0.44 Magnum

Type	Handgun/Revolver/Rifle
Place of origin	United States
Production history
Designer	Elmer Keith/Smith and Wesson
Designed	1950s
Produced	1955–Present
Specifications
Parent case	.44 Special
Bullet diameter	.429 in (10.9 mm)
Neck diameter	.457 in (11.6 mm)
Base diameter	.457 in (11.6 mm)
Rim diameter	.514 in (13.1 mm)
Rim thickness	.060 in (1.5 mm)
Case length	1.285 in (32.6 mm)
Overall length	1.61 in (41 mm)
Primer type	Large pistol
Maximum pressure	36,000 psi (250 MPa)
Ballistic performance
Bullet weight/type	Velocity	Energy
200 gr (13 g) JHP	1,282 ft/s (391 m/s)	760 ft·lbf (1,030 J)
225 gr (14.6 g) XPB Lead Free	1,500 ft/s (460 m/s)	1,124 ft·lbf (1,524 J)
240 gr (16 g) Bonded JSP*	1,500 ft/s (460 m/s)	1,200 ft·lbf (1,600 J)
320 gr (21 g) WFNGC HC*	1,300 ft/s (400 m/s)	1,201 ft·lbf (1,628 J)
340 gr (22 g) LFN +P+	1,325 ft/s (404 m/s)	1,533 ft·lbf (2,078 J)
Test barrel length: 7.5" (*6.5") Source(s): DoubleTap Buffalo Bore