Ammunition and explosives – Cartridges – Shot
Patent
1990-12-24
1992-12-15
Tudor, Harold J.
Ammunition and explosives
Cartridges
Shot
102448, 102532, F42B 700, F42B 708
Patent
active
051719347
ABSTRACT:
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.
REFERENCES:
patent: 579853 (1987-03-01), Williams
patent: 3208382 (1965-09-01), Foote et al.
patent: 3487779 (1970-01-01), Hendricks
patent: 3656434 (1972-04-01), Curran
patent: 3952659 (1976-04-01), Sistino
patent: 4233903 (1980-11-01), Lage
patent: 4676170 (1987-06-01), Roster
patent: 4679505 (1987-07-01), Reed
"The Silenced QSPR Revolver" Guns & Ammo/Act 1974 page 64.
"Cartridges of the World" by Frank Barnes, 1965 284-294.
"Lyman Shotshell Handbook", First Complete Edition, 1969, pp. 35-52.
"Lyman Shotshell Handbook", 3rd Edition pp. 64-72.
LandOfFree
Shortened shotshell with double-cupped wadding does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Shortened shotshell with double-cupped wadding, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Shortened shotshell with double-cupped wadding will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2094709