Been out making some bullets, or boolits I guess on here, and wonder how on earth anybody gets along without a thermometer. This was my third session recently and unless I was at about 725 degrees I had wrinkled bullets with this batch of lead. All 3 times it required a different setting on the Lee pots to accomplish the needed temperature. And this was in a heated shop. It'd sure have been a guess if I hadn't had one!
I can't quite justify the cost of PID's but I can sure see how they'd be a dandy thing to have.