Do you have a recent full body picture?
His bloodlines will depend on his shape and size too. Our jesse was about 30lbs at 5 months, she's a girl though, and short and stocky! But some bullies will weigh more if they are long legged too. Depends. Average make is 55lbs at age two, when they reach their full adult size. Females is 45lbs. Could vary 10lbs on either sex. Hope you can upload a picture!