I have used it in my RCBS powder measure and it works fine. The grains are quite a bit bigger than H110/296.
One word of caution - Don't leave it sit in the plastic hopper of you powder measure. I had one melt from one of the compounds in the Lil-Gun. I have left H110 in there for days on end when I was doning a lot of pistol loading, but just a few hours with Lil-Gun is enough to etch the inside of the hopper.
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