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Hermann · Rifle

Weihrauch HW77

Lever action · .177 Air (4.5mm) · introduced 1984

Also known as HW 77, HW77K

About the Weihrauch HW77

The Weihrauch HW77 is an underlever-cocked, spring-piston air rifle developed and manufactured by the German sporting weapons maker Hermann Weihrauch. Introduced in 1984, it is a fixed-barrel design that is cocked by a concealed underlever, with a sliding loading port (tap) at the breech. Renowned for its rugged steel construction, considerable weight, and the precision-adjustable Rekord two-stage trigger, the HW77 is widely regarded as one of the finest spring-piston target and field rifles ever made. It is chambered primarily in .177 (4.5mm) and also offered in .22 (5.5mm).

The Hermann Weihrauch company was founded in 1899 by Hermann Weihrauch Sr. and is based in Mellrichstadt, Germany. The HW designation derives from the founder's initials. The HW77's underlever, fixed-barrel layout was a deliberate move toward target-grade consistency, and its Rekord trigger became a benchmark copied across the airgun industry.

Weihrauch HW77 specifications

General

Type
Rifle
Action
Lever action
Trigger
Two stage
Calibres
.177 Air (4.5mm), .22 Air (5.5mm Pellet)
Magazine capacity
1 rounds

Dimensions

Barrel length
470 mm (18.5 in)
Overall length
1120 mm (44.1 in)
Weight (empty)
4.10 kg (9.04 lb)

Barrel

Rifling
Right hand

Materials

Barrel
Steel
Receiver / frame
Steel
Stock
Wood
Finish
blued

Performance

Muzzle velocity (typical)
290 m/s (951 fps)
Muzzle energy (typical)
20 J (15 ft·lb)
Effective range
40 m

History

Introduced
1984
Production status
In production
Country of origin
DE
Designer
Hermann Weihrauch (company)

Available calibres

.177 Air (4.5mm).22 Air (5.5mm Pellet)

Features

  • Underlever cocking
  • Fixed barrel
  • Rekord trigger
  • Iron sights
  • 11mm dovetail rail
  • Loading tap

Safety

  • Automatic safety
  • Anti beartrap

The shorter, lighter HW77K carbine variant has a barrel and overall length roughly 100mm shorter and weighs about 100g less. Muzzle energy varies by market between roughly 16 J (12 ft-lbf, UK legal limit) and 20+ J in unrestricted markets.

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