View Full Version : Colt King Cobra 357 Mag. has issues

February 21, 2011, 02:47 PM
I've had this revolver since approx' 1986, bought new and have fired it less than 100 rounds. Now it seems that when I pull the hammer back the chamber doesn't want to turn unless I use lots of force. If I open the chamber and turn the wheel it's good for another 2-3 rounds before it happens again. This is happening with 38 spl. loads. Have not tried the 357 Mag. loads. Any suggestions?

James K
February 21, 2011, 04:39 PM
Remove the cylinder and dunk it and the crane into Kroil or some other good penetrant. It sounds like there is dirt or old grease in there. DO NOT TRY TO TAKE THE CYLINDER ASSEMBLY APART! Just soak the whole thiing for a couple of days, drain, and lightly oil.


February 21, 2011, 07:16 PM
"Just in case".... Before doing that, get a really stiff toothbrush, or better a brass "toothbrush" and scrub the under side of the ejector and it's recessed seat in the cylinder.

When ejecting fired cases grit may fall between the ejector and cylinder and get trapped there.
When the gun is fired, the grit can get embedded and be hard to remove.
The grit can be so small it's impossible to see.

To help prevent this, when ejecting fired cases, hold the muzzle up so the cases and any grit or burned powder particles fall free instead of getting trapped.

If this doesn't do it, try the above trick.
Use a GUNSMITH'S screwdriver bit to unscrew the large "screw" on the right front of the frame.
Under this is a spring and plunger, remove them.
Open the cylinder and rotate it until a flute lines up with the left lower part of the frame, then slide the entire cylinder and crane assembly forward and out.

Push the ejector back and wedge a piece of metal or solvent proof plastic under the ejector to hold it open.
Soak as above for a day or so. I preferred cheap paint thinner for this because it drys.
After soaking, drain thoroughly, shake off any excess and use a hair dryer to warm the assembly to finish drying. (Note: Hair dryer, NOT torch, oven, or heat gun).
Spray in a good lubricant like CLP Breakfree and reassemble.

If THAT doesn't do it, return the gun to the Colt factory for a repair.