I was reading a very good book called "Infantry Small Arms of the 21st Century" by Leigh Neville (very impressive read where he discusses ammunition extensively before he discusses the weapons) and in the portion on handguns he mentions the new XM1153 "special purpose" ammo for the US military which appears to be a 9mm JHP.
Has anyone gotten a chance to shoot these rounds or compare them to commercially available JHPs? I am wondering if they bought these from a manufacturer off-the-shelf or did they actually invent something new.