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Old May 17, 2012, 08:39 PM   #4
Bart B.
Senior Member
 
Join Date: February 15, 2009
Posts: 8,927
Niel Jones makes bushing dies that size only the neck and set the shoulder back. I tried one with different bushing diameters for different neck wall thicknesses on .308 Win. cases. I quit using my Neil Jones die as I got better accuracy with full length sized cases in a die whose neck was lapped out so I wouldn't have to use an expander ball. Redding and RCBS now make full bushing dies that do that.

You'll eventually have to full length size your cases anyway. Their body diameters will get very close to the chamber diameters. As there's no such thing as perfectly round cases or chambers, the case will interfere with the chamber and won't freely center in the chamber shoulder when the firing pin strikes its primer.

I've got the Jones die and a set of .308 Win. bushings from .331" up to .337" (or something like that) in .001" steps. If you're interested, I'll sell 'em for half of retail plus shipping.

http://www.neiljones.com/html/micro_dies.html
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