Here is pic of a first time shooter of specialty handguns @ 700 yards and at 900 yards. FWIW it is my MOA.
The MOA has interchangeable barrels (threaded). Basically, a switch gun concept with a neat way to keep your headspace correct. Using a Bower Rest System. Chambered for 6.5-284.
My daughter and my son both have used it @ 1k and it is my daughters deer handgun (use a different forend for deer).