Max shooting distance available to me is 250 yards. 75 minute drive one-way to do that.
Carrying a shooting stick these days and can quickly incorporate into a seated shooting position - on butt, elbows on knees, rifle on stick. How I shot my muley in 2019 (220 yds).
Not stretching to testing anything tho. This is what I do (200-250 yds) to prep for my hunts and will be prepping this year's antelope hunt, starting before too long. If I could physically shoot to 400 at a range, I'd practice out to 400. We do what is available...
Gotta convert all the western states to straight-walled cartridges. Then the critters will have a chance.