Number 4 shot or number 4 buckshot? Big difference and #4 buckshot does a beatiful job. If it is #4 BUCKSHOT do NOT use the extra full chokes. My gun patterns better with mod choke then it does full choke with 4Buck.

If it is number for shot I'd look into spending the extra dough for turkey chokes and turkey loads. And what about rifles? You got any of 'em? I'd personally have more confidence in a 22lr to the head at 50 yards then I would #4 birdshot.