miketx
Diamond Member
- Dec 25, 2015
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- #161
Duh, everybody knows what a 9.9 is.Probably a typo. But given the 1000’s of calibers that have existed who’s to say..?
Yeah, that is why I am giving him the benefit of the doubt. Calibers have been named for bullet diameter, black powder charge, year it was first made, and even speed of the bullet.
But, given my lack of experience with 9mm rounds, I thought someone else might know.