Pieter,
That area (Castelo Branco) is a hunter's paradise and game populations are fantastic (esp by 'non Africa' standards)...... it's only about a 1 hour drive from our home here but I like it so much we may well have another bout of house hunting in that area next year.
I thought that when I retired from the safari industry and left Africa, my (biggish) game hunting days were going to be over and I'd made up my mind that I'd shot my last 4 legged animal but it's just so good here, I couldn't resist it....... I guess it's a case of once a hunter, always a hunter.
I don't have any commercial interest but if anyone want to know the agent handling the hunting in the area, please send me a PM and I'll be happy to recommend them.