Thanks for the link VictoryXC they look very good. I'm guessing the 18 inch version will fully measure a barrel of 36" if used from both ends.
I've sent an email to see if he will export to the UK
Thanks again,
Nick.

edit- I didn't see the post above which answers the gauge length question sorry.

Last edited by El Garro; 11/30/16 10:04 AM.

Rust never sleeps !