandrel that will leave the necks at the correct size for the turning mandrel.
This is part of any turning system.
Well, actually, it appears Forster does not include this with their turners.

Go to Sinclair, and pick up a REAL neck turning system.
SINCLAIR INTERNATIONAL : Sinclair Premium Neck Turning Kit -
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  #12  
Old 11-02-2010, 06:34 PM
tlk tlk is offline
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Re: Neck turning ?'s

Ok Mike, gotcha. Holy crap, that Sinclair is expensive!!!

In the meantime, what is the method to get around this? What should I have gotten and be using before turning necks on the Forster?

Last edited by tlk; 11-03-2010 at 10:07 AM.
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  #13  
Old 11-03-2010, 12:08 PM
tlk tlk is offline
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Re: Neck turning ?'s

Help...anyone? What step/tool did I leave out?

Thanks.
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  #14  
Old 11-05-2010, 07:24 PM
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Location: New York, NY
Posts: 216
Re: Neck turning ?'s

I would be curious to this as well. what are the steps that you all use from start to finish to properly neck turn???
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