After pulling the trigger and successfully firing the first round, I pulled the trigger a second time to fire a second. It was dead, not doing anything. I then pulled the charging handle back, which ejected a round and then pulled the trigger again and it fired. I pulled the trigger to fire a third round, but again, it was dead. So I again pulled the charging handle to the rear which ejected a round and picked up another one which I then fired by pulling the trigger.
With the rifle unloaded, if you dry fire it, and hold the trigger then pull the charging handle back to reset it, it does not reset.