On all my TC`s - I have Leupold 2,5-8.
For my revolvers I have always been happy with Leupold 2x and Docter-sights, but after I found a very accurate load for my 454 with 240 gr. XTP/1880 fps - I consider to mount a 2,5-8 on this too (I have a mountingsystem which allow me to change optics within seconds). This load can be used up to 140 yds, and at that range, I feel that 2x is to little.
Somebody will for sure say that: "140 yds? No! Much longer than that!".
But my point of view is that I want to shoot with a TC in a proper caliber for long shots when I am hunting.
The only reason not to mount a 2,5-8 is that I feel that the 2x`eye-relief is better for a revolver - because much of the shooting is not done in the same "good position" as with TC`s with 14" barrels - where I can stretch out my hands in full length.
"But you can bring with you all three sights and change when the needs are there?"
Yes, I can - but will I do that "in the real life"? No!
What do you do?