RE: is the 3 1/2 in. mag better for goose?
After patterning 50+ shotguns for customers this year
To fine the best shells for their guns ( yes I get well paid to do their dirty work )
I have found MOST 3.5" loads don't quite pattern as high % as a comperable 3" shell
But the extra pelles in the load more than make up for the lower %
But you still have to pattern your gun / load / choke
Because I just patterned a 3.5"B gun that would notshoot a 50% pattern with any of the factory chokes with 1 3.5" load
Changed loads and it patterned fine
Not sure just why you need 1 3/8 oz of #2 for ducks
But the customer is happy
John