The pictured revolver could be any large bore pistol, but I chose this one as an example
Type: Double Action
Chamber: .357 magnum (Trooper mk.V, King Cobra); .44 Magnum and .45LC
(Anaconda)
Weight unloaded: differs with models and barrel lengths
Length: differs with models and barrel lengths
Barrel length: from 2 to 8 inches (51 - 203 mm)
Capacity: 6 rounds
The Mk. V revolvers from Colt company, such as Trooper Mk.V, Lawman Mk.V, first appeared in 1982, as an improved versions of the earlier Mk.III revolvers with same names. The improvements were not that radical, with major attention done to the trigger group: the main spring became longer, while the hammer path became shorter. This resulted in shorter lock time and helped to improve accuracy. Other improvements were less significant and mostly regarded to the manufacturing process.
King Cobra revolver had been in production since 1986 and discontinued in late 1990s. It was technically similar to other mk.V revolvers, and can be described as direct successor to the Trooper Mk.V. King Cobra featured more modern design with full length under barrel lug and solid top barrel rib. Sights were fully adjustable. All King Cobra revolvers were made from stainless steel. Like the earlier Trooper revolvers, the King Cobra is an all-around, versatile gun, suitable for sport, duty, self defense and even hunting.
Anaconda revolver first appeared in 1990, and had been officially discontinued in 1999, along with many other Colt models, but brought back in 2001. Technically, the Anaconda is similar to the King Cobra, but has bigger frame and cylinder to accommodate more powerful cartridges, such as .44 Magnum and .45 Long Colt. The Anaconda revolvers featured 6 or 8 inch barrels with vented top ribs, full length under barrel lugs and adjustable sights. Anaconda revolvers are made from stainless steel. Some Anaconda revolvers in .44 Magnum were manufactured with factory ported barrels, to improve the control over the recoil. The Anaconda revolvers are intended primary for sport shooting and hunting, being too big and heavy for regular duty carry.