Edit- not about the MDR, sorry. Just one of their bolt guns.
I haven’t put more than 100 rounds through one, but have fired one at an event they put on here in the local desert where they had a bunch of DT owners out. I watched a few of the guys change out barrels and swap calibers - that was a pretty straight forward process and I could see the benefit of that. Nice guns. The trigger on them was ok, but I felt it could have been a little better. I won’t share too much of an opinion, due to my less than 100 rounds. If it’s in the budget, and from the looks of things it is...I say grab one and tell us all about it. I’ve looked a few times and considered buying one, but it’s not in the cards at that price point for me just yet. It’s not the MDR, but hey...they make a nice rifle.