Method of forming cartridge chambers in firearm barrels

Details Method of forming cartridge chambers in firearm barrels Method of forming cartridge chambers in firearm barrels

1980-01-16

1982-11-23

Culver, Horace M.

Metal working

Bias cutting of tubular stock

72370, B21J 1308

Patent

active

043598102

ABSTRACT:
Method of forming a cartridge chamber in the bore of a firearm barrel, which comprises driving into the bore of the barrel from the butt end thereof a mandrel of the surface configuration of the peripheral wall and mouth of the cartridge chamber, whereby the bore metal is squeezed into close form-fit with the mandrel, and then retracting the mandrel from the barrel bore.

REFERENCES:
patent: 41669 (1864-02-01), Baker
patent: 983849 (1911-02-01), Wales
patent: 1461129 (1923-07-01), Loomis
patent: 2383356 (1945-08-01), Walker
patent: 2464323 (1949-03-01), Lee
patent: 2663410 (1953-12-01), Kessler
patent: 3753365 (1973-08-01), Kralowetz

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