I had something similar happen today: I got a splatter of hot on my hand, and picked up a small chunk of lead.
Barrel and cylinder looked fine, but from there on out:
-one chamber didn't want to chamber a round as easily (had to push it in the last 1-2mm)
-One of every 6 rounds loaded was quieter than the others
-some of the cases were a little bit smoked on one side. Not a lot, but odd that 3 would be smoked and 3 would be perfectly clean and shiney
Thoughts?