Re: which caliber for all around use?
and another example of different chokes. Judge is rifled as stated above and has no restriction/choke.
A normal .410 is FULL choke. So yes, there's a huge difference due to that and the rifling.
A 4" smoothbore with cylinder bore choke vs an 18" or 30" smoothbore cylinder bore will pattern pretty similar. Velocity is probably the only thing that would really alter the pattern and probably not much.
Most of the powder in a shotgun is burned up within the first 2 inches or so; barrel length past that gives relatively small gains in velocity and nothing significant enough to measure for pattern.
"Loud noises don't end gunfights.... well placed shots do."