So I took the 325 TR and also Model 60 to the range yesterday. I put 100 rnds thru the 325 TR and 50 rnds thru the Model 60.

The 325 TR strain screw and the cylinder latch screw both held tight. However the screw on the front of the rear sight loosened up.

On the Model 60, the cylinder latch screw held tight but the screw on the front of the rear sight loosened up.

So I put some purple loctite on the 325 TR sight screw. I am holding off putting any on the Model 60 until I go to the range and confirm the sight screw on the 325 TR is not loosening.

BTW-On the back of the purple loctite pkg it indicates the difference in recommended usage of the purple and the blue loctite. The purple (222) is used for screws less then 1/4" and break/prevails torque are 62/27 in-lbs. The blue (242) is used for screws 1/4" to 3/4" and and break/prevails torque are 110/43 in-lbs.

I'll give an update after my next range session with the 325 TR.