If patterns are shot at 40 yards, then the below nominal 30"-pattern percentages can be applied to determine the amount of choke in a particular shotgun barrel/choke combination.

Get the best pattern out of your shotgun this season with the best pheasant hunting chokes. You'll be making clean shots with these picks.

By learning how to pattern a shotgun, you can make sure it's shooting the best choke and load combo before opening day.

To achieve the best pattern, it’s essential to pattern your shotgun at varied ranges with different brands and load configurations.

I have seen ordinary, run-of-the-mill field guns with plain Invector chokes throw wickedly dense patterns with standard pheasant loads, which are more than sufficient for killing turkeys.