Mr Thorp gives his age as 89, and assuming this is correct, I propose we all should consider whether to allow the gentleman a modicum of dignity and leeway in the way he chooses to express himself. For I'm happy with strong views - and wrong views - just as long as nobody gets hurt!
If the rifle in question is a fake, and I accept it is, then let's see the proof spelled out, point by point. We'll all learn something.
The old caveat "I don't want to give the fakers the benefit of my knowledge" can also be a consideration, naturally.