This might be well known but I find that it has died out quite recently and it is definitely worth doing again in this economy. Especially with the current prices of cannonballs being so low Requirements: -40 Prayer (Doesn't have to be higher) EDIT: CAN BE LOWER -Multi-cannon & about 1k cannon balls (can be less, can be more) Method: Go to Varrock, the mining skilling place with the dwarves. You can be brought here either by teleporting to the city Falador and walking past the party room, or by going through Skilling > Option 2 > Mining > Falador OR (Fastest) do ::mining in chat Bring your multicannon and cannon balls, with as many prayer renewals as you can. Summoning helps through Pack-Yaks etc, but I want to keep the requirements of this method low. Basically: All you need is a cannon, balls, prayer restores and 40 prayer/the ability to safe. With this, you can AFK the dwarves with your cannon, staying in a safe spot if you don't even want to pray getting around 1 hand cannon an hour. Profit: Taking away the costs needed, you will make around 700 million GP an hour minimum. This method is especially profitable in the current economy, with cannonballs being so cheap. I would abuse this ASAP while the spot is still free. Stock up, stalk the spot and farm that sh*t Good luck!