Lee dies. Very nice. Sometimes I have issues with crooked bullets if I am seating certain ones very long, because these don't have the floating stem like Hornady dies. But, they are way cheaper!Also, these size brass for a K31 just fine, but they work the brass much harder than a Hornady K-31 set (which is made only for a K-31 and won't work on the 1911 series)I find that my brass gets worked less for the K31 if I use the Hornady sizer, less work hardening, longer life. I use the Lee sizer for the 1911, 96/11, and K11.Works great.