if your shot is off by one inch at 100, how far off will it be at 200, 300 etc.
example- one inch off at 100, two inch off at 200, 3 at 300 etc. (linear)
or is it exponential 1 inch at 100, 300 4 inch, 600 8 inch ?
what happens at 900 ? nine inchs off, or more ?