As promised, here is the video of the moose charge. The real video is pretty good, but Youtube really hacked the quality and really messed up the sound. I don't mind too much because I sounded kinda goofy yelling, "HEY MOOSE" several times when it charged.
In retrospect, I let this bull get way too close. I felt comfortable because of the pipeline VSM's, so I let it get to about 10 yards before finally trying to call it off. Man these buggers can move quick. Lucky to have a humbling experience where I was able to walk away from it.
The bull charged twice. He went under the pipeline but on the other side of the VSM, and we met face to face on the other side of the pipeline. He charged back at me but hit his antler on the VSM, which I think made him give up the charge. I'm not sure if a third stick and move behind the pipeline would have been possible for me with as fast as he was moving.