full length resizing vs neck resizing

shoff14

February 16, 2009 13:14

Whats the advantage of doing one or the other? It seems to me that you can get away with only neck sizing after you have formed the case to your chamber. Is this the correct way of thinking?

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  JustC

  February 16, 2009 15:46

  neck sizing doesn't work the case body and shoulder since it only is sizing the neck. This greatly extends case life and makes case-head seperations far less likely.

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  5mmgunguy

  February 16, 2009 16:11

  Yes you are correct. But even when you shot them in the same gun with just neck sizing it will eventually get to the point where you will need to full length size them.

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  jonk

  February 17, 2009 04:01

  Neck sizing is great for bolt action guns; turnbolts I mean. Also fine for break open single shots assuming you have strong arms.
  
  For semi autos, straight pull bolt actions, and lever actions though, you lack the camming action to easily seat the loaded round once it gets 'tight' in fitting the chamber.
  
  I keep a set of both dies on hand. I neck size for the bolt guns, maybe every 10 reloads or so full length.
  
  As mentioned, once fireformed, that case will only fit the gun it was fired in reliably. It MIGHT fit another but don't count on it, w/o full length sizing.

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