Critical Distance

Critical Distance is indicated by the shot expanding fully and creating a circle indicator.

Heavy Bowgun has a much larger impact animation while in the first half of Critical Distance on standard shots making it easier to see when you are properly spaced. This adds an extra 0.3x multiplier to damage in that zone (e.g. 2.0 in first half of Normal Shot range, 2.3x with an Origin or Zenith Piece and G Rank Weapon, etc.).

Holding down the aim button/key will show a rough indication of Critical Distance and hits within Critical Distance will do a large flash while those outside of it will do a small flash.