You might have logging globally set to something higher priority than 6 (e.g., 5 or lower numerically). What are you using to display syslog?
You can see the ACE hits using the command line by the following:
"
To display the hit counters and a timestamp value for an access list, use the show access-list command
in privileged EXEC mode.
show access-list id_1 [...[id_2]] [brief]
"