That will be determed by how far you want to shoot and what your shooting? Most sight in at 40yds with a 10" circle, even though most birds are shot 30yds or less. Many people spend a lot of time and money to get the best pattern they can get out of their guns, trying different chokes and shells to get that.
Dodge County NWTF Chapter
WI. Youth Turkey Mentor
*Safe Hunting Is No Accident*
It takes One Second to be Stupid, a Lifetime to be Safe.