I was struggling with range as well when the eoc came.
My goal of 50m rage exp was gonna be horrible after chins became useless, and i wasnt about to go kill monsters for 100k an hour.
My friend told me about a method. it consists of killing waterfiends at the ghorrok fortress (alt. you can do them at ancient cavern for less exp).
I get around 400k an hour here while using dmg boosting prayers, overloads, cannon and titan aswell as royal crossbow with full elite void.
weapons i recommend:
royal cbow>dual chaotics>karils xbow>black salamander>dual rune cbow
the charms are pretty good too. around 200 crims an hour.
BTW, i offer free lveling services and killing these is also available. I can get around 200k exp an hour and 300 crims too. if you want more info check my sig or pm me.