I agree with 45 Auto. Caseless ammo has so many advantages.
It can let you carry more ammo and at less weight. And that's only the start. Imagine if ammo was pliable so that you could squish it down in your pack. A soldier could carry a lot more ammo.
I understand all the problems with the current state of caseless ammo. I agree there are problems, lots of problems currently associated with caseless ammo. I just don't understand why the problems aren't solved.
It's like airplane/jet engineers saying, "oh its way to hard to break the sound barrier, we tried that many times and we had too many problems: the plane would break apart, it would run out of fuel too quickly, the pilot got dizzy, too many Gs for the human body to withstand, the materials don't exist for safe supersonic flight. Propeller technology is the way to go! look at these new titanium propellers!"
It's like the state of ammunition hasn't progressed at all. It's still a dam case with a propellant, powder, primer, and bullet.
While we're on this topic...why are bullets so big? even a 55 grain 5.56 bullet is heavy, when you carry 300 of them, or a belt of 7.62, like Theo says. Imagine if you could shoot a 1 grain bullet. It would save a soldier so much weight. And since Force=Mass x Velocity2, a smaller bullet would be geometrically more deadly. I know they're trying to mount a rail gun on a military ship, and a rail gun uses atomic particles that are much heavier than a single grain. So if our gun manufacturers were to do some real R&D, we might one day have caseless ammo that shoots a deadly 1 grain bullet. Imagine that for the soldier of the future.