It's usually some six-fingered bastard that couldn't hit a cow in the tit with a tin cup that does you in.
8 seconds sound clip from the The Shootist movie soundboard.
You can hear this line at 00:58:57.417 in the DVD version of the movie.
Quote context
[...]
- It isn't always being fast, or even accurate that counts. It's being willing.
- Yeah.
- He says that a man has to have guts, deliberation, and a proficiency with firearms.
- Did he mention that third eye you better have?
- But then, Bat Masterson always was full of sheep dip.
- Whoa. I hope you're smart enough to know that that who hit John don't go with guns.
- Well, now that we got that cleared up, as my Mexican friend said: 'To the pure life.'
- Johnny?
- Yes?
- Don't... Don't you remember me?
- Serepta?
[...]