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Old 02-08-2011, 01:00 PM
palmetto99 palmetto99 is offline
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Default Small Pistol Primers vs. Magnum Small Pistol Primers

I usually use CCI #500 small pistol primers for my 9mm loads (4.3 TiteGroup under a 115 grn FMJ). I have some CCI #550 magnum small pistol primers in my stash. What is the difference between the #500 and #550? Should I adjust my load? Thanks folks.
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