Remington
3, including the one in the chamber.
5 in a semi automatic shotgun, no limit on pump shotguns
Anywhere from 2-9
I have a Remington model 31 in 16ga and i shoot regular low brass shells in it and it does fine, it would depend on the type of game you are hunting. High brass shells are for more power and longer range.
Take it to a gunsmith to be sure.
Try different ammunition, verify the shotgun is put together properly.
If it's a 16 gauge shotgun, the shell length is 2 3/4 inches.
The 1187 is made in USA, the Bakail is made in Russia.An 11-87 is a shotgun designed by remington to shoot 31/2 in shells. The bikail is a russian made shotgun that shoots the same shell. Remington bought Bikail and is now selling the guns under there name. Bikail has a chrome lined barrel the 11-87 does not
Most commercially available shotgun shells come in boxes of 25.
Air soft shotgun shells are the size of 12 gauge shotgun shells.
Find someone who reloads shotgun shells. They will relieve you of your inventory.