What is the fixed parallax distance on the Sightron SI-32006, and is it suitable for close-range rimfire pest control?

The Sightron SI-32006 has a factory-set fixed parallax at 100 yards. Because it lacks an adjustable objective or side-focus parallax, it is not recommended for close-range rimfire or airgun pest control under 50 metres, as parallax error will occur.

How do the holdover stadia lines on the Hunter Holdover Reticle (HHR) function across different magnification levels?

The HHR reticle is built on a Second Focal Plane design, meaning that the holdover subtensions are only completely true when the riflescope is zoomed to its maximum power of 12x. At lower magnifications, holdover measurements will scale differently and require manual adjustment.

Does this riflescope require any special electrical compliance or import permits under Australian regulations?

No. The Sightron SI-32006 is a completely passive optical device containing no electronics, internal illumination, or batteries. Therefore, it does not connect to Australian mains power, requires no SAA or RCM electrical certifications, and is classified as an unrestricted firearm accessory that does not need a B709A import permit.

What kind of recoil shock and environmental conditions can this riflescope handle in the Australian bush?

Machined from a single piece of aircraft-grade aluminium, this model is shockproof up to 1,000 Gs, making it fully compatible with standard centre-fire hunting calibres like .223, .243, and .308 Win. It is also nitrogen-gas purged and IPX7 waterproof, ensuring reliable performance against internal fogging during wet or humid outback hunts.

4-12x40mm Riflescope - Sightron SI-32006

The Sightron S1 G2 4-12x40mm Riflescope is a variable-magnification optic engineered for medium-range hunting and field pest control on centerfire rifles. Built around a 1-inch single-piece aircraft-grade aluminium maintube, it features fully multi-coated optics with proprietary MC-333 coatings for enhanced light transmission and contrast. Aiming is handled via a Second Focal Plane Hunter Holdover Reticle (HHR) paired with capped, low-profile turrets offering 1/4 MOA click adjustments. Engineered to handle standard hunting calibres, the optic is nitrogen-purged, O-ring sealed to IPX7 waterproof standards, and shockproof rated to 1,000 Gs.

Key Features

All-Glass Optical System: Equipped with MC-333 fully multi-coated glass to reduce glare and preserve clarity during low-light dawn and dusk shooting.
Hunter Holdover Reticle (HHR): Uses thick outer stadia with fine central crosshairs and holdover marks calibrated at 2.5 MOA increments at 12x magnification.
Precise Windage and Elevation: Low-profile capped turrets deliver tactile 1/4 MOA click values with 15 MOA of travel per rotation across a 60 MOA total adjustment range.
Ruggedised Housing: Machined from a single piece of aluminium, fully nitrogen-purged, IPX7 waterproof to 1 metre for 30 minutes, and recoil-tested to 1,000 Gs.
Focus and Eye Relief: Precision focus dioptre eyepiece (+/- 2 adjustment) provides consistent eye relief of 3.2 to 3.5 inches (81 to 89 mm).

Specifications

Magnification: 4x to 12x
Objective Lens Diameter: 40 mm
Tube Diameter: 1 inch (25.4 mm)
Focal Plane: Second Focal Plane (SFP)
Click Value: 1/4 MOA
Total Elevation / Windage Travel: 60 MOA / 60 MOA
Field of View at 100 Yards: 29.97 ft (at 4x) to 9.95 ft (at 12x)
Parallax Setting: Fixed at 100 yards (~91 m)
Eye Relief: 3.2 to 3.5 inches (81–89 mm)
Overall Length: 12.3 inches (312 mm)
Weight: 13.6 oz (386 g)
Mounting Compatibility: Standard 1-inch rings

Who is the Sightron S1 G2 4-12x40mm Riflescope with Hunter Holdover Reticle for?

Walk-and-stalk deer and feral animal hunters — Weighs just 13.6 oz (386 g) to minimise rifle setup weight on foot, while offering variable 4x to 12x magnification inside a compact 1-inch tube to identify and engage medium-range game without carrying target-style optics.
Centerfire rifle shooters — Delivers 60 MOA of elevation and 60 MOA of windage travel with a 1,000 G shock rating to reliably withstand standard hunting calibres out to 300+ metres.

Less suitable for: Close-range shooting under 50 metres, because the factory parallax is fixed at 100 yards, which induces optical parallax error on rimfire or airgun pest setups; an optic with an adjustable objective (AO) or dedicated close-focus side parallax is better suited for targets inside 50 metres. It is also less suitable for holdover shooting at variable power settings, as reticle subtensions are only calibrated at 12x magnification; a First Focal Plane (FFP) riflescope is required for distance holds across all zoom levels.

SKU	SIT42355LP
Model #	SI-32006
Brand	Sightron
Shipping Weight	1.0000kg

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Sightron Si-32006 S1 G2 Riflescope 4-12x40mm Hunter Holdover Reticle

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