I was out a couple of days ago with my Krink and some 7N6: avg for 5rds was 2528fps.
Bulgarian kit with 16" bbl on 10Feb in Northern VA ( was in the sixties if I'm remembering correctly): avg for 20rds was 3049fps. That's 80fps faster than a 1982 Russian manual claiming 2970fps for a 16.3" barreled AK74.
Just what my chrono showed. Your mileage may vary.