Sebić was part of the Serbian national team that won a gold medal in 50 metre rifle prone at the 2009 European Shooting Championships and a bronze medal in 50 metre rifle 3 positions event in 2007. He won a silver medal at the 2007 Summer Universiade in Bangkok in 50m rifle 3 positions event. He also competed in the men's 10 metre air rifle and men's 50 metre rifle 3 positions events at the 2016 Summer Olympics.