Best place to bot range?

No offense, but you seem to want the fastest exp, but don't want to chin, which is just stupid. It is the fastest range exp at the moment. You could always try tanking giant spiders, I'd assume they're good.

 

Nothing beats Sw

 

Moss Giants with good (mith+) darts/knives and range pots.
Should be constant knife throwing with 150-200k profit.
The alternative is ghouls at no profit.

Both of these spots should net you max knife/dart xp as the spawn is endless.