Quote:
I put the calipers on two Remington shells a very old Kleanbore Express, rolled crimp, that is 2.465 inches long. A later Power Piston Express folded crimp, that is 2.360 inches long.
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I just compared a NSI #4 buck to a Win 00 buck. The NSI with it's roll crimp is an eighth of an inch taller than the Win.