How does the Snap Focus cam system and included 145mm side wheel assist with competitive field target ranging?

The Sightron S6 features a specialized 330-degree cam profile with 39 degrees allotted for diopter correction, tuned specifically to make image separation snap crisply at exact ranges between 10 and 55+ yards. The included 145mm magnetic side wheel, developed with Garima Design, attaches in under one second without tools and provides 91 degrees of throw across the critical 40 to 60 yard zone for precise distance calculation.

Is this riflescope suitable for mobile hunting or dynamic bush stalking in the Australian outback?

No, at 33.6 oz (~952.5 g) bare weight plus the 145 mm side wheel, this optic is purpose-built for static, seated, and benchrest disciplines like competitive airgun and rimfire shooting. Its heavy and bulky profile makes it excessively cumbersome for mobile stalking or dynamic hunting across rugged outback terrain.

What are the minimum focus and recoil limitations when mounting this scope on heavy spring-piston airguns or rimfire rifles?

Targets positioned under 9 yards cannot achieve parallax-free focus through the 56mm ED glass objective. However, the scope is shock-rated to 1,000G for over 10,000 cycles, ensuring it easily withstands the severe bi-directional recoil of heavy magnum spring-piston airguns and .22 LR rimfire rifles.

Does the illumination system on the MOA-2FT reticle require any special Australian electrical certifications?

No special electrical certifications such as SAA approval or RCM compliance are required. The reticle illumination is powered solely by a single CR2032 3V lithium coin cell battery driving an 11-level red LED system, containing no 240V AC mains connection or RF transmitters.

Field Target Riflescope - Sightron SI-66017

The Sightron S6 10-60x56 ED FT Snap Focus Riflescope is a high-magnification optical instrument engineered specifically for competitive airgun and rimfire disciplines. Built on a robust 34 mm main tube, this optic combines a 56 mm objective lens featuring two Extra-Low Dispersion (ED) glass elements with an advanced Snap Focus cam system. Designed to deliver fast, highly accurate range finding at competition distances, it includes a factory-matched Garima Design 145 mm magnetic quick-detach parallax wheel, 1/8 MOA click adjustments via the ExacTrack erector system, and an illuminated second focal plane MOA-2FT reticle.

Key Features

High-Definition ED Optical System: Employs two Extra-Low Dispersion glass elements within a 56 mm objective assembly to minimise chromatic aberration and maximise edge-to-edge optical clarity across the 10x to 60x magnification range.
Field Target Snap Focus System: Features a specialised internal cam with 330° total rotation, allocating 91° of throw specifically to the critical 40-to-60-yard zone for precise optical range finding from a 9-yard minimum focus up to infinity.
Magnetic Quick-Detach Side Wheel: Includes a 145 mm side wheel developed with Garima Design that attaches and detaches magnetically without tools, streamlining rifle transport.
Dedicated 16x Competition Index Mark: Incorporates a clear indicator mark at 16x magnification to facilitate immediate compliance with international Field Target class restrictions.
Heavy-Duty Recoil Rating: Shock-tested to withstand 1,000G for over 10,000 cycles, ensuring mechanical integrity on severe bi-directional recoiling spring-piston airguns up to .50 BMG rifles.
All-Weather Reliability: Nitrogen-purged for fog-proof performance and built to IPX7 waterproof standards.

Technical Specifications

Magnification: 10x – 60x
Objective Lens Diameter: 56 mm
Main Tube Diameter: 34 mm
Reticle: MOA-2FT (Second Focal Plane)
Adjustment Value: 1/8 MOA per click
Total Adjustment Range: 55 MOA Elevation / 40 MOA Windage
Parallax Adjustment: Side focus from 9 yards (approx. 8.2 m) to infinity
Eye Relief: 3.0 to 3.4 inches (approx. 76 mm to 86 mm)
Field of View: 11.4 feet (10x) to 1.9 feet (60x) at 100 yards
Exit Pupil: 5.6 mm (10x) to 0.93 mm (60x)
Illumination: 11-level red LED powered by one CR2032 coin cell
Overall Length: Approximately 16.7 inches (424 mm)
Weight: 33.6 oz (~952.5 g)

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

Competitive Field Target airgun shooters — Requires precise visual distance measurement down to a minimum parallax limit of 9 yards using the specialised 10x to 60x magnification Snap Focus system and included 145 mm wheel on this field target riflescope.
Rimfire benchrest shooters — Relies on extreme target definition and precise point-of-aim hold provided by this field target riflescope's 56 mm ED objective lens and rigid 34 mm main tube tracking 1/8 MOA adjustments.

Less suitable for: Mobile stalkers and dynamic hunters constrained by an overall bare weight of 33.6 oz (~952.5 g), for whom a lightweight, low-power variable hunting optic is better suited; and close-range shooting where targets sit under 9 yards and cannot achieve parallax-free focus.

SKU	SIT42374LP
Model #	SI-66017
Brand	Sightron
Shipping Weight	1.0000kg

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Sightron S6 Si-66017 Riflescope 10-60x56 Ed Moa-2ft

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