would ranging a friend with low range defense be an effective way of training?

You mean like in the Duel Arena?

 

 

 

No it would be too slow.

wild

No, it would be very slow, as you would keep hitting 0s, and as you know that gives no exp. Your best bet member is men, as herbs and clue scrolls are nice, and free are probably men or chickens, the chickens are quick prayer exp + feathers.

but if they wear stuff that gives negative range defense, wouldn't i hit more, and im more interested in straight xp, im currently 10 range, and either gon try this method or go back to cows :\