The usual method now seems to be to make the cylinder completely clear of the stock, leaving only the small part of the action in contact with the bottom of the stock, which of course is easier to sort out.
I can remember talking to Paul Wilson and mentioning zero shift with my MPR in a CS800, he relieved the cylinder area as he did hi own stocks and I had no more problems. As long as you are touching in the majority of the action area I would not think it would make a lot of difference.
Try engineers blue on the action and checking where it touches, you can use black marker pen if you dont have engineers blue.
I think with PCP air rifles its more about not having pressure points on the cylinder, springers are a different thing, and probably more like a centre fire rifle action that does need to a pretty good fit all over.
Last edited by DEAN C.; 10th November 2014 at 10:12 AM.