The Mk3 was introduced circa 1961 with the following improved
The Mk3 had a true floating barrel where the fore-end
was mounted on an Aluminium fore-end hangar which connects the fore-end
to the main action and is totally free of the barrel.
This particular example is in very good condition.
These rifles are still capable of amazing accuracy
at the fraction of the cost of a modern .22 target rifle.