Revolver cylinder to barrel gap
- Thread starter gnmontey
- Start date
handofzeus
CGN Ultra frequent flyer
- Location
- Trout Creekish Ontario.
Good question. I have a couple Dan Wessons so I'm laughing, I can infinitely adjust my gap. I try to set them at the standard .006" but often play with .004". I have also been lazy and gone to as large as .009" but that's when the lead-spitting gets quite annoying and greater loss of pressure should be theoretically occurring! As long as you don't drag the cylinder face or shoot huge hunks of lead I guess you're okay. I'd like to hear what others think though.
In general, a lesser gap gives you more velocity and less "spitting" (less leakage of gas between the front of the cylinder and forcing cone) but less reliability (as the gap will dirty up with shooting and can bind the cylinder).
There is some room for adjustment, but like so many other things, its a compromise.
Smith and Wesson considers "spec" to be between 0.005 and 0.010" on their wheelguns, though you can probably get away with as little as 0.004".
See here:
http://www.gunblast.com/SW619-620.htm
I have A DW (44mag) that has adjustable cylinder gap - I set at .006.
You could go to www.danwessonforum.com/ to discuss the .22 with them.
good luck
There is some room for adjustment, but like so many other things, its a compromise.
Smith and Wesson considers "spec" to be between 0.005 and 0.010" on their wheelguns, though you can probably get away with as little as 0.004".
See here:
http://www.gunblast.com/SW619-620.htm
I have A DW (44mag) that has adjustable cylinder gap - I set at .006.
You could go to www.danwessonforum.com/ to discuss the .22 with them.
good luck
- Location
- Prince George B.C.
Tighter is not always better. If your gap is too close powder and lead residue can quickly build up and retard the cylinder rotation.
I am thinking 5/6 thou is probably optimum. A little looser would probably be okay but tighter could cause issues.....especially if your revolver is for IDPA or IPSC use.
John
I am thinking 5/6 thou is probably optimum. A little looser would probably be okay but tighter could cause issues.....especially if your revolver is for IDPA or IPSC use.
John
Back when I was a serious revolver fan [now I'm just an idler at it] .006 was what I was always looking for. I still have some feeler gauges I [ahem] have on permanent load from a previous workplace [the equipment they were used on was going out of service anyway...]. I would take them to gun shops and shows when I was shopping around...it was a great way to get stink-eye from vendors...
