Impossible to answer without knowing the type of gun.
Yes.
pellets, powder
Yes. The gun powder is contained in the shot shell.
yes they are reusable
Depends wat type of gun
Snap caps are by the size of the shell, not the make of the gun.
the gun shot gandhi,was beretta M1934,semi automatic pistol
Depends on the gauge of the shell. The smaller the number, the bigger the shell. A 12 g shell is ABOUT 3/4 of an inch in diameter.
yes alot. you might want to look up "trench gun"
Could be any of them as the "00" does not denote caliber, but the size of the shot contained in the shell.
all depends on the load it varys
He used a Remington 870 Police Magnum.