I've got a USO B-25 on a tikka t1x. I use a 25 MOA DIP rail with a 50yard zero. It's got enough elevation (17.5+/- mil) to dial to 325 yds. I would feel comfortable with the 419 30 MOA rail. For standard NRL22 ranges are 25-100. MD may throw a long bonus stage in there and NRL22X changes...