Start on a ledge that is just to the left of the second bolt on Battlecry. Start pulling on a small sidepull and then continue up making long moves. The climbing is technical, offering ledges and shallow pockets. You will come to an awkward sidepull/pinch and some good feet. After this intial cruxy move you will encounter a left-hand mono. Pull off the mono and either go to a big right hand or use the small intermediate before. At this point, you can either top it out the same as Battlecry moving right, or I have been told by Spearfish elders you can move straight left using the the Last of the Mohicans holds. This route is very, very good.
Apparently, the name came from the obvious mono that has chalk lining it. You can see it from the ground. Supposedly, it is like a bullet hole.