Federal HW in tight choke?

[Triplgobble]

I have a Bansner sleeved barrel on my 870, I think it is .645, would the Fed. HW work with this constriction? If not Fed. what heavy load would, also what shot size would be best in the heavy loads?     

[HogBiologist]

Fed HW likes the open chokes.  I can get awsome patterns out of a fixed modified choke barrlel.