January 28, 2022 Update: This week I've mostly been working on editing photo books of my outdoor adventures, as well as working on some minor home improvement projects.  I also printed another batch of .45 caliber sabots.  My current design seems to work ok, so I'll probably post the stl file on my website (idahoanshow.com).  My BR-15 project is temporarily on hold because I need more filament for my 3D printer.  I have some filament on order, which was supposed to arrive yesterday, but it hasn't shown up yet.