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308 Norma Magnum

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07 December 2010, 04:32
Magnum308
308 Norma Magnum
Any one know the "trim to" length for cases in 308 Norma Mag?


Only accurate rifles are interesting
07 December 2010, 05:27
ramrod340
A lot of manual call it 2.559". I'm lazy and call it 2.56". My caliper has trouble measuring .001 at times. Big GrinYou can trim it shorter if you don't want to fool with triming as often.


As usual just my $.02
Paul K
07 December 2010, 05:44
Jim C. <><
quote:
A lot of manual call it 2.559".

Correct. "Trim to" length is anything you want it to be but the normal suggestion is to trim off 10 thou at the most.

If you carefully adjust your sizer so the shoulders don't get set back from fired length the cases will stretch very little even with repeated firing and resizing.