This is rifle which they discuss in another forum:

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Orion is the name of a company (Orion Arms Corp) in the US that specializes in military rifles. They were known in years gone past to import large quantities of never issued military Mauser 98's & in particular, they found a very large stockpile of these Portuguese contract Oberndorf Mausers still packed in grease. The figure I read was some 400 units. One of the gun shops in Brissy had some from Orion a fair few years back. I'm thinking QGE, back when they were in their old shop so that's how long ago it was.

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Hallo Matt
Sorry that I only now come back to you.
The name of the guy who built your rifle was Rassie Erasmus, he was only in operation for about two or three years, his shop was on a smallholding at Bredell, near Kempton Park in South Africa. That is near OR Tambo Int. Airport.

Most of his rifles had Blenheim sights on, it resembles anti-aircraft sights. He did build a few rifles for some company in the UK, but I can not remember the name. Not sure if he used the Orion name on them.
If you need more info, I will ask around.
Regards

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