The Ruger GP100 is a double-action/single-action revolver chambered in .357 Magnum, built on a satin stainless steel frame with a 6-inch barrel. The full-underlug barrel design adds weight forward, which helps manage recoil from .357 loads. At 45 oz (2.8 lbs) it's a substantial revolver, but that weight is part of what makes it comfortable to shoot over extended range sessions. 
 

Key Specifications 

• Model: GP100 
• Caliber: .357 MAG 
• Action: Double Action / Single Action 
• Capacity: 6 Rounds 
• Barrel Length: 6 inches 
• Weight: 2.8 lbs (45 oz) 
• Finish: Satin Stainless Steel 
• Grip Material: Hogue Walnut with Finger Grooves 
   

Features 

The triple-locking cylinder (front, rear, and crane) locks up tight and stays that way over thousands of rounds. The transfer bar safety prevents firing unless the trigger is fully depressed, so you can carry it loaded with confidence. The exposed hammer lets you cock to single-action for more precise shots when the situation allows. 
 
Adjustable rear sight paired with a ramp front sight gives you a usable precision setup out of the box. The Hogue walnut grip with finger grooves is comfortable and maintains control under recoil. The satin stainless finish resists corrosion without requiring the same attention a blued gun does.

The GP100 in 6-inch satin stainless is well-regarded for a straightforward reason: it's built to take punishment and keep working. Owners who shoot it regularly note that the lock-up stays tight even after heavy use, which isn't always true of revolvers in this price range.

The trigger is a common topic. Double-action pull is on the heavier side but smooths out after a break-in period and with use. Single-action is clean and predictable. Shooters who have mostly used striker-fired pistols find the transition to DA/SA requires some adjustment.

The 6-inch barrel and 45 oz weight draw mixed reactions. For range shooting and hunting use, the weight helps absorb .357 recoil and the barrel length contributes to velocity. For anyone thinking about daily carry, those same attributes make it impractical -- most owners acknowledge it's not a carry gun.

Some buyers coming from lighter handguns find the weight tiring after extended sessions. Recoil with full-power .357 loads is manageable for most, but people who are recoil-sensitive or new to centerfire revolvers often start with .38 Special before moving to .357. Aftermarket grip options are available if the stock Hogue doesn't fit your hand.