Dan Wesson revolver, jamming cylinder

[greatgoogamooga]

I have a used (new to me) Dan wesson mod 15 (.357) that I have replaced the hammer spring and trigger return spring with the Wolff reduced recoil springs and replaced the grip with a Hogue monogrip. No other changes. Since these changes were made, the cylinder stops and will not rotate after a couple of firings. Likewise, the cylinder did not rotate in single action firing. I dont' mean stiff, I mean STOPPED. I can squeeze the trigger a couple of times and it will rotate and fire, but very stiffly.
This only happens with a loaded cylinder, not when dryfiring. Also functions properly with "blanks" which have no primer.

I mention the Hogue grip because I had to replace the grip screw with a longer one. It is _possible_ that the new screw is too long and is keeping the plunger from depressing all the way....but I dont' see how that would effect the cylinder rotation. didn't have a screwdriver at the range.

When I came home, I stripped it and checked a few things. The gap between the cylinder and barrel was tight and I readjusted it with the proper gauge from DW. The ejector rod was loose.

From what I can tell, it looks like the cylinder/barrel gap is the issue at hand here. anything else come to mind that I might be missing? Fuff?? Tuner??

Goog

 

[Dwayne Russell]

First question:

Before you began firing did you gap the firing cone on the barrel to the cylinder with the DW gauge?

And if so was the lock nut tightened securely using the other DW supplied tool?

Any if so did you check to see if the cylinder was rotating properly befor eyou began shooting?

If your having problems with your DW your in luck Bob Serva the former owner of Dan Wesson and now Director of Engineering is on this sight in the 1911 forum. I had him tune up mine!

 

[wintermute76]

I have one doing the exact same thing, except it'll lock up during dry fire or live fire. Gunsmith has had it for a couple months now trying to figure it out.

 

[greatgoogamooga]

First question:

Before you began firing did you gap the firing cone on the barrel to the cylinder with the DW gauge?

And if so was the lock nut tightened securely using the other DW supplied tool?

Any if so did you check to see if the cylinder was rotating properly befor eyou began shooting?

Hopefully Bob will read this and reply. To answer your questions, I did not have the official DW tools before the first test run. I checked the gap with feeler gauges and the .006 gauge was VERY snug. They cylinder did rotate with a little friction, but it did not bind. The gun ran without problems until I replaced the grip and springs, but I had not touched the barrel/gap yet. The tools came from DW yesterday.

 

[NoahFN]

I'm not sure how the spring replacement could have affected the cylinder gap, but thats what it sounds like the problem is.

I had a Dan Wesson that would start to bind up like that if I had the cylinder gap adjusted to tightly and it started to get a little dirty. Opening the gap up just a little bit solved the problem.

 

[greatgoogamooga]

From the replies I've gotten here and at other forums, it's starting to sound like the barrel was moving on me. If the barrel nut comes loose, does the barrel have a tendancy to tighten or loosen because of the twist? I'll be heading up to the range tomorrow after work to check everything out again.

Goog