I agree that most bartenders use jiggers or simply estimate the amounts based on experience.

I tend to read every recipe as “parts” instead of the actual volume. So your recipe would be 7 parts vodka, 3 parts triple sec, 1 part Rose’s Lime, 1 part fresh lime juice, and 4 parts cranberry juice with a dash of bitters.

Once you break it down into parts, you can measure everything with a teaspoon, shot glass, or whatever else is handy.

I use my grandaughters old baby bottle. it has different measurements marked on it. Hope this helps.

5 ml = 1 teaspoon

15 ml = 1 tablespoon

35ml = 1.25 fluid ounces

I hope this helps

(Most of us just eyeball it)

check a bartenders book that will be given as partial shots and jiggers. the 2 sided cup bartenders use