Yup I don’t have the pistol rotors for either of the Uniflow measures just large ones. The Uniflows are just as accurate as the Hornady ones with large rotors.
These guys make replacement/better hoppers for the Hornady measures:I have 3 of the Hornady ones. I like them but be careful when emptying them as one of my earlier one has a loose fit on the plastic hopper and I keep my hand on it so it does not fall off. The newer ones appear to be glued in and one of the hoppers developed a crack down the side. Hornady sent me a new hopper but it was no fun getting it removed and then getting the epoxy they used off the unit were it was glued in. Not sure how they attach the hopper now. I have both rotors for all 3 of the units, 2 units are used on my only ap press the other one is a stand alone unit