It’s nice to see that even though we took away its status as a planet, we’re still showing Pluto some love.
The big bad blue-tipped boy towards the far right is the 25x137 M793. Apparently, it’s commonly used for weaponry mounted on boats and ground combat vehicles… like tanks. The M793 is the tracer variety of this shell size and is visible up to 2,000 meters. Another version, the M792, is a high explosive incendiary with tracer and self destruct.