If he's been introduced to gun shots.... Which I start with .22 at this age... But if he has been introduced to shotguns and is not spooked at all, no reason not to take him. However, I wouldn't try to work him AT ALL other than some leash training maybe... stay in the blind with me! I would carry my 12-18 week old to training sessions with the big dogs to do nothing but watch and get accustom to the people and environment. On the leash at ALL times. Really pays off down the road at the line on a hunt test or just around people.