I have one on my Browning M71 and it has been fine.
I never even thought of this. I have a Winchester 1886 Extra Light .45-70. I was thinking of a peep sight but this set up is appealing. It looks high enough that you would look over the facctory sights.
What base are you using?
Edit: duh, Turnbull. Someone already mentioned it. Looks like an option worth considering.