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bore axis

The bore axis of a firearm is the longitudinal axis through the geometric center of the gun barrel. In a rifled barrel, the projectile (bullet/ball, pellet or slug) will spin around the bore axis as it goes through the barrel.
Boresighting is a process of placing one's line of sight down along the bore axis.

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  1. teflon6string

    Need Some Good Dope! (for a friend)

    Got my own numbers ("dope") basically sorted out for .223 and 5.56 zeros at 36/300yd and 50/200yd. Close enough to put nice groups on paper near and far. Still deciding which I like best. Got a buddy who's no slouch with pistols, but he's kinda new to rifles with red dots. I'm hoping to help...
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