A VX3 with side focus would be the last thing I'd have on a hunting rifle. Particularly with a .257 Roy, I don't see where you need any of that for long range game shooting.
If a 4.5-14X40 turns your crank, I'd get the standard VX3 w/o the AO or the side focus. If you are concerned about parallax at the higher magnifications and longer ranges, have Leupold reset the parallax for 400 yds. E
