Is Old Overholt straight rye whiskey same as bourbon?

The only difference is the majority of grain in the MASH. Bourbon is corn based instead of rye so your Old Overholt Straight Rye Whisky is composed of a minimum of 51% rye and aged for a minimum of 2 years. ----------------------- Rye Whisky is produced at not exceeding 80% alcohol by volume (160 proof) from a fermented mash of not less than 51 percent rye and stored at not more than 62.5% alcohol by volume (125proof) in charred new oak containers. The Straight in its label indicates it was aged for a minimum of two years in the charred new oak container. Bourbon Whisky is produced in the U.S. at not exceeding 80% alcohol by volume (160 proof) from a fermented mash of not less than 51 percent corn and stored at not more than 62.5% alcohol by volume (125 proof) in charred new oak containers. Previous answer was incorrect in that bourbon may be made anywhere in the United States.