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.357sig Headspace

6278 Views 6 Replies 4 Participants Last post by  _The_Shadow
What do you use to verify headspace on your .357sig reloads? Should I get an LE Wilson case gauge from Dillon, Hornady headspace gage, just use the chamber in the barrel to assure fitment?

I've read the Hornady headspace gage can give varying reading and is made of soft aluminum that distorts over time.
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The sizing dies from Dillon and Lee can over size and set the shoulder back too far (on 357Sig) if you screw the sized die down too much. if you have too much headspace you could see a case seperation as the case is worked under pressure during firing.

I use my barrel's chamber to setup the dies for mine also.

Bullet/neck tension is very important as well.
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