cased ammunition

See bullet, full metal jacket

early fixed ammunition

A patched ball is a form of early fixed ammunition that used paper as a gas seal for the projectile.

muzzleloading

A patched ball is a muzzleloader projectile (spherical or conical) using a patch (cloth, paper, or other) as a gas seal.

 

Footnotes / Sources:

“Glossary ⇒.” Sporting Arms and Ammunition Manufacturers’ Institute. Ed. SAAMI’s Technical Committee. Web. 15-18 Jan. 2011.