I have a w. Moore Double Barrell 8 ga. with Hammers. Very Old. 850-742-0288 Don, or 870-565-5985 Larry
It is difficult to find even 10 gauge shotgun ammo today. I have my doubts if 8 gauge shotgun ammo is even made any more, but corrections welcomed.
Remington makes a industrial 8 gauge kiln gun.
A person is able to buy a 12 gauge shotgun in a gun's store or a store where equipment for hunting is sold. One may also buy a shotgun in an exibition show where the law permit it.
Yes, it is larger, the smaller the gauge the larger the bore i.e. 3 gauge is larger in diameter than a 8 gauge or a 12 gauge.
Market or kiln gun
Federal law says 18
mossberg makes a pink shot gun, and remmington makes a 20gauge pink shotgun
a few hundred to multiple thousands depending on the usuals