Revolver Endshake

[Ballistic Dynamics]

Endshake is a pretty common problem in well used revolvers.
This S&W Model 67-1 that came in for some troubleshooting. The customer could only get a couple cylinders shot before the gun would lock up.
The barrel-cylinder gap was out of spec and the cylinder was hitting the forcing cone. Classic case of cylinder endshake.
After verifying yoke alignment, I added an endshake bearing and straightened the ejector rod. Good to go! Shoots like a dream now.

 

[Ultimate Boss]

Did adding the endshake bearing completely eliminate the lockups, or did you have to tweak the barrel-cylinder gap a bit too to get it shooting smooth?

 

[Ballistic Dynamics]

The endshake bearing typically will fill the slop that has accumulated and gets the cylinder back to its normal position. The b/c gap most times ends up back in spec with the addition of the bearing.
Shorter answer is no, I didn't need to do any other tweaking to this one.

 

[Ragnarok]

The endshake bearing typically will fill the slop that has accumulated and gets the cylinder back to its normal position. The b/c gap most times ends up back in spec with the addition of the bearing.
Shorter answer is no, I didn't need to do any other tweaking to this one.

That's really interesting, it is cool how just adding the endshake bearing can realign the cylinder and get the barrel-cylinder gap back in spec without any extra tweaks

 

[Ballistic Dynamics]

Yep, Randall Power was a genius. The endshake bearings are his product.
In this case the b/c gap was too tight because the cylinder was allowed to push up against the forcing cone so filling that gap corrects it.
If you've got other issues like a bent yoke or or yoke endshake, then the problem is compounded. This one was pretty straightforward