The first thing that we need to recognise is what is a Swing High and Swing Low. This is probably the easiest part of price action and bar counting although the whole process gets easier with practice.
That price could be creating a pullback or bias change and as the chart unfolds for you a new high or low could be made voiding the potential range.
There are several definitions of a range one of the more common ones is that you are looking for a double touch of support and resistance. For me this is a little too late in the game as price may not create the double touch as in the example above. With this price action method you can identify the possibility of a range developing VERY early without having to worry IF price does or does not give you the double touch.
As you can see with that definition you would interpret that price is not range bound at all but, you can clearly see visually that price is moving sideways without any definition.