Originally Posted by KQguy
Is there a standard size for case neck thickness?I have two different lot #'s of winchester brass for a 7mmWSM.One batch measures .013"-.014",the other .015"-.016".I neck turned the first batch,and just cleaned them up to .013"(just scraping off the high spots).Before I turn down the other batch to .013",to match the first batch,I just wanted to make sure I am not making a mistake.Normally I only like to just cut about 70% off,but in this case I will most likely be cutting 100%.Is .013" a good size,even though they are currently .015-.016" now?
As long as the neck dia. of the chamber is .003 or .004 larger .012 to .016 is a good wall .thickness.
I like .014 as my standard and order the reamers to fit this with .003 clearance with a
Thicker is better if the chamber will handle it.(Better grip on the bullet and longer life)
The main thing is that they are all the same and turned until they clean up with enough
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