http://www.globalsecurity.org/military/systems/ground/m29-
oicw.htm About the XM29, the weapon scheduled to replace the M16 in
2008. Fires 5.56mm rounds and 20mm high-explosive rounds—the HE
rounds can be set to explode in the air above the target, go through
windows and then explode, etc.
(Sometimes I wonder if my (weak and reluctant) support for the war is tainted by my interest in the military, and weapons. I was recently assured that this is okay because I’m a boy but … I still have my doubts.) 17:24