I switched mine (454) over to a ghost ring rear and fiber optic red front from Steve's Gunz last year. I found target visibility to be really good for hunting applications and pretty accurate on paper to 50 yards. I feel I could have shot game to a max of 100 yards, but that would have been my absolute limit with that setup.
I recently switched to a scout mount rail (again off Steve's website), as the rifle was already drilled and tapped for this and put a 4x fixed power pistol scope on her. Now 100 yards is an easy shot, but I do feel I have given up some quickness in an "Oh sh-t" situation - I live in griz country. But considering that I'm much more likely to have the opportunity for a 100 yard +/- shot on game than have a bear emergency, I find the trade off more than acceptable.
The rifle feels and looks good with both setups IMO. I am really happy with it.
