Briley does both chamber and brl sleeving
http://www.briley.com/index.asp?PageAction=Custom&ID=17#9
(scroll up about 1/2 way)

Teague is the big name in the UK and lining comes to over $2,000
Here's an article and contact infro
http://www.shootingsportsman.com/index.php/page/issue/sku/SSM2004_0304/id/18
http://www.teaguechokes.co.uk.

Last edited by revdocdrew; 02/16/07 08:28 PM.