Since it has a 1-22 twist the options are huge. Everything from a 460gr conical to a 200gr SST will shoot in that twist. Fury and Pittman both offer heavier 40cals too. A 250gr Fury or 225gr Pittman 40cal in a sabot should work very well. Thats just the tip of the iceberg though. Get a adjustable sizing die and a bunch of 45cal bullets have a great chance of shooting well.

I dont have the Accura but i do have several 45s in 1-20 and 1-22. They are very versatile and recent 40cal offerings are a game changer for the 45s.