2
.270 WINCHESTER CARTRIDGE
.270 WINCHESTER CARTRIDGE
5757 West Custer Street Manitowoc, WI 54221-0217 | p. 1.920.682.4633 • 1.888.337.7853 | f. 1.920.682.6002 | email: [email protected]
CIP, SAAMI Specifi cations:
The .270 was developed by Winchester in 1923
and released in 1925. It was intended as a
chambering for their Model 54. This cartridge is
a necked down .30-06 Springfield and is the
same length as the .280 Remington. The .270
has gained in popularity among hunters and
gun owners.
.270 Winchester
Type: Rifle
Date of origin: 1923
Case Type: Rimless, bottleneck
Neck Diameter: . .308 in (7.8 mm)
Shoulder Diameter: .441 in (11.2 mm)
Base Diameter: .470 in (11.9 mm)
Case Length: 2.54 in (64.5 mm)
Primer Type: Large Rifle
Max Pressure: 65,000 psi (450 MPa)
