The Walther LGR air rifle was developed by the German arms manufacturer Carl Walther GmbH Sportwaffen as a high end match rifle for 10 metre air rifle competition shooting. The LGR was the first match air rifle that employed the then futuristic single-stroke pneumatic method as power source. This use of pre compressed air introduced the advantages of recoilless and vibration free shooting in combination with a well-made air rifle into the sport. It took other manufacturers a decade before they also introduced single-stroke pneumatic match air rifles.
Walther LGR Match Universal air rifle
Walther factory 10-shot group
Walther LGR cocking lever and loading trap operations
A typical 10 metre air rifle sight picture
A dovetail rail or dovetail mount can refer to several types of sliding rail system found on firearms, primarily for mounting telescopic sights. Colloquially, the term dovetail rail usually refer to any straight mounting bracket with an inverted trapezoid (dovetail) cross-section running parallel to the bore for mounting a scope or diopter sight to a rifle. These are sometimes also called "tip-off" mounts, and allow the user to easily take on or off the sight. Dovetail mount can also refer to a dovetail track running perpendicular to the bore.
A dovetail rail on a rifle receiver for mounting a sight (i.e. a scope or iron sights).
Left: Aimpoint Acro C2 reflex sight laying on its side. Right: Acro rail on a Picatinny riser.
A PSO-1M2-1 scope mounted on a VSS Vintorez
Side-mounted dovetail scope mount on a Romanian PSL rifle