Year 500 (D) was a leap year starting on Saturday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Patricius and Hypatius (or, less frequently, year 1253 Ab urbe condita). The denomination 500 for this year has been used since the early medieval period, when the Anno Dominicalendar era became the prevalent method in Europe for naming years.
The .500 S&W Magnum (12.7×41mmSR) is a fifty-caliber semi-rimmed handgun cartridge developed by Cor-Bon in partnership with the Smith & Wesson "X-Gun" engineering team for use in the Smith & Wesson Model 500X-framerevolver and introduced in February 2003 at the SHOT show. Its primary design purpose was as a hunting handgun cartridge capable of taking all North American game species.
Noun 1. the cardinal number that is the product of one hundred and five (synonym) five hundred, D (hypernym) large integer Adjective 1. denoting a quantity consisting of 500 items or units (synonym) five hundred, d (similar) cardinal