My PH 300 wmag need info
 

I have found my father's old PH that he had sold years ago and I have purchased it back but I have minimal info on it .
Just wondering what's out there for info on these PH.
Thanks

Parker Hale 243
 

I have this same rifle. Number stamped on the action is 5 digits. Can anyone help me with dating it? Dad bought me this as a kid, it's killed a few whitetail and a sizeable portion of the woodchucks in Western PA. Favorite in my whole collection.