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Jim Watson · February 15, 2006, 09:35 PM

Most new brass is bulk packed and may have dented, dinged, and out-of-round case mouths. I size it as though it had been fired, then deburr the inside of the mouth so it won't scrape up the bullet and the outside so it will chamber freely.

February 15, 2006, 09:35 PM	#4
Jim Watson Senior Member Join Date: October 25, 2001 Location: Alabama Posts: 19,175	Most new brass is bulk packed and may have dented, dinged, and out-of-round case mouths. I size it as though it had been fired, then deburr the inside of the mouth so it won't scrape up the bullet and the outside so it will chamber freely.