Simple .22LR Box With Sleeve

Simple .22LR tray with friction fit sleeve.

This is my first scratch built creation. Built in SketchUp 2017. Several test prints before getting it right. I realize that I could have likely found something like this already on Thingiverse however I need to learn how to do the design work myself since I have just been printing other peoples creations for years. Printed on my Reprapguru Prusa I3 V2 at 150 microns. Tray was printed with 3 perimeters (became 4 after slicing) and 0% infill and