.348 Winchester

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.348 Winchester
.348 Winchester
Type	Rifle
Place of origin	United States
Production history
Designer	Winchester
Produced	1936–present
Specifications
Parent case	.50-110 WCF
Case type	Rimmed, bottleneck
Bullet diameter	.348 in (8.8 mm)[1]
Land diameter	.340 in (8.6 mm)[1]
Neck diameter	.3785 in (9.61 mm)
Shoulder diameter	.485 in (12.3 mm)
Base diameter	.553 in (14.0 mm)
Rim diameter	.610 in (15.5 mm)
Rim thickness	.070 in (1.8 mm)
Case length	2.255 in (57.3 mm)
Overall length	2.795 in (71.0 mm)
Rifling twist	1 in 12
Primer type	Large rifle
Maximum pressure (CIP)	46,000 psi (320 MPa)
Maximum CUP	40,000[2] CUP
Ballistic performance
Bullet mass/type Velocity Energy 150 gr (10 g) 2,890 ft/s (880 m/s) 2,780 ft⋅lbf (3,770 J) 200 gr (13 g) 2,530 ft/s (770 m/s) 2,840 ft⋅lbf (3,850 J) 250 gr (16 g) 200 2,350 ft/s (720 m/s) 3,060 ft⋅lbf (4,150 J) 200 gr FTX 2,630 ft/s (800 m/s) 3,072 ft⋅lbf (4,165 J)
Test barrel length: 24

The .348 Winchester / 8.8x57mmR is an American rifle cartridge. It was introduced in 1936, and developed for the Winchester Model 71 lever action rifle. The .348 was one of the most powerful rimmed rounds ever used in a lever action rifle.^[3]