Best Scopes for the Weihrauch HW100

Start with the numbers that actually matter for the HW100. Parallax adjustment range is arguably the single most important specification: you need a scope whose side-focus or adjustable objective reaches down to at least 10 yards, ideally 7 yards. Many centrefire-oriented scopes bottom out at 25 or even 50 yards, rendering them useless for close airgun work. Next, consider magnification — for pest control at sub-12 ft-lb distances (realistically to about 40 yards), 3–12× or 4–16× is ideal. For HFT, 10× fixed or a variable capped at 12× suits most rulesets. Objective lens diameter of 40–50 mm provides ample light without excessive weight. Finally, check the tube diameter (typically 1-inch or 30 mm) to ensure mount compatibility with the HW100's dovetail rail.

Budget tiers in the UK market break down roughly as follows. Entry-level airgun scopes between £60 and £150 include models from Bushnell, Hawke and MTC that offer good clarity and close parallax, suitable for casual pest control. Mid-range glass from £150 to £400 brings meaningfully better optical coatings, more precise turrets and finer reticle choices — this is where most serious HW100 owners sit, choosing brands like Vortex, MTC Viper Connect or Hawke Airmax. Premium optics from £400 to £800-plus include high-end Vortex Diamondback Tactical, Leupold VX-Freedom, or specialist HFT scopes; you gain superior edge-to-edge sharpness, better chromatic aberration control and more robust build quality. Night-vision and thermal units occupy their own tier entirely, with entry-level digital NV devices starting around £250 and quality thermal scopes from Pulsar or HikMicro ranging from £600 to well over £2,000.

Common mistakes UK buyers make with HW100 scopes include buying centrefire glass with insufficient close-parallax capability, choosing excessive magnification that narrows the field of view for woodland pest control, and neglecting to budget for quality mounts. The HW100 uses a dovetail rail, not Picatinny, so you need 11 mm dovetail mounts or a rail adapter. Another frequent error is fitting a scope that is too heavy or too long — the HW100 is a well-balanced rifle, and hanging 700 g of glass plus a 300 g night-vision clip-on at the front can destroy the handling. Always check the overall length and weight before ordering.

UK-specific context matters enormously. A sub-12 ft-lb HW100 in England or Wales requires no licence, but in Scotland you need an Air Weapon Certificate for any air weapon. FAC-rated HW100s producing above 12 ft-lb require a Firearms Certificate throughout Great Britain. Northern Ireland operates under its own firearms legislation. For legal guidance specific to your situation, contact your local police firearms licensing department or the British Association for Shooting and Conservation (BASC). In terms of quarry, sub-12 ft-lb air rifles are humane-kill effective on rabbits, grey squirrels, rats and corvids to roughly 35–45 yards — never stretch beyond that. FAC-rated PCP rifles extend this envelope but are not a substitute for responsible range discipline.

Matching the scope to your actual use case is essential. If pest control on farmland permissions is your primary activity, prioritise a variable-magnification scope with a wide zoom range (e.g. 3–12×), generous eye relief and a simple holdover reticle — you will be shooting from varied positions at targets that appear without warning. For HFT competition, invest in the best optical clarity you can afford at the magnification your ruleset allows, and look for a large, finely graduated side-parallax wheel (or fit an aftermarket wheel). For night use, decide between a dedicated thermal/NV scope and a clip-on system; clip-ons preserve your day zero and let you run one rifle for both roles, but add front weight and can reduce image quality slightly compared with a standalone unit.

The brand landscape for UK airgun optics is broad. Hawke and MTC are dominant at the entry and mid-range tiers, offering airgun-specific models with close parallax as standard. Vortex has gained significant UK traction thanks to its transferable lifetime warranty and strong mid-range offerings. Bushnell remains a solid budget choice. At the premium end, Leupold and Zeiss offer outstanding glass, though not all models in their ranges have the close-parallax adjustment airgunners need — check specifications carefully. For night optics, Pulsar and HikMicro lead the UK thermal and digital NV market, with Pulsar's Thermion and HikMicro's Thunder and Thunder Pro lines being particularly popular among airgun shooters. Nightforce and Weaver are better known in centrefire circles but occasionally appear on FAC-rated setups where their robust tracking is valued.