Well, after discovering that my reloads keyhole, there was much deliberation with the smiths at work. What did I get out of that? That Lee's reloading manual and dippers aren't to be trusted, and that I need a scale.
So I'm getting a scale; there's a Jennings HP-50X on the way from ebay... $30. Heck of a deal, shipped priority so I should have it soon.
On recommendation also, once the scale is here I'll be making a dipper for my .38 "mouse fart" loads out of a .22lr case. 4.2gr ought to do it.