Jump to navigation Jump to search. The .410 bore or .410 gauge, is the second-smallest caliber of shotgun shell commonly available. A .410 bore shotgun loaded with shot shells is well suited for small game hunting and pest control.What is 410 GA ammo?
410 Gauge Ammo. show category description. 410 gauge or 410 bore is the smallest available caliber in the shotgun family. Generally easy to handle, 410 gauge ammo offers a light load compared to other shotgun rounds making it an ideal round for young shooters looking to hone their skills without developing a habit of flinching upon recoil.