I was just browsing through the movies on cable and The Rock was on. A little after the start of them film, there's a marine using a Crosman 2240 that has been converted to be a tranquilizer gun. It's a pretty brief scene, but kinda neat to see a Crosman 2240 in big Hollywood film.
Scroll almost all the way down the page to see image.
Crosman made the Cap-Chur rifles and pistols based on the 150 pistol and 160 rifle platform.
I have one of the rifles. Interesting 50 cal shallow rifled barrel.
"Ahhhnold" was also tranq'ed with one in one of his movies. As I recall he was shot at very close range in the neck. You'd be way more than "sleepy" if shot that close in the neck!