J-Frame Cylinder Shim

[BoCash]

Howdy and HAPPY NEW YEAR to all!!

Been a while. Too busy being retired.

Back a couple years ago, I took a model 650 and "made" a LR cylinder for it taken from a Model 34. Timing is good, etc.

However, about 1 out of 6 rounds fails to fire because firing pin does not jab into the shell rim deep enough and it is not always on the same chamber.

Close examination shows the cylinder has a tiny amount of forward-backward play.

I ordered some shims for a "J=frame" but they were the wrong size.

I need a couple shims about .002" that have an Inside Diameter of .224 or .225 to fit in front of cylinder. I know this will increase cylinder gap a bit but this is a non-issue for my purpose.

Anyone know of a source?

THANKS so much in advance, Bo in NC

 

[armorer951]

This company is the best IMO. A family based operation with great customer service.

The shim goes inside the cylinder, at the bottom of the yoke barrel cavity. The revolver will need approx. .001" of end shake remaining in order for the cylinder to rotate properly, open and close, and accommodate lubricant and shooting debris. Be sure the cylinder assembly is clean, and free of excess lubricant, especially on and under the extractor.


The rear gauge or "headspace" should measure .008" - .010".

TriggerShims Brand Gun Shim Kits, Gun Shim and Spring Kits

Carter

 

[BoCash]

THANKS, Arm..!!!

What I ordered said "J-frame" from a person in Oregon and these were the dimensions: O.D. of .293" X I.D. of .190"


I failed to measure before ordering. Once those arrived,
I quickly saw that .190 would not even begin to go over ejector rod. (which I measured between .224 and .225 in diameter.)

The shims on the site you sent are .242 ID. They should slide right one with space to spare. I just have to check to see if the .357 OD will clear

Thanks so much and Happy New Year!! Bo