John:

The only time I had a similar problem with my DW (cylinder hanging up after
shooting lots of rounds without cleaning) I had to increase the cylinder to
barrel gap slightly to keep shooting. Enough soot had built up there to cause
the cylinder to hang. Once I got the DW home I gave it a thorough cleaning,
including using a spray solvent that removed all of the existing lubricant along
with the grime. I re-lubricated with very little gun oil and I have not had a
similar problem since then.

If you measure the cylinder to barrel gap at each chamber, how much tighter are
the two chambers that are hanging?

Regards,
Rich in New Jersey

--- In danwesson@yahoogroups.com, "johncharleshunter" <johncharleshunter@...>
wrote:
>
> Hi Guys
>
> had huge issues with the cylinder revolving yesterday at the range - after
about 200 rounds fired, the cylinder started to lock up under double action on 2
of the cylinders only - he other ones remained relatively the same as at the
start of the day.
>
> Thinking it was the teflon powder, I have today cleaned and lubed using an oil
based teflon - havs made a bit of difference, but I can still feel the
resistance on two of the cylinders on double action. Any thoughts on what might
be the cause???
>
> Driving me nuts - and I have no idea as to the cause.
>
> Any help appreciated.
>
>
> Regards
> John