Yes, the Medusa is one.
Ammunition shelf's were where the soldiers kept their ammunition and guns.
You can shoot them in a .357 Magnum revolver, but that's about it.
It depends on the gun. The question is a little to vague.
The Glock pistol in caliber .45 GAP.
You need to consult your owner's manual. Some BB guns can shoot pellets, but some cannot.
No. Different types of ammunition for different types of guns. There's no "one gun" that can fire all types of ammo.
It actually a type of ammunition. Instead of the firing pin smacking the center of the igniter cap, the rimfire ammunition is hit at the base. It is basically a wider percussion cap so you can not shoot high caliber bullets from them and they are only a one time use.
The Tokarev and Mauser "broomhandle" pistols were made in that caliber.
No. People just modify Nerf toy guns to look like real guns. They cannot shoot real ammunition.
I shoot the pests at my house w/ pellet guns, so no one know. But good guns for rodents/ gophers are 22 rifles, and small caliber guns. I advise pellet guns because they aren't loud but can kill rodents easily.
7.62 mm (or 30 caliber) and 5.56 mm (or 223 caliber) are common rifle cartridges. Pistols, machine guns, and artillery will of course be different from these.
There are thousands of different cartridges for guns in different calibers. Technically, caliber refers to the diameter of the inside of the barrel.