h & r choke ?s

[presdme]

Hey all I am new here but have been following this forum for awhile. I have sent away my h & r receiver to be fitted for a 20 gauge 28 inch vent rib barrel. I would like to shoot some sort of heavy shot with this new barrel when it finally comes. Needing to spend as little as possible  what do you think about federal flight #7 and a Carlson's extended 575 choke tube? Or if you have any other combos that might work that would be appreciated. Thanks and GOOD HUNTIN!!

[SumToy]

We set one up like that last year. 565 to 570 HV-13 7's it was around 175 in note book paper 10 inch circle was 160 something.