I have 2 right now. 1 on a Tikka Master Sporter and 1 16" AR. Both have Lilja 1x8 barrels.
http://www.quarterbore.net/forums/at...1&d=1228764057
http://www.quarterbore.net/forums/at...1&d=1228764057
Picture quality is low since I don't do it often.
Nick