| 摘要 |
Shortened shotshells having a reduced length that allows one or more extra rounds to be carried in the magazine of a standard shotgun, and having substantially the same ballistic properties as standard shotshells, are obtained by using a reduced length shell casing and replacing the standard wadding with a relatively long double cup-shaped wadding with a first cup that holds the powder and a second cup to at least partly hold the shot. The open end of the first cup extends close to the primer cap. By placing the powder within the wadding and having part of the wadding extend around the shot, the same powder and shot loads may be used with a longer wadding. The longer wadding avoids tilting or tumbling of the wadding and provides a continuous gas seal between the end of the shell case and the barrel entrance across the gap that exits as a result of using the shortened shell case in a gun chambered for a standard length shell. The shortened shells with the double-cupped wadding perform well even in blow-back operated auto-loading actions.
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