Ruger · Revolver

Ruger GP100 Seven-Shot

Name: Ruger GP100 Seven-Shot
Brand: Ruger

.357 Magnum · introduced 2017

Also known as Ruger GP100 7-Shot, GP100 Seven-Shot .357 Magnum

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About the Ruger GP100 Seven-Shot

The Ruger GP100 Seven-Shot is a stainless-steel, double-action/single-action revolver chambered in .357 Magnum that increases the classic GP100's cylinder capacity from six to seven rounds. Built on Ruger's rugged investment-cast frame with a triple-locking cylinder and transfer-bar safety, it is offered with 2.5-inch, 4.2-inch, and 6-inch barrels, cushioned rubber grips with hardwood inserts, a fiber-optic front sight, and an adjustable rear sight.

The GP100 was introduced in 1985 as a beefed-up successor to Ruger's Security-Six, engineered to withstand a steady diet of full-power .357 Magnum loads. The seven-shot version answered a market that valued the extra round while keeping the GP100's reputation for durability.

Ruger GP100 Seven-Shot specifications

General

Type: Revolver
Firing mechanism: Double action single action
Trigger: Double action single action
Trigger pull: 4.7 kg (10.3 lb)
Calibres: .357 Magnum
Magazine capacity: 7 rounds
Magazine: Rotary magazine

Dimensions

Barrel length: 107 mm (4.2 in)
Overall length: 241 mm (9.5 in)
Height: 140 mm (5.5 in)
Width: 39 mm (1.5 in)
Weight (empty): 1.13 kg (2.50 lb)

Barrel

Rifling twist: 1:19 in (476 mm)
Rifling: Right hand
Grooves: 6

Materials

Barrel: Steel
Receiver / frame: Stainless steel
Stock: Rubber
Finish: stainless

Performance

Muzzle velocity (typical): 400 m/s (1312 fps)
Muzzle energy (typical): 700 J (516 ft·lb)
Effective range: 50 m

History

Introduced: 2017
Production status: In production
Country of origin: US
Designer: Sturm, Ruger & Company

Features

Fiber optic front sight
Adjustable rear sight
Cushioned rubber grip
Hardwood grip insert
Fluted cylinder
Recessed muzzle crown

Safety

Transfer bar
Triple locking cylinder

The seventh chamber is fitted into the same-diameter GP100 cylinder without enlarging the frame, giving the shooter an extra round over traditional six-shot .357 Magnum revolvers. It also safely fires .38 Special and .38 Special +P ammunition.