Since sleeving offers more opportunity to be wrong than correct I wont buy a sleeved gun. I do have a Harkom 16 that is rebarreled.
There are plenty of examples of botched gun work out there aside from bad sleeving jobs. The sleeving jobs that are done well are nearly undetectable, and they do not appear to be unsafe to shoot. Most of the gun blow-up threads we see here do not involve sleeved guns. Guns that are stamped "Sleeved" are marked that way after they have passed Proof in Great Britain. The process is not cheap. They will never be worth as much as an original un-sleeved gun in otherwise equal condition. But they present an opportunity to salvage an unsafe and otherwise unshootable gun.
As with all gun work, you have to find a competent Gunsmith with a good reputation, and you have to decide whether the final cost can be justified by either the actual or sentimental value of the finished product.
