In article AA04458@rutgers.edu, wwarf@silver.ucs.indiana.edu (Wayne J. Warf) writes:
# In article <23JAN199308595750@zeus.tamu.edu> mjm3170@zeus.tamu.edu (MATTSON, MATTHEW JUL) writes:
# #I have a shooting buddy that recently asked me to post a question to the
# #group to see if anybody out there could help him.
# #He has noticed that his FEDERAL 9mm ammunition has a greenish, stick
# #residue left on it after a few days on duty (police officer) and was wondering
# #if anyone knew what was causing it.
# #
# It's corrosion.
#
# #At first I thought it was corrosion, but he tells me that it wipes off with
# #a clean rag and does not pit the casing of the round.
# #
# verdigris wipes off easily but it's still corrosion.
#
# #Could this be a reaction with the chemicals in his leather holster, etc.?
#
# Yes, it's common. Leave them unattended long enough and you won't be
# able to separate them from the belt.
#
Nickel plated brass will prevent this corrosion. I wise idea. Since if the verdigris is left on the cartidge and fired in the chamber, the gummy mess eventually turns into a cement making extraction difficult to impossible.
