Cartridge Hall of Fame: 270 Winchester Ammunition | MidwayUSA
The .270 Winchester, introduced by Winchester in 1925 and initially chambered in the Model 54, is a medium-power centerfire rifle cartridge. Based on the .30-06 case, it offers over 2,700 ft-lbs of energy and remains a top seller, popularized by Jack O'Connor and the Winchester Model 70.









