George: there is a bit of a sleeving tutorial here, mostly courtesy of Toby Barclay
http://www.picturetrail.com/sfx/album/view/20580224

Also images of an interesting Parker with barrels lined with ? brass

http://pic20.picturetrail.com:80/VOL.../335165419.jpg

A sad sleeve "job" courtesy of Ed Lander

http://pic20.picturetrail.com:80/VOL.../398703832.jpg

I hope I'm not detracting from Phil's thread, these are posted to show the difference between a welded and unwelded seam.

Here is a .700NE conversion I just finished up, no weld here. photo courtesy of the customer:
http://i121.photobucket.com/albums/o...psdz6k8oup.jpg
http://i121.photobucket.com/albums/o...ps3btrc47n.jpg
http://i121.photobucket.com/albums/o...ps6up3gzhz.jpg
http://i121.photobucket.com/albums/o...psv5nypqhx.jpg
http://i121.photobucket.com/albums/o...psemhcikg2.jpg

I had a bronze lined Parker in the shop recently for some repairs. It was truely an interesting item.
I only figire that it was requested to help avoid bore corrosion.

Good work Aaron. I know you will have a few more shotgun jobs coming your way.

Thank you Brian. I gave your website a look, great stockwork!