You can get a baffle for the Uniflow and it helps with consistent charge weight. Well worth the 8 or 10 bucks. I don't know whether there's a baffle available for the Hornady.
I made my own baffles for my Uniflows from an aluminum beer can. Later on from proper baffles when I bought a bunch of reloading stuff at a yard sale. The store bought type didn't work any better than my home made.
Paul B.