Best way to train range is if you got void (assuming you can use it) and use knives (iron), a MSB with iron+ arrows, or a bone cbow. You can easily gain 25k exp an hour, if not more. Do that till 70 or so. And you should chin when you hit at least level 70. Lower, with accurate, if you have void. I'd say chinning at 65 Range would be okay if you have void and use accurate.