I recently just purchased a Benelli Nova with the 28” barrel. I decided to try out the factory full choke with 3 inch Winchester longbeard xr’s in #6 shot. I made two shots with a good rest and both were around 3-4 inches to the right. I then purchased a Carlson choke in .650 for the Winchester longbeards and shot it today. The size of the groups decreased drastically but each shot was 4 to 5 inches apart. It’s now shooting all over the place. I’m pretty confident that it was a very well squeezed off shot. Is there something I’m missing as to why it’s shooting so weird? Is it the sights? Thanks!