.325 Winchester Short Magnum

.325 Winchester Short Magnum
WSM and WSSM family of cartridges. From left to right: .223 WSSM, .243 WSSM, .25 WSSM, .270 WSM, 7 mm WSM, .300 WSM, .325 WSM.
Type	Rifle
Place of origin	United States
Service history
In service	Never issued
Production history
Designer	Winchester
Designed	2005
Manufacturer	Winchester
Produced	2005–present
Specifications
Parent case	.300 Winchester Short Magnum
Case type	Rebated-rimmed, bottleneck
Bullet diameter	.323 in (8.2 mm)
Land diameter	.315 in (8.0 mm)
Neck diameter	.350 in (8.9 mm)
Shoulder diameter	.538 in (13.7 mm)
Base diameter	.555 in (14.1 mm)
Rim diameter	.535 in (13.6 mm)
Case length	2.100 in (53.3 mm)
Overall length	2.860 in (72.6 mm)
Case capacity	83 gr H2O (5.4 cm3)
Rifling twist	1 in 10 in (254 mm)
Primer type	Large rifle magnum
Maximum pressure (C.I.P.)	63,091 psi (435.00 MPa)
Maximum pressure (SAAMI)	65,000 psi (450 MPa)
Ballistic performance
Bullet mass/type Velocity Energy 180 gr (12 g) Ballistic Silvertip 3,060 ft/s (930 m/s) 3,743 ft⋅lbf (5,075 J) 200 gr (13 g) AccuBond CT 2,950 ft/s (900 m/s) 3,866 ft⋅lbf (5,242 J) 220 gr (14 g) Power-Point 2,840 ft/s (870 m/s) 3,941 ft⋅lbf (5,343 J)
Test barrel length: 24 in (610 mm) Source(s): Winchester Ammunition

The .325 Winchester Short Magnum, commonly known as the 325 WSM, is an 8mm caliber rebated rim bottlenecked centerfire short magnum medium bore cartridge. The cartridge was introduced by Winchester Ammunition in 2005.^[1][2]

Introduced at the 2005 Shot Show in Las Vegas, NV, it is the largest member of the Winchester Short Magnum family of cartridges. The .325 WSM was intended for the hunting of medium and large bodied thin skinned dangerous and non-dangerous big game animals of Africa, Asia, Europe and North America.^[3]