20 ga is not gun for pheasants even with 3 inch .it is rabbit gun but we all use 22 cal for rabbits.
not bad grouse gun as its light to carry .i would keep it for grouse/rabbits.

12 ga is by far best all around gun and shells are cheaper and put more bb in air.
go shoot clay birds with your 20 ga.then pick up a 12 ga. let me know how you do!

new jersey guys most cant hit anything.

sproul has spoken