Papajohn,
Great to see you here! At the old M-T many guys permanently mounted shotgun scopes on some of their rifles. I for one haven't tried one but from the other's experience it works well, especially for load development. They are suppose to be parallax adjusted to 75yds and should serve you well. For load development I use an old Tasco 1.75 X 6 and it does well for what I need. If I were you I would give it a try, what could it hurt, you could always sell it on ebay if it doesn't do like you want. By the way what is your "sight" by choice on your rifles? I have come to love the factory sights on my Marlins. Took a while to get use to them though!
