In shot gun catridge, the gun powder is separated from pellets by a flat felt discussing called
In shot gun catridge, the gun powder is separated from pallets by a flat felt discussing which is called Wad. The wad may be made up of paper or plastic. The wad acts like a piston driving the pellets in a bunch. Ref: FORENSIC MEDICINE AND TOXICOLOGY Dr PC IGNATIUS THIRD EDITION PAGE 139
Guage
Primer
Wad
Anvil
Miscellaneous