Unless you want to tote 12lb crowbar, I would go with Citori Satin Hunter 12br with 89mm chambers. I think 89mm chamber on shoulder-fired fixed breech gun is , but that's the one I would pick. The thing has everyting goose chaser could wish for: satin finish, tubes, approx. 8lb wt.,....Personally, I would go with 10br Semi-Auto by Ithaca (now made by Remington),... Actually I would just use Hevishot in 12br to extend range and forget that stupid 10br.