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Gun Research Declassified Visit to Mauser-Werke 2022. Page 52; The Ultimate in Rifle Accuracy By Glenn Newick · 1990; Gunsmithing at Home: Lock, Stock & Barrel - Page 79, John E. Traister · 1996; Gunsmithing Modern Firearms: A Gun Guy's Guide to Making Good Guns Even Better, Bryce M. Towsley · 2019; Gunsmithing - Page 176, Roy F. Dunlap · 1963
A squeeze bore, alternatively taper-bore, cone barrel or conical barrel, is a weapon where the internal barrel diameter progressively decreases towards the muzzle resulting in a reduced final internal diameter.
The only significant feature the weapon had in common with anti-tank rifles was a lack of elevation and traverse mechanisms—the light barrel could be easily manipulated manually. The squeeze bore design was based on a tapering barrel, with the caliber reducing from 28 mm at the chamber end to only 20 mm at the muzzle.
Conversions for rifles and carbines of larger caliber, such as the AK-47 or Thompson submachine gun include a rifled insert barrel extending beyond the length of the chamber. [ 9 ] [ 10 ] One exception to the use of a special lightweight bolt was the Colt Service Ace , offered as a complete pistol or as a conversion kit for the M1911.
While standard rifle barrels taper from breech to muzzle, high precision rifles will often use a barrel with far less taper, called a heavy barrel, sometimes leaving the barrel cylindrical all the way to the muzzle, called a bull barrel. Either technique greatly increases the stiffness of the barrel by enlarging the average diameter, but this ...
A muzzle brake or recoil compensator is a device connected to, or a feature integral (ported barrel) to the construction of, the muzzle or barrel of a firearm or cannon that is intended to redirect a portion of propellant gases to counter recoil and unwanted muzzle rise. [1] Barrels with an integral muzzle brake are often said to be ported.
Light tank Mk VII Tetrarch Mk I with Littlejohn adaptor.. The Littlejohn adaptor was a device that could be added to the British QF 2 pounder (40 mm) anti-tank gun. It was used to extend the service life of the 2-pounder during the Second World War by converting it to squeeze bore operation.
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