a.) It's not supposed to.
b.) Thousands of dry fires haven't seemed to damage any of my 19's or my 29-2.
c.) It will make the ring around the cylinder more pronounced and it can cause more chaffing on the finish on the sides of the hammer if appearnce is a concern.
d.) Remember the safety rules when dry firing. (sorry to be soap boxish,,,well not really since it can't be overstated. fair number of threads dealing with shot up stuff using a supposedly empty gun)
E--yes this one's bold for a reason cause I found it so easy to fall into.
Just because the gun is empty don't allow any bad habits to creep in. I quit dry firing because of that very reason.
Good golly I hope not!!! Don't know how many times I have dry fired my Model 19-3. When I am sitting around with nothing else to do, my hand tends to gravitate towards that four inch Model 19 for a little trigger finger exercise.
RAE - no need to apologize for the ammo warning, since one of those threads about 2 years ago was me explaning how poorly a plate glass sliding door fares againt a .40 HydroShok.
Ammo in entirely separate room from gun now when I dry fire...