#1
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Redrawing Sierra 30 cal 1.155" jackets.
What are members' experiences with redrawing the Sierra 30 cal 1.155" jackets?
I've just started redrawing down to .257 cal using a basic Corbin JRD-1 with pinch-trim, but still comtemplating annealing, washing etc. Just using the little Mitutoyo micrometer I'm measuring 0.0002" maximum wall thickness variance. I was also surprised at how thin the Sierra 30 cal jackets are. Compared to the J4 30 cal 1.200", they are thinner still. Last edited by aaronraad; 05-08-2013 at 01:50 PM. Reason: Randy was right! |
#2
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Quote:
Is the decimal point (0.002" - red, above) misplaced? That is a LOT of wall variation - is it supposed to be 0.0002"? RG |
#3
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OT
Aaron
Used to spend allot of time in my youth re-drawing 5.56 down to .222, what a pain. I would do 200 to 300 at a time. The intensive labor made the term a nickel an hour a reality. The case turning to size would bring tears to an adults eyes but I was a 15 year old kid. I also neck turned same brass with my Forrester attachment all for my Rem 722 in .222. Shot Sierra seconds by the gross, lived 25 miles from Sierra / California. Martin Hull got me the bullets. Stephen Perry Last edited by stephen perry 1; 05-09-2013 at 12:49 AM. |
#4
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Thanks Randy, I'm suddenly less variable!
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#5
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Well, then - that should work! RG
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