Would you tell us which master you are planning to apply? I think, for most master programs, the application is dependable onto your entire profile versus the GPA exclusively. GPA is not the only critical factor to assess your application.
Don't be frustrated. You will never know the result until you try.
I know many people who aim at B-school because they don't know what exactly they want in life. It's better to consult with someone who went through this and talk to either B-school graduates or professionals about your goal before you make a decision. At the end of the day, it is your life and B-shcool is a great amount of investment of money and time.