The nearest major building is the Knowle Hill School, School Lane, Woking GU24 0JN
Turn right out of the Main Gate at Bisley Camp,
Turn left at Pirbright Barracks up over the canal.
Then round the traffic triangle to go straight through the narrow railway arch.
Straight on over the brow of the hill to the traffic lights at Pirbright Village.
Sharp right into School Lane,
Follow that round for 2km, look out for the range entrance on the left hand side.
Google map for Stoney Castle Ranges