How does the side parallax and 50mm objective lens perform in low-light outback conditions?

The 50mm objective lens gathers substantial light for dawn and dusk pest control, while the Fully Multi-Coated optics maintain a clear, high-contrast image. The side parallax adjustment focuses seamlessly from 10 metres to infinity, allowing you to easily dial out parallax error whether you are targeting close-range rabbits or foxes across open paddocks.

Is this riflescope suitable for precision competitive shooting, or is it strictly designed for hunting?

This model features a Second Focal Plane (SFP) reticle with subtensions calibrated at 16x magnification, paired with an exposed BDC target elevation turret. While it works well for rimfire precision shooting and general club target days, dedicated PRS competitors requiring holdovers across variable magnifications are generally better served by a First Focal Plane (FFP) optic.

Does this riflescope require any Australian electrical certifications or battery maintenance?

This is an entirely mechanical, non-illuminated riflescope with no internal electronics, batteries, or power connections. Therefore, mains power compatibility, 240V ratings, and SAA or RCM certifications are not applicable to this product.

How does the weight and bulk of the Thrive X 4-16x50 affect multi-day high-country hunts?

Weighing approximately 714 g with a robust 30mm main tube and 50mm objective, this optic is ideally suited for vehicle-assisted shooting, blind setups, and moderate field walks. For extended high-country tracking or lightweight mountain hunting where keeping total rig weight under 500 g is a priority, a smaller 32mm to 40mm objective optic is typically preferred.

Hunting Riflescope - ZeroTech THXB4165P4

The ZeroTech Thrive X 4-16x50 PHR 4 BDC Turret is a second focal plane riflescope engineered for medium- to long-range hunting, pest control, and target shooting. Built around a single-piece 30 mm aircraft-grade 6061-T6 aluminium main tube, it houses a 50 mm objective lens treated with Fully Multi-Coated (FMC) optics and ZeroTech's Weathershield protective coating. The scope features an exposed, resettable BDC elevation target turret with 0.25 MOA click values, paired with the PHR 4 reticle calibrated at 16x magnification to deliver rapid elevation holdovers and precise dialled corrections without removing turret caps.

Key Features

Exposed BDC Elevation Turret: Resettable target-style turret provides rapid 0.25 MOA adjustments across 60 MOA of total internal elevation travel.
Calibrated PHR 4 Reticle: Second focal plane reticle includes bold 5 MOA holdovers, fine 0.5 MOA subtension marks, and a 12.5 MOA reference point calibrated at 16x.
Close-Focus Side Parallax: Adjustable parallax wheel focuses smoothly from 10 metres to infinity, supporting both short-range rimfire and extended centrefire shooting.
Environmental Sealing: Nitrogen-purged and IPX7-rated waterproof construction withstands complete water submersion up to 1 metre for 30 minutes while preventing internal fogging.
Mechanical Durability: Engineered from one-piece 6061-T6 aluminium and recoil-tested to handle centrefire calibres ranging from .223 up to .300 Win Mag and .338 Lapua.

Technical Specifications

Magnification Range: 4–16x
Objective Lens Diameter: 50 mm (outer diameter: 58.5 mm)
Main Tube Diameter: 30 mm
Focal Plane: Second Focal Plane (SFP)
Adjustment Click Value: 0.25 MOA (¼ MOA)
Total Elevation Travel: 60 MOA
Total Windage Travel: 60 MOA
Eye Relief: 74.5 mm
Exit Pupil: 12.5 mm (at 4x) to 3.0 mm (at 16x)
Field of View: 9.8 m to 2.4 m at 100 m
Parallax Adjustment: 10 m to infinity
Weight: 714 g
Ingress Protection: IPX7 waterproof and fogproof

Who is the ZeroTech Thrive X 4-16x50 PHR 4 BDC Turret for?

Australian Pest Controllers — targets foxes, feral pigs, rabbits, and wild dogs across open paddocks using the broad 4-16x magnification range paired with a light-gathering 50 mm objective lens for low-light clarity.
Rimfire and Sporting Rifle Club Shooters — engages targets from 10 metres out to long range using this second focal plane riflescope's 10-metre minimum side parallax focus and 60 MOA total elevation travel.

Less suitable for: Dedicated lightweight mountain hunters requiring an optic under 500 g, who are better served by a compact 1-inch tube riflescope with a smaller 32–40 mm objective; and dedicated Precision Rifle Series (PRS) competitors requiring exact reticle subtensions throughout variable zoom ranges, who are better served by a First Focal Plane (FFP) optic.

SKU	ZT42430LP
Model #	THXB4165P4
Brand	Zerotech
Shipping Weight	1.0000kg

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Zerotech Thxb4165p4 Riflescope 4-16x50 Phr 4 Bdc Turret

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