Rossi 642 Reliability, anyone have first hand knowledge?

[Bear Claw Chris Lappe]

The pin is attached to the hammer but is not a fixed pin.  It has motion to it by design (I suppose to help prevent it from breaking??) 

Yes, I've worked on S&W and Rossie revolvers, the movement is there by design.

The misfires seem to occur when the pin does not strike the primer in the center but more towards the edge of the primer.

Definitely sounds "out of time", is there any obvious damage to the hand or timing teeth on the extractor?

[Green Mountain Gringo]

Bear Claw,

You're probably on to it.  I'm used to my guns shooting and don't really know what to look for when they don't go boom.  But the extractor on the Rossi looks chewed up compared to the extractor my Ruger Gp100.

If this is the case, is this something a gunsmith could replace or would it be cheaper to pay the shipping both ways to Rossi?

The first pic is the Ruger with the good extractor, the second would be the Rossi. The reflection from the flash makes it hard to see the detail on the Rossi.