It is possible to taunt her into threatening the player. However, when the player meets her at the area she told them to ("In the den after lights out"), nothing happens.
Although the player can taunt her about being a better shot, during the quest Take it Back! she can be seen shooting across the entire span of the Potomac River, a nigh impossible feat for the player to accomplish.
A certain conversation path will reveal that her true name is "Dawn" and becomes defensive over the obvious irony.
Her quote "Remember: One shot. One kill." is a phrase used by snipers around the world.
Her quote "Put any mutie bastard within one mile of me and my rifle and, well... pack it up troops. Fight's over." is a reference to Private Jackson from the movie Saving Private Ryan.
She will express confidence in her ability to fight the Enclave, saying " I can't wait to see if one of those helmets can stop a hollow point round at 100 yards. I'm thinking... not." However, hollow point rounds are designed to expand on impact, therefore making penetration of such helmets unlikely.