Thread: Large Rifle Primers - standard or magnum?
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Old December 4, 2022, 06:52 PM   #15
Shadow9mm
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Join Date: March 21, 2012
Location: Indianapolis, IN
Posts: 3,969
Quote:
Originally Posted by Rimfire5 View Post
The Match primers had a SD of 14.5
The Magnum primers had a SD of 9.7
the better SD with the magnums indicates better ignition and more consistent burn of the powder. Magnums, in this case, were the better choice.
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