- Place chuck roast in crockpot. Pour beer over the top of the beef. Sprinkle pepper, salt, garlic powder, onion powder, and chili powder over the top. 
- Cover and cook on low for 8-10 hours. 
- An hour or two before you want to eat it, drain all liquid from crockpot and shred the beef. 
- Stir in the BBQ sauce and brown sugar and cook on low for another hour or two or until heated through. 
- Serve on buns.