
Ruger · Rifle
Ruger Model 77
Bolt action · .270 Winchester · introduced 1968
Also known as Ruger M77, M77 Mark II
About the Ruger Model 77
The Ruger Model 77 is a Mauser-influenced bolt-action sporting rifle introduced in 1968, designed by L. James Sullivan and Harry Sefried under Bill Ruger. It was one of the first new American commercial bolt actions to deliberately revive Mauser-style features at a time when push-feed economy actions dominated. Notable for an investment-cast receiver, Ruger's signature integral scope-mount bases, and Sullivan's angled front action screw that draws the barreled action down and rearward into the stock for consistent bedding. The 1991 M77 Mark II added true controlled-round feed and a three-position safety before the line was superseded by the Hawkeye in 2006.
The M77 was designed by Jim Sullivan, the same engineer behind the AR-15 and Stoner 63 military rifles, making it a rare crossover of military small-arms talent applied to a sporting bolt action.
Ruger Model 77 specifications
General
- Type
- Rifle
- Action
- Bolt action
- Firing mechanism
- Striker-fired
- Trigger
- Single stage
- Calibres
- .270 Winchester, .22-250 Remington, .30-06 Springfield, .308 Winchester
- Magazine capacity
- 4 rounds
- Magazine
- Internal
Dimensions
- Barrel length
- 559 mm (22.0 in)
- Overall length
- 1067 mm (42.0 in)
- Weight (empty)
- 3.18 kg (7.01 lb)
Barrel
- Rifling twist
- 1:10 in (254 mm)
- Rifling
- Right hand
- Grooves
- 6
Materials
- Barrel
- Steel
- Receiver / frame
- Steel
- Stock
- Wood
- Finish
- blued
Performance
- Muzzle velocity (typical)
- 905 m/s (2969 fps)
- Muzzle energy (typical)
- 3715 J (2740 ft·lb)
- Effective range
- 460 m
History
- Introduced
- 1968
- Discontinued
- 2006
- Production status
- Discontinued
- Country of origin
- US
- Designer
- L. James Sullivan
Available calibres
Features
- Integral scope mounts
- Ruger rings included
- Angled front action screw
- Investment cast receiver
- Hinged floorplate
- Mauser style extractor
Safety
- Tang safety
The original 1968 M77 had a Mauser-style claw extractor but functioned as push-feed with a plunger ejector and used a two-position tang safety. True controlled-round feed and the three-position safety arrived only with the 1991 M77 Mark II. Magnum (RSM) variants chambered dangerous-game rounds up to .416 Rigby and .458 Lott.
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