Impulse purchase, $13 at the grocery store!

I’m not schooled on all these new name powders. I need a cheat sheet “Comparable to 4227”, “applications similar to Unique” etc. you don’t NEED one every year but occasionally they’ll focus on a round and publish an informative article. I have a little interest in the .338 ARC and powdered cast bullets. Feels good to have a real magazine in the lap.