Summary This is a bullet feeder die & drop tube for reloading .223/5.56x45mm. I made this for 55 grain FMJ-BT bullets so it may or may not work with higher grain bullets. All my cases were run through a Lyman neck expanding die and they fit the drop tube without any issues. The locking nut and Hornady LnL bushing can be found here on Thingiverse. The bearings used are 6mm plastic airsoft BBs. LEGAL DISCLAIMER: Users assume all risk, responsibility, and liability whatsoever for any injuries (including death), loss or damages to persons or property (including consequential damages), arising from the use of any portion of the files posted. By downloading these files you are agreeing to the terms and indicating that you understand/accept them. I am not affiliated with Hornady, Lee, RCBS, or any other company producing reloading materials, tools, etc. Print Settings Printer Brand: Creality
Printer: Ender 3 Pro
Notes: Print the drop tube & die with the top of the model touching your build plate. You won't need supports if you do it this way.