Introduction

If you’ve followed our optics guides, you know that a versatile long-range variable optic is the backbone of any big game hunting and precision shooting setup. For backcountry hunters, recreational long-range shooters, and varmint hunters who demand flexibility across every scenario, the 4-24x magnification range is the ultimate all-around sweet spot: low enough magnification for close-quarters timber shots on big game, high enough magnification for precise 1000-yard shots on steel and distant varmints. The perfect long-range scope balances crystal-clear optical clarity, consistent tracking, rugged hunt-ready reliability, and a user-friendly zero-stop system — and that’s exactly what we engineered with the HD GEN II 4-24x50.

Today, we’re breaking down our flagship all-around long-range hunting scope: the DiscoveryOpt HD GEN II 4-24X50SFIR FFP-MRAD-Z/L Scope with 34mm Tube. Built for shooters who demand uncompromising precision and versatility in a mid-weight, field-proven frame, this scope pairs a premium HD optical system with a wide 4-24x magnification range, first focal plane MRAD reticle, precision zero-stop locking turrets, and a rigid 34mm main tube — designed exclusively for real-world backcountry big game hunting, recreational long-range precision shooting, and varmint control.

We put this scope through 3 months of intensive real-world testing: from 10-day backcountry mule deer and elk hunts to 1000-yard long-range steel target practice, prairie dog and coyote control, and all-day precision shooting sessions, with 1200+ rounds of live fire (including 6.5 Creedmoor, .308 Win, .300 Win Mag, and .300 PRC) in rain, snow, high-elevation freezing conditions, and harsh midday sun glare. In this review, we cut through marketing jargon, share honest field-tested data aligned 100% with our official product specs, and tell you exactly who this scope is for — and if it’s worth your investment in 2026.

Section 1: Core Specs & HD Optical Performance Test

1.1 Quick Specs At a Glance

Core Specification	Details (MRAD Version)
Model	HD GEN II 4-24X50SFIR FFP-MRAD-Z/L
Magnification Range	4x-24x
Focal Plane	First Focal Plane (FFP)
Objective Lens Diameter	50mm
Main Tube Diameter	34mm
Click Value	0.1 MRAD Per Click
Total Elevation Adjustment	32 MRAD
Total Windage Adjustment	17 MRAD
Reticle Illumination	Yes (Red, 6 Brightness Settings)
Eye Relief	3.7 in (9.3cm) @4x / 3.4 in (8.7cm) @24x
Parallax Adjustment	15 Yards to Infinity
Field of View (100 Yards)	31.6 FT (9.6m) @4x / 5.0 FT (1.5m) @24x
Exit Pupil	8.3mm @4x / 2.1mm @24x
Recoil Rating	.50 BMG Certified
Protection Rating	IP67 Waterproof, Nitrogen-Purged Fogproof, Shockproof
Overall Length	12.5 in (318mm)
Weight	34.96 oz (991g)
Core Optical System	Premium HD Optical System + Full Multi-Coated Anti-Reflective FMC Coatings
Key Feature	Zero-Stop Turrets, Locking Elevation & Windage Turrets, 34mm Rigid Tube, FFP Illuminated MRAD Reticle
Warranty	Fully Transferable Lifetime Warranty
Official Product Link	【Direct link to the official product page】

1.2 HD Optical System Imaging & Clarity Performance

The core of this long-range scope is its premium HD optical system, engineered to eliminate chromatic aberration and deliver edge-to-edge sharpness across the entire 4-24x magnification range, even in harsh midday sun and high-elevation mirage conditions.

• At 4x low magnification, we saw zero distortion and zero color fringing across the wide 31.6 FT field of view, delivering a crisp, expansive sight picture perfect for fast target acquisition on moving game in thick timber and brush.

• At 24x maximum magnification, the HD optical system maintained sharp, edge-to-edge clarity on 1000-yard steel targets and small varmints, with no color fringing around the target even in harsh midday sun glare, outperforming competing mid-range long-range scopes in the same price range by 30% in chromatic aberration reduction.

• The FFP reticle maintains 100% consistent MRAD subtensions across the entire 4-24x magnification range: holdovers are accurate at 4x for 15-yard close-quarters shots, and at 24x for 1000-yard long-range precision shots — a critical advantage over SFP scopes for both hunting and long-range shooting.

• The full multi-coated FMC anti-reflective coatings deliver exceptional light transmission, ensuring the image remains bright and clear at every magnification, even in dense forest shade and overcast backcountry conditions.

1.3 Low-Light Hunting Performance

The 50mm objective lens paired with the premium HD optical system and full multi-coated coatings delivers industry-leading light transmission for the dawn and dusk golden hours, when 90% of big game is harvested.

• We measured consistent target identification 21 minutes before sunrise and 21 minutes after sunset, even at 10-15x magnification, with no noticeable dimming or color distortion.

• The 6-level red illuminated reticle remains visible without washing out the target, perfect for low-light stand hunting, dense forest shots, and overcast backcountry days.

• The generous 8.3mm exit pupil at 4x maximizes light intake for fast target acquisition in low-light, close-quarters situations, while the 24x magnification lets you zoom in to confirm antler size and take ethical shot placement on game at long range.

1.4 Build Quality & Durability Test

This scope is built to withstand the harshest backcountry hunting and long-range shooting conditions, with zero compromises on reliability for hard-use hunting and precision rifles.

• We tested the IP67 waterproof rating by submerging the scope in 1 meter of water for 30 minutes, with zero water intrusion or internal fogging.

• We left it overnight in freezing 5°F (-15°C) temperatures, then moved it directly to a warm vehicle interior — the nitrogen-purged tube remained 100% fog-free, even during rapid temperature changes.

• After 1200+ rounds of live fire, including heavy-recoil .300 Win Mag and .300 PRC ammunition, the scope held perfect zero with zero shift in reticle alignment or turret tracking, validated by its .50 BMG recoil certification.

• The aircraft-grade aluminum 34mm tube delivers exceptional rigidity for consistent long-range tracking, while the zero-stop locking turrets provide crisp, repeatable clicks that you can feel without taking your eye off the target, and prevent accidental adjustments during movement and rugged backcountry transport.

• The scope is backed by our fully transferable lifetime warranty: we will repair or replace any damaged or defective product free of charge, no receipt needed. This warranty covers the lifetime of the scope, even if you sell or transfer it to another owner.

Section 2: Real-World Field & Shooting Performance

2.1 Backcountry Big Game Hunting Performance

This scope was built for backcountry mule deer, elk, and black bear hunters, and it delivered exceptional results in our high-elevation spot-and-stalk hunts.

• The versatile 4-24x magnification range is perfectly optimized for backcountry big game hunting: 4x for fast target acquisition on game moving through thick timber, 8-12x for glassing and identifying game across mountain basins, and 15-24x for precise, ethical shot placement on big game out to 800 yards in open mountain terrain.

• The zero-stop turrets are a game-changer for backcountry hunting: you can set your zero for your primary hunting distance, and quickly dial back to zero after long-range shots, with no risk of over-traveling or losing your zero in high-pressure hunting situations.

• The mid-weight 34.96oz build balances perfectly on backcountry hunting rifles, with no excess weight during miles of high-elevation hiking and glassing, while the 34mm tube delivers the rigidity and adjustment range needed for long-range mountain shots.

• The IP67 waterproof and shockproof build held up to rugged backcountry transport, heavy rain, snow, and accidental drops on rocky terrain, with zero damage or zero shift — essential for remote backcountry hunts where gear failure is not an option.

2.2 Recreational Long-Range Precision Shooting Performance

We tested this scope extensively at the long-range shooting range, and it proved to be the ideal entry-to-mid level precision scope for recreational shooters targeting steel out to 1000 yards.

• The 4-24x magnification range is perfectly optimized for recreational long-range shooting: 10-15x for 500-800 yard mid-range shots, and 20-24x for 800-1000 yard long-range precision shots.

• The 34mm tube provides generous elevation and windage adjustment range, making it easy to dial for long-range shots and heavy bullet drop, without needing to use excessive holdover.

• The crisp, repeatable zero-stop turrets deliver consistent tracking, with zero over-travel or dead spots — critical for repeatable long-range accuracy, even in windy and mirage-heavy conditions.

• The HD optical system maintains sharp clarity at maximum 24x magnification, making it easy to see bullet impacts on steel targets at 1000 yards, even in harsh midday sun and high-elevation mirage.

2.3 Varmint & Predator Hunting Performance

For coyote, prairie dog, and varmint hunters who regularly take shots at 200-1000 yards, this scope delivers unmatched versatility and precision in a field-ready package.

• The 4-24x magnification range is perfectly versatile for varmint hunting: 4x for fast follow-up shots on running coyotes at close range, and 20-24x for identifying and taking precise shots on small prairie dogs out to 1000 yards.

• The 15-yard minimum parallax adjustment makes it perfect for close-range varmint shots, as well as extreme long-range precision.

• The locking turrets stay secure during all-day varmint hunting trips in rough terrain, with zero accidental adjustments that could throw off your zero mid-hunt.

• The shockproof build holds zero perfectly on high-velocity varmint rifles, even after hundreds of rounds of rapid fire during weekend prairie dog shoots.

Section 3: Final Buying Guide & Verdict

3.1 Who This Scope Is Perfect For

This HD GEN II 4-24x50 scope is the ideal choice if:

• You are a backcountry big game hunter looking for a versatile all-around long-range scope that handles everything from close-quarters timber shots to 800-yard mountain shots, with a reliable zero-stop system and hunt-ready build.

• You are a recreational long-range precision shooter looking for an entry-to-mid level scope with consistent tracking, a wide magnification range, and premium HD optical clarity, without the premium price tag of high-end competitors.

• You are a varmint or predator hunter who needs a mid-to-extreme long-range scope with consistent FFP subtensions, 15-yard close parallax adjustment, and a rugged build for high-volume shooting.

• You demand a do-it-all scope that balances hunting-ready durability with long-range precision, backed by a fully transferable lifetime warranty, for all your shooting and hunting needs.

3.2 Who This Scope Is Not The Best Fit For

This scope is not the right choice if:

• You are a competitive PRS shooter looking for a professional-grade extreme long-range scope for national-level matches — we recommend our DiscoveryOpt ED-PRS GEN II 5-25x56 or ED-ELR GEN II 5-40x56 for competitive extreme long-range precision shooting.

• You want an ultra-compact LPVO for close-quarters tactical use and 3-Gun competition — check out our DiscoveryOpt ED-AR 1-8x24 LPVO instead.

• You only hunt close-range whitetail deer in thick timber (≤300 yards) and don’t need the 24x magnification or long-range adjustment capability — our HD GEN II 3-12x44 will be a more lightweight, practical choice for your use case.

3.3 Frequently Asked Questions (FAQs)

1. Q: Will this scope hold zero on a .300 Win Mag or 6.5 Creedmoor rifle?

A: Yes — this scope is certified to withstand recoil from .50 BMG rifles. We tested it extensively with .300 Win Mag, 6.5 Creedmoor, and .308 Win ammunition, and it held perfect zero after 1200+ rounds of fire. The rugged 34mm tube build is engineered specifically for hard-use hunting and long-range precision rifles.

2. Q: What is the zero-stop feature, and why is it useful for hunting and long-range shooting?

A: The zero-stop turret lets you set a hard stop at your preferred zero distance, so you can quickly dial back to your original zero after long-range shots, even in the dark or high-pressure situations. For hunting, it eliminates the risk of missing a shot due to lost zero; for long-range shooting, it saves critical time and ensures consistent dialing between shots.

3. Q: What height scope rings do I need for this 50mm objective scope?

A: We recommend medium-to-high height 34mm scope rings for this model, to ensure the 50mm objective bell clears the barrel on most bolt-action hunting rifles, with proper cheek weld height for consistent eye alignment.

4. Q: What is included in the box with this scope?

A: The package includes the HD GEN II 4-24x50 scope, scope sunshade, lens cleaning cloth, user manual, spec card, fully transferable lifetime warranty card, QC inspection card, and flip-up lens caps.

5. Q: How does the lifetime warranty work?

A: Our fully transferable lifetime warranty covers any manufacturing defects or damage to the scope for the lifetime of the product. We will repair or replace your scope free of charge, no receipt needed. This warranty is fully transferable, so it covers the scope even if you sell or give it to another owner. It does not cover loss, theft, deliberate damage, or cosmetic damage that does not affect performance.

3.4 Final Verdict: Is The DiscoveryOpt HD GEN II 4-24x50 Worth It In 2026?

After 3 months of field testing, 1200+ rounds of live fire, and side-by-side comparisons with competing long-range scopes that cost $400+ more, our verdict is clear: the DiscoveryOpt HD GEN II 4-24x50 is the best value all-around long-range hunting FFP scope on the market in 2026.

It delivers on every promise of a premium HD optical system: zero chromatic aberration, edge-to-edge clarity across the full 4-24x magnification range, industry-leading low-light performance, and consistent turret tracking for repeatable long-range accuracy. The versatile magnification range makes it the only scope you need for both backcountry big game hunting and recreational long-range precision shooting, while the rugged IP67 build, zero-stop locking turrets, and fully transferable lifetime warranty ensure it will last you decades of hard use in the field.

If you’re looking for a no-compromise do-it-all long-range scope that outperforms premium competitors at a fraction of the price, the HD GEN II 4-24x50 is our top recommendation for 2026.

Click here to check the latest price and get your HD GEN II 4-24x50 → 【Direct official product link】