Propane torch & a coffee can 1/2 full of water has worked for me for the past 3 years or so. Let 'em air dry, size 'em up they work fine.

I also have a gadget to hold the case in the flame without causing toasted finger tips.

A lee case holder thingie attached to a nut driver. Gives me something to do at night beside drive my 'ol lady nuts. Do a search here. You'd be surprised at the info on that subject....