step 1: get mage to 85 for teleblock especially if you pk in a clan
step 2: balance out strength and range, i like to have my range 5 higher then strength due to the strength potion bonus will somewhat offset the 5 level difference
step 3: i like to wear green dhide chaps, green dhide vambraces, my p2p mage robe top that looks cool but wont add mage bonus
most people just wear iron chain body though, and finally for a hat you can wear a coif or i like to wear my p2p mage hat.
for a cape, teamcape will do.
inventory should be: 2h, strength potion, 60-80 addy arrows on quivel or w.e they call it, runes for teleblock if you have 85 mage, and lobster or swordfish should fill out the rest of your inventory.
also a battle strategy that hasnt been mentioned is to eat and quick range your opponent, eat then take a couple steps back then fire, should fire quicker then just standing and eating, then firing.
you should get the animation of doing a 360 then firing an arrow.