I have seen a couple of sleeved guns that have failed ,in so much that the tubes have started to come out of the backends. This was due in both cases to the simple fact that they were to loosely fitted and thus relying purley on the solder to hold them together. The tubes should be a tight fit .I'm sure some one who actually does the sleeving like John Foster could confirm this .
In fact I have seen more barrels fail or showing signs of failing as the result of having multi choke fitted , which in my opinion , does lower the value of a gun .
