Dean, that is not it, however looking at the other H&R revolvers, I realise how my memory could be slipping.... this would be so much easier if:
1. I was back in the states (specifically Arizona) and
2. The shop I saw it in was still open.
If I remember right it was like Pipoman described, it had a cylinder ( don't remember if it had dummy rounds in it. Darn memory must be getting to me
Thanks again, I'll surf on for more info though