I've had three, one I made into a 6.5x55 for my dearly departed wife. They were good rifles. I don't think Parker-Hale makes them, they contract them out I think. Mine were all Mauser supreme action's and reasonably accurate. There were some other's since I had mine that were nicer looking but I can't remember what they were called. They will handle whatever you feed them so long as it's reasonable.
Parker-Hale had a large factory at Golden Hillock Road in Birmingham and finished the actions and made their own barrels there as well as sights. The stocks came from SILE In Italy the triggers have Parker-Hale on them but if they made them or not I cannot say. P-H polished and blacked all their own stuff as well to a high standard.
The P-H models that I am aware that they made are :-
Model 1000, 1100, 1100M, 1100 Lightweight, (African Magnum), 1200, 1200 Super Clip, 1200V and 1200TX (single shot target rifle) Scout, Pro Hunter, M81 Classic, M84, M82, Safari, Super Safari, Hussar, Envoy, Enforcer and the Midland. And that does not include the Military rifle conversions to sporting rifles and Target rifles using customers own Enfields.