The M68 is an American 105 mm tank gun. It uses British-designed L7 gun tube and cartridges with an American-designed mount, breech assembly and recoil mechanism.

The 105×617mm (4.1 inch), also known as 105×617mmR, is a common, NATO-standard, tank gun cartridge used in 105 mm guns such as those derived from the Royal Ordnance L7.

The Royal Ordnance L7, officially designated Gun, 105 mm, Tank, L7, is the basic model of the United Kingdom's most successful tank gun. It is a 105 mm L/52 rifled design by the Royal Ordnance Factories, intended for use in armoured fighting vehicles, replacing the older QF 20-pounder (84 mm) gun mounted on the British Centurion tank. [1]

The M68 is an American 105 mm tank gun. It uses British-designed L7 gun tube and cartridges with an American-designed mount, breech assembly and recoil mechanism.

Compared to the 120mm Smoothbore gun now in use, or really to any other tank cannon, the 105mm has 3 great advantages that no other gun can match. They are 1) ammunition stowage, 2) accuracy, and 3) variety of ammunition.

105 mm M68 T1 Tank Gun Weapon System; 105 mm M68 T1 Tank Gun Weapon System Technical Specifications: Diameter: 105 mm: Total Weight: 1200 kg: Barrel Weight: 760 kg: Breech Ring Weight: 320 kg: Breech Weight: 50 kg: Total Length: 5550 mm: Barrel Size (Length) 5346 mm: Groove: 28: Number of Fire: 6 rounds/min:

The 105-mm M68 gun is the U.S. version of the British L7 gun and is the main armament of most U.S. main battle tanks (MBTs). It is also the main armament of the Israeli Merkava Mk 1 and Mk 2 MBT.

The M68 rifled gun is basically the barrel of the British Royal Ordnance 105 mm L7 gun altered to accommodate a revised drop block breech mechanism.

The 105 mm M68 is an American tank cannon that saw widespread use among American armoured fighting vehicles during the Cold War. Based off the British 105 mm L7 gun, the 105 mm M68 shares many characteristics as the British counterpart such as the access to the HESH (High-Explosive Squash-Head) ammunition.

An unfired 10Smm M68 cannon was instrumented with special removable I thermal and erosion sensors capable of distinguishing differences between charges using only a few shots.