Not adjustable
I have a "Kahles" 3X9 W/TDS on a .270
I just sighted it in at 400 yds, then checked the 200,300 + 500
The thing works great, I like it very much.
The problem with adjustable reticles is the person doing the adjusting could make a mistake.
Keep it simple.
Killed a decent Muley at 404 yds in 2007, picked a spot, and pulled the trigger. Point of impact was exactly where I had aimed, to within an inch.