Raymond Chandler, in his book The Long Goodbye, memorialized the Gimlet as "half gin and half Rose's Lime Juice and nothing else." He was right, but he forgot the lime wedge. But I guess that's implied. Chandler was just too hardboiled to talk about a squeeze of lime.
Here's the gimlet recipe:
* 2 oz. gin
* 1/2 ounce Rose's lime juice
* Garnish with lime wedge
For a vodka gimlet, substitute gin with vodka. Don't use both. Have some class.