In this task, you are given a context, a subject, a relation, and many options. Based on the context, from the options select the object entity that has the given relation with the subject. Answer with text (not indexes).

Context: Mauser is a German arms manufacturer of a line of bolt-action rifles and semi-automatic pistols since the 1870s. Mauser designs were built for the German armed forces. Since the late 19th and early 20th centuries, military Mauser designs were also exported and licensed to a number of countries, as well as being a popular civilian firearm., The Winchester Model 70 is a bolt-action sporting rifle. It has an iconic place in American sporting culture and has been held in high regard by shooters since it was introduced in 1936, earning the moniker "The Rifleman's Rifle". The action has some design similarities to Mauser designs and it is a development of the earlier Winchester Model 54., The .458 Winchester Magnum is a belted , straight - taper cased , dangerous game rifle cartridge . It was introduced commercially in 1956 by Winchester and first chambered in the Winchester Model 70 African rifle . It was designed to compete against the .450 Nitro Express and the .470 Nitro Express cartridges found in big bore British double rifles . The .458 Winchester Magnum remains to this day one of the most popular dangerous game cartridges . Most major ammunition manufacturers offer a selection of .458 ammunition for rifles chambered in the cartridge ., The Winchester Model 54 is a bolt-action rifle manufactured by the Winchester Repeating Arms Company. The 54 was the first successful production run civilian centerfire bolt action for Winchester., Subject: .458 winchester magnum, Relation: designer, Options: (A) mauser (B) winchester (C) winchester repeating arms company
winchester repeating arms company