I was reading on the wires that the Lee molds need a bit of work to be top notch. I've used them for years but am always ready to learn something new.
The author said to use an awl to open up the vent lines between the bullets and to put some pumice or similar material on a bullet, put a screw in the base of it and chuck it up in a drill. As you slowing run the drill you close the two sides of the mold so you end up polishing the insides, giving you bullets that fall out of the mold.
I tried it and had good success with the polishing but decided to use my sandblaster to clean out the vent lines. A couple of seconds and I got all the drop out spray cleaned out between the bullet molds. I put bullets in the cavities to keep from sandblasting them. Want them to stay polished. Did two 6-gang molds and must say that the bullets I used weren't too much good after that--back in the pot. But the molds are as clean as the day I got them.
Tomorrow we'll see if all this work makes a difference.
ÇR