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Old 11-24-2007 | 09:43 PM
  #19  
HEAD0001
Nontypical Buck
 
Joined: Aug 2006
Posts: 3,192
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From: Rivesville, WV
Default RE: Neck Sizing with a Full Length Die

ORIGINAL: BigBob .30-06

eld,

A partially resized case that won't chamber is not a rare situation. I've experienced it and from the posting on other web sites, quite a few others have as well.

The problem arises when a full length sizing die is raised in an attempt to neck size only. The portion of the die that normally contacts the shoulder of the case no longer does so. If the body of the case is contacted and that portion of the case is reduced in diameter the squeezing of the case actually extends the length of the normal head space measurement. This is what creates the situation where the case will no longer allow the bolt to be closed and the case chambered.

I've been a very active hand loader for fifty-five years with rifle, pistols, revolvers and shotguns. I have also taught many other to reload. A good friend of mine, who had approximately forty years experience.. Until his death about a month ago, we were always on the phone with one another seeking answers to questions that had arose. So I am still learning. The fact that I have close to sixty books that deal with firearms and hand loading is a constant help. The fact that we can come on a site, ask questions and try to help others who have problems in my opinion is the best reason for the INTERNET existing. I really don't think arguing or insults help anyone.

I hope all of you and yours have a joyous holiday season.
I may be wrong, but it is my opinion that the expander ball could be doing this when you pull it back through the neck. I use the Sinclair sizing mandrel to eliminate the shoulder problem. I also use sizing wax inside of a cleaned(tumbled) neck. Tom.
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