.45 GAP

.45 GAP
A .45 GAP cartridge.
Type	Pistol
Place of origin	Austria United States
Service history
In service	2003–present
Production history
Designer	Ernest Durham
Designed	November 2002
Manufacturer	CCI/Speer
Produced	2003–present
Specifications
Case type	Rebated, straight walled
Bullet diameter	.452 in (11.5 mm)
Case length	.755 in (19.2 mm)
Overall length	1.070 in (27.2 mm)
Primer type	Small pistol
Maximum pressure (CIP)	19,000 psi (130 MPa)
Maximum pressure (SAAMI)	23,000 psi (160 MPa)
Ballistic performance
Bullet mass/type Velocity Energy 185 gr (12 g) Gold Dot JHP 1,150 ft/s (350 m/s) 543 ft⋅lbf (736 J) 200 gr (13 g) Gold Dot JHP 1,050 ft/s (320 m/s) 490 ft⋅lbf (660 J) 230 gr (15 g) Gold Dot JHP 935 ft/s (285 m/s) 447 ft⋅lbf (606 J) 230 gr (15 g) FMJ-FP 940 ft/s (290 m/s) 451 ft⋅lbf (611 J)
Test barrel length: 4.49 in Source(s): DoubleTap Ammo[1]

The .45 GAP (Glock Auto Pistol) or .45 Glock (11.43×19mmRB) is a pistol cartridge designed by Ernest Durham, an engineer with CCI/Speer, at the request of firearms manufacturer Glock to provide a cartridge that would equal the power of the .45 ACP, have a stronger case head to reduce the possibility of case neck blowouts, and be shorter to fit in a more compact handgun. The .45 GAP is the first commercially introduced cartridge that has been identified with Glock.