Bulk 12ga Ammo.

A 12 gauge(12GA AMMO) shotgun has a bore of about .73 in (18.5mm) and (depending on the model) fires shells measuring from 2-1/2″ to 3-1/2″, with 2-3/4″ being the most common middle ground. Bulk 12ga Ammo shotguns are a useful and popular tools for any defensive or sporting purpose, and the 12 gauge ammo available reflects this versatility.