I have a bottom pour ten pound Lee pot that continually dripped until I finally got tired of it. I removed the pouring device, threw it away, and turned a self tapping metal screw into the spout from the bottom. Makes a fine dipper pot, which I use only for casting pure lead or near pure lead. I sort out the stick-on wheelweights, which are near pure lead, and use them for bullet cores in my manufacture of swaged jacketed bullets. I don't shoot rifles a lot any more but I do shoot quite a bit of cast in a handgun. I use wheelweights for that.
My main casting furnace is the expensive forty pound Magma pot. It doesn't leak and it maintains temperature better, an altogether superior machine.