I am happy to report that Benelli USA customer support was excellent and helped me solve the choke key problem. They explained the choke types I had and how to use them and were kind enough to provide me a key. Thank you Benelli!
I have a new Benelli Nova Pump Action (a standard barrel and an added long barrel purchased separately) and am new to shotguns. The manual describes a choke key to set choke but I was not provided one with my purchase. I could use some help with obtaining a choke key and also how to set choke to position 3 (modified) setting. Also, what 12 gauge round would be appropriate for home defense. Thank you Bernelli veterans for your help.