How does the side parallax wheel perform for extreme close-range targets like 9 metres?

The custom 145 mm Garima magnetic side wheel allows precise parallax-based rangefinding from 9 metres to infinity, featuring 330 degrees of total cam rotation with 91 degrees dedicated strictly to the critical 40 to 60 metre bracket. For distances closer than 9 metres, optical blur and parallax cannot be dialed out due to the extreme 10x to 60x magnification optical design.

Is this riflescope suitable for mobile hunting or general outback stalking?

No, at 33.6 oz (952.5 g) without rings and featuring a 16.7-inch length and 56 mm objective lens, this optic is unsuited for mobile hunting or general stalking. It is engineered specifically as a stationary platform for competitive Airgun Field Target, .22 LR rimfire matches, and long-range benchrest shooting where it is supported on benches, bipods, or shooting cushions.

What mounting rings are required, and are there any Australian electrical compliance requirements to consider?

This riflescope requires standard 34 mm mounting rings, which are not included with the scope. Because it is purely an optical and mechanical device powered only by a standard internal 3V CR2032 coin battery for reticle illumination, it does not connect to mains power and requires no 240V compatibility or SAA/RCM electrical safety approvals for use in Australia.

How does the optic handle severe recoil and temperature shifts during outdoor matches?

The S6 series is shockproof up to 1,000 Gs for over 10,000 cycles, making it fully rated for heavy recoil impulses from magnum spring-piston airguns, high-pressure PCPs, and rimfire or centrefire rifles up to .50 BMG. Additionally, it incorporates built-in Diopter Correction and Environmental Changes (DCEC) tolerance to prevent target-ranging errors caused by thermal expansion and contraction during shifting outback temperatures.

Field Target Riflescope - Sightron SI-66008

The Sightron S6 Series Field Target Riflescope 10-60x56mm ED Glass MOA-2FT Reticle with Wheel (Model: SI-66008) is a high-magnification Second Focal Plane (SFP) target optic designed for precision competitive Field Target and benchrest disciplines. Featuring two Japanese Extra-Low Dispersion (ED) glass elements with Zact-7 Revcoat Plus multi-coatings, this optic pairs a massive 56 mm objective lens with a 34 mm aircraft-grade aluminum main tube. It delivers extreme image resolution alongside precision mechanical rangefinding via a specialized Field Target parallax cam and an included 145 mm (5.7 in) Garima magnetic quick-detach side parallax wheel.

Key Features

Dedicated Field Target Parallax Cam: Provides 330° of total cam rotation focusing from 9 metres to infinity, with 91° of rotation focused exclusively within the critical 40-to-60-metre competition bracket.
Quick-Detach Parallax Wheel: Includes a 145 mm (5.7 in) Garima magnetic side wheel that attaches and detaches without tools for rapid range calibration and convenient rifle-case transport.
Precision MOA Mechanics: Employs an illuminated MOA-2FT reticle with a floating center dot, powered by a standard 3V CR2032 coin-cell battery, combined with 1/8 MOA ExacTrack erector turrets offering 55 MOA of total elevation travel and 40 MOA of windage travel.
DCEC Thermal Compensation: Features built-in Diopter Correction and Environmental Changes (DCEC) mechanical tolerance to eliminate range-estimation drift in shifting ambient temperatures.
Rugged Durability: Nitrogen-purged, IPX7 waterproof, and shockproof rated to 1,000 Gs for over 10,000 cycles, accommodating spring-piston air rifles, high-pressure PCPs, and centrefire rifles up to .50 BMG.

Specifications

Magnification: 10x to 60x
Objective Lens Diameter: 56 mm
Main Tube Diameter: 34 mm
Weight: 33.6 oz (952.5 g)
Overall Length: 16.7 in (424 mm)
Eye Relief: 3.43 in to 3.96 in (87.1 mm to 100.7 mm)
Field of View at 100 Yards: 10.96 ft (10x) to 1.9 ft (60x)
Click Value: 1/8 MOA
Maximum Adjustment: 55 MOA elevation, 40 MOA windage
Minimum Parallax Distance: 9 metres (9.8 yards)

Who is the Sightron S6 Series Field Target Riflescope 10-60x56mm Ed Glass Moa-2ft Reticle With Wheel for?

Airgun Field Target Competitors (WFTF and AAFTA) — Requires the included 145 mm Garima magnetic wheel and specialized 330° cam rotation to mechanically rangefind target distances down to a 9-metre minimum focus distance with the Field Target riflescope.
Precision .22 LR Rimfire Match Shooters — Benefits from the 10x to 60x variable magnification range and 56 mm objective lens, enabling positive identification and shot placement on tiny rimfire targets from supported competition positions.
Long-Range Benchrest Shooters — Utilises the 34 mm main tube and 1/8 MOA click adjustments to dial fine, repeatable point-of-impact corrections across extreme target distances.

Less suitable for: Distances closer than 9 metres, where optical blur cannot be dialed out; mobile stalking or general hunting requiring low carry weight below 33.6 oz; and tactical or dynamic PRS competitions, where a First Focal Plane (FFP) optic with an open tree reticle is better suited for rapid holdovers at varying magnification settings.

SKU	SIT42365LP
Model #	SI-66008
Brand	Sightron
Shipping Weight	1.0000kg

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Sightron Si-66008 S6 Riflescope 10-60x56 Ed Moa-2ft Wheel

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