4 Best Scope For 308 Ruger Precision Rifle of 2026 That Hold Zero

1

Monstrum Guardian 6-18x50 AO Rifle Scope with Parallax Adjustment |

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• ARS Mark

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  8.7
• Brand
  Monstrum

Key specs2

Parallax correction

The adjustable objective lens lets you dial out target blur and reticle shift across extended target ranges.

Magnification range

6-18x variable zoom

Pros & cons42

Pros

• High 6-18x magnification provides substantial zoom for distant target identification
• Adjustable objective lens allows fine parallax correction across varying distances
• Large 50mm objective lens gathers ambient light for clear target acquisition
• Finished in Flat Dark Earth to match coyote or desert rifle chassis builds

Cons

• Large 50mm objective requires verifying high-profile scope rings to clear a full rail
• Listing does not state the tube diameter or include mounting hardware

2

Edenberg 1.5-5x20 1-inch Tube Rifle Scope for Hunting and Tactical

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  7.3
• Brand
  Edenberg

Key specs2

Tube diameter

1 inch

Optical zoom profile

1.5-5x low-power variable

Pros & cons43

Pros

• Compact 1.5-5x power range enables quick target acquisition with a wide field of view
• Standard 1-inch main tube pairs easily with widely available scope rings
• Rated waterproof, fogproof, and shockproof for rough outdoor environments
• Streamlined 20mm objective keeps total weight low and mounts close to the bore

Cons

• Low 5x maximum zoom limits long-distance precision on extended ranges
• 20mm objective lens admits less light in dusk conditions than larger bells
• Does not list adjustable parallax or specific ring inclusions

3

CVLIFE 4x32 Compact Rifle Scope Crosshair Optics Hunting Gun Scope

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  7.7
• Brand
  CVLIFE

Key specs2

Mount compatibility

Included 20mm mounts attach directly to standard Picatinny and Weaver receiver rails.

Reticle pattern

Non-illuminated crosshair

Pros & cons43

Pros

• Ships with free 20mm rail mounts ready for standard Picatinny receiver rails
• Compact frame adds minimal bulk to tactical rifle setups
• Fixed 4x magnification provides simple operation with no zoom rings to adjust
• Traditional crosshair reticle offers an uncluttered sight picture

Cons

• Fixed 4x magnification cannot be adjusted for closer or longer target distances
• Caliber recoil rating for .308 Winchester is not specified in manufacturer data
• Fixed parallax design cannot be corrected for varied target yardages

4

CVLIFE 3-9x40 Rifle Scope, Red & Green Illuminated Optical Riflescope,

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  7.1
• Brand
  CVLIFE

Key specs2

Reticle illumination

• Dual red and green color settings
• Mil-dot subtension markings

Mount hardware

Included 20mm scope rings

Pros & cons43

Pros

• Red and green illumination provides reticle contrast against dark backgrounds
• Mil-dot reticle aids in holdover estimation and range calculation
• Versatile 3-9x magnification handles close hunting shots and mid-range targets
• Supplied with mounting rings for immediate attachment to 20mm rails

Cons

• Illumination requires battery power to operate in low-contrast conditions
• Recoil resistance under heavy .308 centerfire recoil is not explicitly verified
• Lacks adjustable parallax for fine focus adjustment at extreme ranges

Last update on 2026-10-05 / Affiliate links / Images, Product Titles, and Product Highlights from Amazon Product Advertising API

Will these scopes hold zero under .308 Winchester recoil?

Optics mounted on a .308 Winchester rifle must feature verified shockproof construction to survive repetitive centerfire recoil impulses. An optic such as the Edenberg 1.5-5x20 1-inch tube model lists 100% waterproof, fogproof, and shockproof construction for hunting and tactical shooting, which helps protect internal mechanics from sharp recoil shocks. Because the Ruger Precision Rifle produces significant recoil energy, unrated glass risks shifting zero or loosening internal erector assemblies. Always confirm the shockproof rating in the manufacturer specifications before selecting an optic for this caliber.

Does a 50mm objective clear the continuous top rail of a Ruger Precision Rifle?

A 50mm objective lens will clear the top rail only when paired with mounts that provide adequate saddle height. Because the Ruger Precision Rifle uses an inline chassis and a continuous flat top rail over the handguard, large optics like the Monstrum Guardian 6-18x50 AO require high-profile rings. Low or medium mounts will cause the wider 50mm objective bell and adjustable objective collar to strike the metal handguard. Measure the vertical distance from your rail surface to the center of the ring mount to confirm clearance before tightening hardware down.

Is adjustable parallax necessary for shooting .308 past 100 yards?

Yes, adjustable parallax becomes vital when shooting centerfire ammunition at targets beyond 100 yards. The Monstrum Guardian 6-18x50 AO rifle scope features an adjustable objective for parallax adjustment, which aligns the focal plane of the target directly with the reticle. Without parallax adjustment, minor shifts in your eye placement create optical drift that alters your point of impact at extended distances. Using an optic with an adjustable objective eliminates this visual error and keeps the target sharp across different ranges.

Do included 20mm scope mounts fit the Ruger Precision Rifle rail?

Scopes supplied with 20mm mounts, such as the CVLIFE 4x32 compact rifle scope or CVLIFE 3-9x40, attach directly to standard 20mm rail sections. But because the Ruger chassis has a straight stock layout, basic included brackets might sit too low for comfortable eye alignment. A mount that sits too low forces the shooter to strain downward against the cheek rest to find a full sight picture. Check both the rail clamp width and the vertical optical center of the rings to ensure a natural, repeatable shooting posture on the rifle.

Which reticle style works better for .308 target shooting: crosshairs or mil-dots?

A mil-dot reticle offers distinct spacing marks for holdover and wind correction, making it practical for varying target distances. The CVLIFE 3-9x40 rifle scope provides a mil-dot reticle along with red and green illuminated optical settings to help you read your crosshairs against dark backdrops. A basic crosshair reticle, such as the one found on the CVLIFE 4x32 compact rifle scope, delivers an unobstructed view for closer ranges but lacks the reference points needed to calculate bullet drop on the fly.

What magnification range suits the Ruger Precision Rifle in .308?

Higher magnification optics like the Monstrum Guardian 6-18x50 AO provide the detailed sight picture needed to aim precisely at mid to long distances. Lower magnification setups like a 1.5-5x20 or 4x32 deliver a wide field of view for quick shots, much like running a Leupold LPVO on a fast-handling carbine, but they lack the zoom needed to spot bullet holes on paper past 100 yards. When target shooting beyond your scope's optical limits, pairing your setup with a spotting scope for backpack hunting helps you confirm hits without moving from your shooting position.