This is a fully printable 1:1 scale M829 120mm tank round. It is excellent for educational purposes, movie props, or just a super cool conversation piece. I created the 3D files from scratch in CAD by utilizing as much publicly available documentation as I could find. In the real world, this Armour-piercing fin-stabilized discarding sabot (APFSDS) tank round is capable of penetrating 540 mm (21 in) of rolled homogeneous armor (RHD) at 2000m, traveling at an incredible 1,670 meters per second (5,500 ft/s).