Loyalist Dave
Member
Hey folks, how does the ATF determine the "bore" of a firearm is over .50 inches, and is therefore prohibited without NFA approval of the owner? Is it measured at the muzzle? I ask as somebody suggested that Taurus take their newest monstrosity in "28 Gauge" and taper the bore from say .60 at the forcing cone to .50 at the muzzle, and at the same time offer a short shell with a .495 slug, as well as a multi-ball load with say 3 .490 lead round balls. A shot column fired from a standard shell would compress as it reached the muzzle, but the slug or round ball would sorta rattle a bit then calm down as they reached the muzzle. Just wondering.
LD
LD