Lee Loadmaster Primer Tray - Fits Winchester boxes

thingiverse

I used red_rider95's primer tray as a model and created a new design that fits CCI and Winchester primer flats perfectly. No more struggling to fit a square flat into a round tray. The mouth of the tray needs to be trimmed if you have any excess material, but once done, it prints smoothly. Now, when flipping primers, I can do so quickly - no more waiting for over a minute, shaking the last one into place.