I just discovered that S&W is sleeving new barrels. The way I found this startling info was through a Ruger ad that said they have all steel barrels. I checked YouTube and found it to be true. I immediately checked my guns and found that I have none. Do all their new guns have this or is it a limited edition thing? I've seen it in Saturday night specials, but this is new to me. Does anyone have any experienced opinions on this? Bobby was right. The times they are definitely a changing.