If the incriminations are indicated directly on the measure, we could say that i
t's self-incriminating.
Anyway, sure it'll work, but the issue you may find will be the diameter of the measure. For a revolver you'll probably want something smaller, so it's easier to pour into the little chambers close to the frame.
I tend to use a powder scale to verify the measure's increments, weighing real black powder to see how close it comes to the indicated charge weight. You'll find that one powder measure often disagrees a little bit with another. If it's indications are very off, it is indeed self-incriminating even if there is the 5th amendment protection against that sort of thing
And as I recall, and although I haven't tried it, some people on here have measured the weight of 2F verses 3F from the same measure and it's not enough of a difference in density to be particularly important. Also; charge weights from the same measure will vary from one or two to several grains, from throw to throw, depending on how it's poured into the measure, or leveled off at the top, etc.