First the issue of hollow pointed balls. No, they aren't pointed, nor are they fully hollow. However, wax is no where as dense as lead, and when it cools it shrinks from the center out. This causes the channel in the mold where the sprue would normally be, to pull back into the center causing a cratered effect. In essence, you have a ball with a crater, resembling a hollowpoint. I hope it is now easier to picture what I'm talking about.
I would like to find a way to extrude the wax into cylinders, however, there is something to be said for using a ball mold in that it keeps the whole experience a little traditional, and one can stand at the kitchen stove and do it without fear of lead poisoning. It is great fun and with a light load of 10 grains of replica powder like 777 or Clean Shot or Clear Shot, you don't get the sulphur smell and you get less smoke. You do get plenty of flash and bang however. This is as safe as "simunitions" used in law enforcement training. If you have a concrete block or poured basement, you are safe. Some municipalities have laws against the discharge of firearms in city limits except for self defense in the home. So in certain areas there might be a technical violation of a law. So, if you do it, I wouldn't tell anyone about it!
Next, I'm going to try it with my .36 caliber long rifle.
Dan C