Full Length Sizer die vs Collet Neck Sizer die

RugerNiner

April 02, 2008 15:14

I'm getting ready to buy a set of dies and don't know which one is better for my application.
These dies will be used in my KSwiss 31 7.5 x 55.
Which will serve my purpose best?
I'll be using 308 moly bullets.

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  bpost

  April 02, 2008 15:21

  If you neck size only you will reach a point where base expansion will make chambering a issue. It would be best to have a Redding type S neck die with a few different bushings. This is to maximize accuracy potential. Then you would get a separate body sizing die for use about every fifth firing to bring the shoulder and base back to a workable size.

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  JustC

  April 03, 2008 06:32

  the lee deluxe die set has a FL as well as collet die. Once base expansion becomes an issue,..run in the FL die and your right back to "ready".

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  jonk

  April 03, 2008 06:34

  Try what you like but most people with K31s swear that FL sizing is needed, just as in a semi auto, as the straight pull lacks the camming power of a bolt action and neck sized only rounds bind things up.... so I'd go with full length sizing.

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