Each speed shell will hold a powder charge plus your patched round ball or conical bullet of your choice (including saboted bullets). The shell consists of a heavy walled plastic tube with snap off caps at each end. For use with a round ball one cap can be eliminated as the patched ball will tightly cap one end. Conical bullets which may slip in the tube require the use of both caps. For round ball charges, remove both caps, place patch and ball in end of tube and push to the other end of tube with your bullet starter. Place a measured charge of powder in open end of tube and replace cap. For conical bullets, remove one cap, seat bullet through tube to rest on remaining cap. Place measured powder charge in tube and replace cap. Available in three sizes. .45 cal. No. 34S45X, .50 cal. No. 34S50X, .54 cal. No. 34S54X