From the condition of the recoil shield, it appears that gun has barely been shot. NICE find !!! I've always wanted a Dan Wesson but couldn't afford one when they were being made and now they seem to be as rare as hens teeth.
Because of this, when I did have the funds for some fun guns, I purchased the S&W 620 specifically because it features a tensioned barrel. In regard to that gun, the accuracy is stunning. The sight radius is also short enough that I have to "cheat" and use an optical aid to shoot it anywhere near it's potential. However, with a J Point Reflex I've managed to get under an inch at 25 yards for a 3 shot grouping using 130 grain Federal TMJ in 38 spl.. BTW, don't ask about my 7 shot groups, I get too excited when hitting this well and start throwing flyers. IMO, tensioned barrels do work and I'll continue to keep my eye open for a Dan Wesson like yours, however I'd really love a 3 or 4 barrel kit.
A couple of tips. I've been reading up on the DW revolvers because of my interest and have gleaned 2 things in my reading that may be of value.
One is that the quality of assembly was pretty awful at some periods in the Dan Wesson history and there are many reports of poorly timed guns. Make sure that you check the timing on your gun for every chamber before hitting the range. If it's off, you may need to have a gunsmith familiar with the DW tune it up. However, while looking for a smith qualified to properly tune up these revolvers you should be fairly safe if you shoot in single action and check the cylinder for proper lock before each shot.
The second is that they are most accurate with the B/C gap set to 0.003 inch, which is very tight in comparison to most revolvers and will require cleaning of the face of the cylinder every 4 or 5 cylinder loads. You will also want to check the B/C gap on each chamber because there are also reports of cylinders manufactured with off square faces. However, I've been told that when well tuned and run this way, they can group under an inch at 50 yards and have seen some claims of groupings under 1/2 inch at 50 yards. However, I'm starting to suspect that there are robots walking amoung us because I just cannot fathom how any human being can hold a handgun steady enough to get a 1/2 inch group at 50 yards.
Bottomline, yeah there were some issues with the Dan Wesson line. For most of its history it was a pretty cash poor company and they did have periods when the quality was pretty poor. However, they are a great concept and a great platform to build on, so IMO they are worth the effort.
