Rex tears apart the United States Army Sniper field manual FM 23-10 section on correcting for humidity. Were the writers of the text smoking crack? Watch this video to find out. Rex gives an explanation of how humidity affects atmospheric density and gives an example of how this works out for long range shooters. All the music, animations, and photography in this video were created by TiborasaurusRex, and unsigned artist. Song Titles: Particle Jam, Magnetic Night Music and Lyrics by: TiborasaurusRex Instrumentation and Vocals by: TiborasaurusRex Recorded by: TiborasaurusRex