Further, barrel liners embodying the present invention may be formed as full length liners or as fragmental length liners at the breech end of the gun barrel.
Gun barrel liners embodying the present invention are preferably formed of columbium or columbium alloys, hereinafter referred to as columbium base metal, which term is intended herein to cover substantially pure columbium as well as columbium alloys.
Barrel liners embodying the present invention, however, obviate all of these difficulties in that they have demonstrated lasting qualities and long life as well as resistance to corrosion, erosion and distortion.
In accordance with the present invention, barrel liners may be made for assembly with a gun barrel and have a hardness within the aforementioned range, by forming a substantially tubular member of columbium base metal,
Designed in the 1950s by Eugene Stoner of Armalite, the AR-7 Explorer was based heavily upon Stoner’s earlier design, the AR-5. The AR-5 was a take-down bolt action rifle chambered in .22 Hornet like the earlier M4 survival rifle and the M6 Aircrew Survival Weapon’s upper barrel. The AR-5 was never issued to the Air Force because they had plenty of M4’s and M6’s in inventory, but the tooling allowed Armalite to develop the concept as a semiautomatic .22 lr rifle for civilian sales. Almost all of the parts except the barrel liner and take down screw are aluminum.
Yay! You're now following barrel liner in your .
Even on rifle barrels. The .22 rifle barrel liner shown in the video is thick enough to contain propellant pressures, but it would flex like crazy. If a tensioner was used to address this, it would make an ok barrel.
May 6', 1969 R. F. WEHRMANN ETAI- GUN BARREL LINER Filed March 15, 1959 United States Patent O 3,442,172 GUN BARREL LINER Ralph F. Wehrmann, North Chicago, and Roy H. Lorenz, Arlington Heights, lll., assignors to Fansteel Inc., a corporation of New York Filed Mar. 13, 1959, Ser. No. 799,386 Inl. Cl. F411` 17/08; 'C22c 31/00 U.S. Cl. 89-16 6 Claims The present invention relates to barrel liners and a method of making the same. More particularly, the invention relates to barrel liners formed of columbium base metal and a method of making the liners and providing them with improved life qualities.
Redman barrel liners have also been used for making new gun barrels, such as the replacement barrel for the Ruger 10-22. These barrels are manufactured by injection molding and carbon wrapping making them a lightweight target barrel.Description:Design your own barrel fountain! These durable liners fit most half-whiskey barrels. Barrel liner with spillway allows water to cascade to second barrel. These liners have reinforced sides that allow them to be used without barrels too.Design your own barrel fountain! These durable whiskey barrel fish pond liners fit most half-whiskey barrels. The barrel liner with spillway allows water to cascade to a second barrel. FIGURE 2 is a longitudinal sectional view of a barrel liner for a .30 caliber gun in place in the barrel thereof and mounted on an exemplary form of stock; and Heretofore, particularly in .30 caliber and .50 caliber rapid re units such as machine guns, substantial difficulties have been experienced with the life of the barrel. Barrels have been made of steel or stellite with and without provision for liners. These barrels often had a life of less than 3500 rounds. After that number of rounds had been fired, the riing in the barrel or in the barrel liner was so eroded or otherwise destroyed so that the projectiles keyholed and suffered substantial muzzle velocity losses with respect to projectiles fired when the barrel was new. The gun barrel 10 shown in FIGURE 1 is a typical barrel for use with the gun mechanism of a .30 caliber or a .50 caliber automatic or semiautomatic gun mechanism. In accordance with this invention, the barrel is provided with a liner 11 which is a full length liner ex tending from the breech end 12 of the barrel to the muzzle end 13 of the barrel. The liner is secured, preferably at least at the breech end 12 of the barrel, by any convenient means such as a threaded connection or a slotted flange connection. The barrel and liner, however, may be assembled by any convenient means. An example of this might be to place an unriiied liner in a slightly oversize barrel and draw or swedge the barrel and liner simultaneously to provide rifling lands and grooves in the liner and to assemble the barrel and liner and secure the same together.