In a 6- to -qt heavy pot, combine sugar, peaches, bourbon, and lemon juice. Bring to a boil, stirring constantly, until sugar dissolves. Quickly stir in pectin. Bring to a full rolling boil, stirring constantly. Boil hard 1 min, stirring constantly. Remove from heat. Quickly skim off foam with a metal spoon. Ladle hot jam into hot, sterilized half-pint canning jars, leaving a 1/4-in headspace. Wipe jar rims; adjust lids. Process filled jars in a boiling water canner for 5 minutes (start timing when water returns to a boil). remove jars from canner; cool on wire racks. To distribute fruit, cool 30-40 min, then gently turn and tilt. Makes 7 half-pints.