The 7.65×53mm Mauser (designated as the 7,65 × 53 Arg. by the C.I.P.) is a first-generation smokeless powder rimless bottlenecked rifle cartridge developed for use in the Mauser Model 1889 rifle by Paul Mauser of the Mauser company. It is also known as 7.65×53mm Argentine, 7.65×53mm Argentine rimless, 7.65mm Argentine, 7.65×53mm Belgian Mauser or 7.65mm Belgian (in the United States) and 7.65×53mm Mauser (in Belgium).
RCBS Precision dies are designed to deliver superior performance plus easy adjustment and operation. Sets feature: sizing dies with tolerance twice as stringent as typical firearms and ammunition for consistent chambering round after round. Fine body knurling for easy, non-slip adjustment. Hardened die bodies. Easy, adjustable expander-decapping unit locks in place, eliminating slippage. Three-piece expander/decapping unit lets you replace the decapping pin in a snap. Includes: full-length sizing die and seater die. Shellholders sold separately.