It depends on your bullet weight, ballistic coefficient and velocity. Plug those numbers into Sierra Bullet's Infinity VI program if you have it or any other good ballistic program. There are probably some that are web based you can use.
We have an unofficial entry contest here in Grants Pass, OR each year. We call it Standard Handgun. Shoot a FP-P entry with any revolver or semi-auto with a barrel length of 6 1/2 inches or less and don't adjust the sights. So far, the top score is 28 with a S&W 686.
The main thing is to have fun!
Let us know how things went after the match.
Steve W.