I looked at the Coldshot a few years back.
I ended up with a Valdada 200 min.adj base . It works great . I have tested it out to 1.72 miles on a 338 Edge .
That sounds like it works great for you!
I am looking for the cold shot specifically though as I am planning to mount a See All MK2 open sight on it atop a .40 cal and .45 muzzleloader. It mounts on pic rails.
It has way more adjustment than I need, but I want it to be precise and reliable. I will probably only ever use a small portion of that adjustability as I will be shooting BH209 loads.
I am basically trying to cook up an alternative to dialable peep/globe sight setups that are harder for me to see through well especially in low light with my glasses.
I have looked at similar rail setups for crossbows but they don't get high marks for repeatability/durability like the cold shot does and I question whether they could hold up to the recoil I plan to subject them to.
I think it could be a fun setup and hopefully more effective for my open sight setups.