I have a remington 870 wingmaster and it is a sweet shooting shotgun. The problem is I really want to use it as my duck and goose gun, but it only takes 2 3/4 inch shells, and I would like to shoot a little heavier loads.

I have heard that a gunsmith can convert it to where it will accept 3 inch shells. Has anyone had this done, and can you give me a ball park on how much this will end up costing?