Patent ID: 9074832
Filing Date: 2015-07-07
Classification: F41A

Abstract:
1. A device configured for insertion in the barrel of a shotgun for firing a .22 magnum rimfire round of ammunition in the shotgun, the .22 magnum round having a casing, and the shotgun having an action that opens and closes, the device comprising: a carrier defining a bore that receives the .22 magnum round of ammunition; said bore defining a generally conical casing-receiving portion having an entry portion and a neck portion substantially at the opposite end of the casing-receiving portion; said entry portion defining a first diameter, and said neck portion defining a second diameter, said first diameter being greater than said second diameter; and a spring-biased extractor connected to said carrier and being constructed to automatically withdraw the .22 magnum round of ammunition from said bore upon the action of the shotgun being opened.