This sound is from No Country For Old Men Soundboard

No Country for Old Men is a 2007 neo-Western crime thriller film written and directed by Joel and Ethan Coen. It won four awards at the 80th Academy Awards (including Best Picture), three British Academy Film Awards (BAFTAs), and two Golden Globes.
See also: No Country for Old Men (novel), List of accolades received by No Country for Old Men, Country for Old Men, No Country Club for Old Men, Anton Chigurh, and Gene Jones (actor).