They've been pretty much put on the shelf as no one appreciated the amount of heat exiting the weapon along with the spent case during development. Caseless had cook-off problems.
They've been pretty much put on the shelf as no one appreciated the amount of heat exiting the weapon along with the spent case during development. Caseless had cook-off problems.
As well as problems with extraction/ejection of unfired rounds when a caseless round had been chambered but it was not necessary to fire, and it was washed to unload the weapon without firing it.
There are still some interesting caseless ammunition applications going on in the fields of submachineguns and shotguns. But insofar as the infantryman's primary rifle, the ammunition technology is not developed to that extent yet.