My first thought would be to back the powder charge down as stated. I have never gotten good, consistent accuracy using the max load of powder. You will still be able to shoot out to 100 yards and beyond using a much lighter powder load. Especially using a 200 grain bullet. I would try backing down the powder load first.

Make sure everything is consistent. If you change one little thing in your cleaning, loading, preparation, etc... it will have an effect on the bullet impact. When breaking in a new gun, I always recommend a 1 shot then full breakdown and clean routine until you know where the gun will hit out of a clean, cool and dry barrel. After that you can experiment.

How easy is the bullet loading in the gun out of a clean dry barrel?

Let us know your results.