I am a Bullseye shooter and just aquired a 52-2 for centerfire.
I went with the frame mounted BME mount with a 1" Ultradot.
I consider the Ultradots very good optics for Bullseye shooting.
We will see what happens with this combination in this upcoming season.
I know it does not answer your question, but am biased to good optics for 50 and 25 yard shooting.
What are you specifically wanting to do in Bullseye ?
Are you only shooting 25 yards ?
What other guns do you shoot and their optics if any for Bullseye.
Do not take my questions the wrong way.
I am here to help cause there are not to many of us BE shooters out there.
Clarence