Reloaders know Winchester understands the demands of shooters and hunters wanting to develop the "perfect load." You can rest - and reload - assured that every Winchester ammunition component is made to meet and exceed the most demanding requirements and performance standards in the world: Yours.
The 257 Roberts was wildcatted by gunwriter Ned Roberts in the 1920s and introduced by Remington as a factory cartridge in 1934. Based on the 7x57 Mauser cartridge necked down to take a .257-inch bullet, it was probably the first cartridge viewed as a combination varmint and big-game cartridge, the role the 243 Winchester stars in today. Mild in recoil, accurate, flat-shooting, and extremely effective on game, the 257 Roberts is rarely seen in new rifles today but retains a substantial and extremely loyal following. Standard velocity is a 117-grain load at 2780 feet per second, but a standardized "+P" 117-grain load at a very speedy 2940 fps has been available for many years. Many of its dedicated fans use it for elk, but without question it is best-suited for pronghorn and deer-sized game. — Craig Boddington
Symbol: WSC257PU
Caliber: 257 Roberts Unprimed Rifle Shell Cases
Quantity per Bag: 50
Specifications
Manufacturer: Winchester
Manufacturer No : WSC257PU
SKU : 19057
UPC : 020892631922
Warranty : Warranted against manufacturers defects.