I have three model 15-2s. An 8" heavy, 2.5" vented non heavy and a 3" fixed barrel. I also have a newer 715

The only issue I've had is a few guns had excessive carbon buildup in the yoke barrel/cylinder area and removing the cylinder and disassembling is not as easy as a S&W. The ejector rod with the knob on the end will require some thought to remove, I used a drill chuck in my hand.

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-Matt