If I really wanted good patterns and handling I would leave the ten gauge double idea behind and go for a pump or auto 10 gauge still in production such as:
http://www.browning.com/products/fir...e-stalker.html
Any old double gun will only give you a maximum of about .040 constriction whereas a modern pump can be fitted with an aftermarket extended choke tube. You can find choke tubes all the way down to .110 constriction for lead shot with Briley's Invector 10ga Super Turkey straight rifled choke tube .665. Pump gun would weigh in at the 10 1/2 lb range.
But, the biggest incentive to buy the Browning 10 gauge pump gun might be it's most attractive handling feature, it's price, under $699.00, new in a box!
Bill