Cheers Rick,
I didn't know that. I had wondered if it would be an issue, but I have not seen this mentioned anywhere, so thought it mustn't have been a problem.
Whether I make them, or have them made for me, i'll make sure that is catered for. That will mean I have to get the rear panel (with upper rifle brackets full attached) finished so I can gauge the angle from 'real-life'.
I had intended to call in to the Gympie Woodworks Museum while I was in town this afternoon, but they wern't open!!! Try again tomorrow