I use 1/2" cubes of brisket point for my Big Boy Brisket Chili.
I also use course ground beef and ground sausage, but the cubed brisket goes in at the end.
Big JT's Smokin' BBQ Competition Team
"The path was worn and slippery. My foot slipped from underneath me, knocking the other out of the way, but I recovered and said to myself, 'It's a slip and not a fall.'"