.270 Winchester

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.

CIP, SAAMI SPECIFICATIONS:
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)

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