In this buyer's guide, let's take a look at the best rifle scope for 308 for hunting, plinking, military & competition. These scopes provide excellent reticle system for beginners as well as experienced long range shooters.

While the learning curve for long range shooting can be challenging, these scopes are great on most 308 flat top rifles and precision bolt guns.

Let's check them out

Best 308 Rifle Scopes

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  • Magnification: 5-20X
  • Objective Lens: 50mm
  • Focal Plane: 1st Focal Point
  • Exit Pupil: 2.5 - 10mm
  • Eye Relief: 3.9 in
  • Overall Length; 15.8 inches
  • Weight: 37 ounces
  • Tube Size: 35mm tube
  • MOA Adjustment Range: 0.25 MOA / Click

The Vortex Razor HD Gen 2 stands out as a superb choice for hunters and precision shooters, particularly with a .308 rifle. It provides crystal clear views, robust design, and various reticle options.

This 35mm scope caters to serious shooters, offering extensive adjustments for long-range accuracy, especially on the AR platform. The 5-20X50 model's ideal magnification enhances .308 bullet shooting precision.

Its versatility shines, serving reliably across different rifles for years. The advanced L-Tec turret system, combined with high-end features, ensures precise shots. Constructed with high-quality aluminum and a special coil spring system, it withstands recoil and maintains accuracy.

Pros include micro-adjust zero setting for optimal accuracy, tank-like durability, and top-notch glass quality. However, its weight is a notable con. The Vortex Razor HD Gen 2 is a durable, precise, and clear choice, albeit heavy.

  • Magnification: 3-9X
  • Objective Lens: 40mm
  • Focal Plane: 1st Focal Point
  • Exit Pupil: 1.9 - 8mm
  • Eye Relief: 3.3 - 3.5 in
  • Overall Length; 11.61 inches
  • Weight: 14.4 ounces
  • Tube Size: 1" tube
  • MOA Adjustment Range: 0.25 MOA / Click

The Diamondback scope stands out for its solid one-piece construction, making it nearly indestructible and highly resistant to heavy recoil. Its Argon purging process ensures water and fog resistance.

More affordable than six other compared scopes, it excels in long-range shooting up to 1000 yards, perfect for .308 rifles.

Its shockproof design can handle recoil and impact. The 50mm objective lens captures ample light for bright images in various lighting, essential for hunting.

The Fast Focus Eyepiece quickly adjusts reticle focus, aiding shooters with corrective lenses. Its capped turret prevents accidental adjustments and allows tool-free re-indexing to zero.

Finally, the versatile Dead-Hold BDC reticle makes the Diamondback ideal for a wide range of hunting and long-range shooting.

Leupold mark 5 hd shooting prone
  • Magnification: 5-25X
  • Objective Lens: 56mm
  • Focal Plane: 1st Focal Point
  • Exit Pupil: 1.9 - 8mm
  • Eye Relief: 3.6 - 3.8 in
  • Overall Length; 15.7 inches
  • Weight: 33 ounces
  • Tube Size: 35mm main tube
  • MOA Adjustment Range: 0.25 MOA / Click

Leupold scopes excel due to their robust build and superior lens clarity, often surpassing the Vortex RAZOR HD Gen 2 in durability. The lenses, remarkably clear in low light, boast edge-to-edge sharpness.

Tailored for modern long-range rifles and ammunition, these scopes feature the DiamondCoat 2 on the outer lens, enhancing light transmission and resisting scratches. The 35mm tube allows for extensive click adjustments, crucial in long-range shooting, offering up to 100 MOA for elevation and 50 MOA for windage.

A unique feature is the non-interfering magnification throw lever, designed for quick adjustments without hindering bolt action. Leupold's Twilight technology significantly improves color and contrast in low light, extending shooting time and reducing glare.

The scopes also feature an intuitive rotation identification system, preventing confusion during turret adjustments, and an innovative windage indexing line, allowing shooters to adjust while maintaining their position.

vortex 1-10x on ar10
  • Magnification: 1-10X
  • Objective Lens: 24mm
  • Focal Plane: 1st Focal Point
  • Eye Relief: 3.6 in
  • Overall Length; 10.1 inches
  • Weight: 21.5 ounces
  • Tube Size: 34mm main tube
  • Click Adjustment: 0.25 MOA or 0.1 Mil / Click
  • The Vortex RAZOR 1-10X FFP revolutionizes low power variable optics, expertly merging close-quarter and long-range capabilities. Despite its advanced 10X magnification, it maintains a weight comparable to the 1-6X model.

    Its enhanced ocular lens offers a larger eye box at 1X, ensuring rapid target acquisition and a wide field of view. The new EBR9C reticle, optimized for quick and precise targeting at both CQB and longer ranges, features intuitive hash marks and a bright center red dot.

    Additionally, the reticle's design on the first focal plane aids in accurate range estimation and windage adjustments. The scope's horizontal line subtension now includes finer 0.5 mil hashmarks for precise adjustments.

    Improved for ease of use, the magnification dial turns smoothly, complemented by a quick switch lever for rapid power changes, making the RAZOR 1-10X ideal for dynamic shooting scenarios.

    Vortex pst gen 2 5-25x50
    • Magnification - 5-25x
    • Objective Lens Diameter - 50 mm
    • Adjustment Graduation - 1/4 MOA
    • Eye Relief - 3.4 inches
    • Tube Size -  30 mm
    • Focal Plane - Second
    • Length - 15.79 inches
    • Weight - 31.2 oz

    The upgraded Vortex Optics Viper PST Gen II 5-25x50 enhances the original scope with more durable construction, clearer glass, a larger eye box, and increased eye relief.

    Its turret adjustment, now similar to Vortex's high-end Razor line, simplifies zero stop adjustments. Ideal for 7.62 rifle shooters, the Viper PST serves well in hunting, competitive shooting, and tactical scenarios, thanks to its glass-etched EBR-7C reticle. 

    ACOG 3.5X on FN SCAR 17
    • Magnification - 3.5x FIXED
    • Objective Lens Diameter - 35 mm
    • Adjustment Graduation - 1/4 MOA / click
    • Eye Relief - 2.4 inches
    • Length - 8 inches
    • Weight - 14 oz

    The ACOG scope, renowned for its durability, stands out in the military for its robust 7075-T6 aluminum construction, making it nearly indestructible and shock-resistant. Its compact design offers enhanced eye comfort, ideal for 308 semi-automatic rifles. 

    Excelling in medium-range up to 400 yards, the ACOG is a top choice for AR10 308 rifles. The 3.5X35 model improves eye relief, preventing injuries during recoil. It supports various aftermarket mounts, allowing for customization. 

    Available reticles include crosshair, horseshoe dot, and chevron. Most models, like the 3.5X35, feature a battery-free, tritium/fiber optic illuminated reticle, adjusting brightness automatically and ensuring constant readiness.