What rings do I need to mount the GPO Centuri 2.5-15x44 on standard Australian centrefire rifles like the Tikka T3x or Howa 1500?

This riflescope features a standard 30 mm main tube diameter, meaning it is compatible with a wide range of readily available 30 mm tactical or hunting ring mounts. For optimal clearance over the 44 mm objective lens on factory bolt-action platforms, medium-height 30 mm rings are typically recommended.

How does the side focus parallax perform at close versus long distances with the GPO Centuri 2.5-15x44?

The side focus parallax adjustment on this model dials down from 10 yards all the way to infinity. This exceptional close-range capability makes it uniquely versatile for everything from rimfire pest control up to extended-range centrefire deer and pig hunting at 500 metres and beyond.

Does the GPO Centuri 2.5-15x44 require any electrical compliance certification for use in Australia?

No SAA/RCM or 240V electrical compliance is required for this riflescope as it does not connect to mains power. It is powered entirely off the grid by a single CR2032 3V Lithium coin battery used exclusively to illuminate the iCONTROL red micro-dot reticle.

How well does the GPO Centuri 2.5-15x44 handle harsh Australian outback conditions during multi-day hunts?

Built for rugged environments, the optic features an IPX-5 water-resistant O-ring seal and is nitrogen-purged to prevent internal fogging in extreme humidity or temperature swings. Furthermore, the exterior lenses are treated with PASSIONdrop hydrophobic coatings to actively shed dust, mud, and water droplets in the bush.

Hunting Riflescope - GPO Centuri RCX631

The GPO CENTURI 2.5-15x44i (MPN: RCX631) is a variable-magnification hunting riflescope engineered for all-around Australian game hunting and precision target shooting. Built on a 30 mm main tube with a 6x zoom ratio, this optic features DoubleHD objective lens elements, GPObright high-transmission multi-coatings, and PASSIONdrop hydrophobic exterior coatings. It incorporates a second focal plane (SFP) G4i Fibre illuminated red micro-dot reticle powered by an included CR2032 lithium coin battery via the iCONTROL illumination system. Target acquisition and adjustments are managed through exposed push-pull locking Zero-Stop ballistic turrets with 1/4 MOA click values and a side parallax adjustment focusing from 10 yards to infinity.

Key Features

Optical Construction: 2.5–15x magnification range paired with a 44 mm objective lens diameter and 4.0 inches (101.6 mm) of eye relief.
Illuminated Reticle: Second focal plane G4i Fibre reticle with an iCONTROL red micro-dot powered by a 3V CR2032 button cell.
Turret Mechanics: Push-pull locking Zero-Stop elevation and windage turrets with 1/4 MOA click adjustments and 110 MOA total internal travel.
Parallax Control: Side focus adjustment dial functional from 10 yards (9.1 m) to infinity.
Weather Resistance: IPX-5 water resistance rating with full O-ring sealing and nitrogen purging.
Handling: Integrated magnification throw lever and a field of view ranging from 50 ft at 2.5x down to 8 ft at 15x at 100 yards.

Specifications

Magnification: 2.5–15x
Objective Lens Diameter: 44 mm
Main Tube Diameter: 30 mm
Reticle: G4i Fibre illuminated micro-dot (Second Focal Plane)
Click Value: 1/4 MOA
Total Elevation/Windage Travel: 110 MOA
Parallax Adjustment: 10 yards to infinity
Eye Relief: 4.0 inches (101.6 mm)
Field of View (@ 100 yds): 50 ft (2.5x) – 8 ft (15x)
Overall Length: 14.7 inches (373 mm)
Weight: 23.1 oz (655 g)
Power Source: 1x CR2032 Lithium battery
Water Resistance: IPX-5

Who is the GPO Centuri 2.5-15x44 G4i Fibre for?

Australian deer and pig hunters — benefits from the standard 30 mm main tube diameter that fits common centrefire bolt-action rifle platforms, delivering 2.5–15x magnification and an illuminated SFP centre-dot suited for varied bush stalking and open terrain.
Medium-to-long-range predator and varmint control shooters — utilizes a 44 mm objective lens diameter and 110 MOA total elevation and windage travel with 1/4 MOA locking Zero-Stop turrets to adjust for distant targets across centrefire ballistic trajectories.

Less suitable for: Dedicated ultra-long-range PRS competition past 800 to 1000 metres where higher-magnification first focal plane (FFP) optics with tree-style reticles are required, or ultra-lightweight mountain stalking setups where compact short-body hunting scopes under 10 inches in length and roughly 540 g are preferred over this 14.7-inch, 23.1 oz optic.

SKU	GPO40675LP
Model #	RCX631
Brand	Gpo
Shipping Weight	1.0000kg

What our Customers are Saying

Recommended Products

Bushnell Match Pro Ed Bump31850dmi Riflescope 3-18

$1,664.95

Vortex 5-25x50 Viper Pst Gen Ii Riflescope - Matte

$2,092.95

Gpo Centuri Rc650 3-18x44i Riflescope Moai Reticle

$874.95

Hawke Vantage Ir 14229 Riflescope 3-9x50 50mm L4a

$434.95

Welcome to Xhunter Australia. By accessing and using our website (www.xhunter.com.au) and purchasing from our online store, you agree to be bound by the following Terms and Conditions. Please read them carefully before proceeding.

1. Eligibility

By agreeing to these Terms and Conditions, you confirm that:

• You are at least 18 years of age.
• You are legally capable of entering into a binding contract under Australian law.
• You will not purchase any restricted or controlled items unless legally permitted to do so.

2. Product Information

• All products listed are subject to availability.
• Product descriptions, specifications, and pricing are subject to change without notice.
• We make every effort to display products accurately, although we do not guarantee that all images or content are error-free.

3. Orders and Payments

• All orders are subject to acceptance and confirmation.
• Prices are in AUD and include GST unless otherwise stated.
• We reserve the right to cancel or refuse any order at our sole discretion.
• Full payment is required before dispatch.

4. Authority to Leave (ATL) and Delivery

• By default, all orders are shipped with Authority to Leave (ATL).
• If you require Signature on Delivery, please contact us prior to purchasing. Additional charges apply.
• If an order is returned to us due to failed delivery or non-receipt when ATL is not permitted, a $25 return processing fee must be paid before reshipment or refund.

5. Returns and Refunds

• Please refer to our full Returns Policy on the website.
• Returned items must be in original, resalable condition unless faulty.
• A restocking fee may apply if an item is not in reselling condition.
• Change-of-mind returns may not be accepted for clearance or custom-ordered items.

6. Firearms and Restricted Items

• You must comply with all relevant State and Federal laws for regulated products.
• You are responsible for ensuring proper licences and permits are held.
• We reserve the right to request proof of eligibility before dispatch.

7. Limitation of Liability

• Xhunter Australia is not liable for direct or indirect losses arising from the use or misuse of products.
• We are not responsible for any unauthorised modifications or incorrect application of products.

8. Manufacturer Warranty Support

Some products sold by Xhunter Australia include a manufacturer’s warranty (for example, limited lifetime warranties). These warranties are provided solely by the manufacturer and are separate from the consumer guarantees under Australian Consumer Law.

Where a manufacturer provides a warranty:

A. The warranty is offered and honoured by the manufacturer, not by Xhunter Australia, unless expressly stated otherwise.
B. Customers may be required to contact the manufacturer directly and comply with their warranty process, which may include overseas product assessment.
C. Proof of purchase is required to lodge a manufacturer warranty claim.
D. Assistance provided by Xhunter Australia in lodging warranty claims is a goodwill service only and does not imply liability for warranty outcomes or decisions.

Nothing in this clause limits your rights under Australian Consumer Law.
Xhunter Australia remains responsible for providing legally required remedies for products that fail to meet the consumer guarantees of acceptable quality, fitness for purpose, and reasonable durability.

9. Privacy

Your personal information is collected, used, and stored in accordance with our Privacy Policy.

10. Intellectual Property

All text, graphics, logos, and images on this website remain the property of Xhunter Australia and are protected by copyright laws.

11. Amendments

We may update or modify these Terms and Conditions at any time without prior notice. Continued use of our site constitutes acceptance of any updated Terms.

12. Governing Law

These Terms and Conditions are governed by the laws of Victoria, Australia. Any disputes will be handled exclusively by the courts of Victoria.

13. 18+ Age Requirement

By placing an order, you confirm that you are at least 18 years of age and legally entitled to purchase the products ordered. We may cancel any order that breaches this requirement.

Gpo Centuri Rcx631 Riflescope 2.5 15x44i G4i Fibre Reticle 30mm

Secure Payment Methods