 The 15-2 increased sales markedly over the earlier models, and were often seen in use with both target shooters and hunters.The Model 44 are large frame models in .44 Magnum with interchangeable barrels, including a 2.5" snubnose barrel.Introduced in 1973, the Charter Arms Bulldog is a relatively inexpensive yet serviceable, no-frills, 5-shot, .44 Special or .45 Colt snubnosed revolver.