the 20 gauge 28" vent rib would be perfect for turkey hunting, in terms of shells i would take a look at either the hevi 13 7's or 6's or hevi 13 magnum blends, if you want a legit turkey killer then you will need a new turkey choke. if your real serious about it then i would take a look at an indian creek or pure gold turkey choke, both companies are proven and will allow you to change constrictions until you find a pattern you like, they run about $70 a piece but are really really really worth it. next in line would be a kicks gobblin thunder or primos jellyhead or tru glo ssx these run about $40 bucks a piece and are excellent chokes that will give you killing patterns. in my opinion if your gonna use this gun for a long time then invest the money in either a pure gold or an indian creek and you will save yourself a lot of time and hastle looking for a good choke/shell combo. call pure gold or indian creek and they will be more than happy to talk to you about your needs and will get you set up right. i've tested a lot of turkey chokes and shells so if you would like some more info or have any questions pm me, id be glad to help