First of all, if you think hollow points are somehow illegal due to an an International treaty we never signed, and that it somehow exercises sovereign authority over me, you are wrong.
http://www.blackfive.net/main/2006/01/army_jag_bans_e.html
Open tip match ammo is very much legal, and NO other authority other than the Constitution can tell me what to do - if it wants to try.
The last guy who tried that was some English king 200 years ago. Again, if you think someone has that kind of power over you, well, you deserve it. Me, I'm a
free citizen.
As for a military caliber, I'll take the LSAT, whatever diameter it is. In the history of ammunition, the one thing that has continued to happen is a downsizing in caliber and increase in lethality - up to a point. In the military, however, it's NOT necessary to kill a soldier outright - if they are no longer shooting back, that's good enough. In order to get them to stop shooting, you have to get a hit, and in order to get a hit, you have to see them. Soldiers work hard at not being seen, and not getting hit.
The study of warfare over the last 100 years has included forensic and statistical analysis. What that has shown is that soldiers aren't always hit by aimed rounds. They get hit by stray bullets simply directed at them, and the more bullets flying toward them, the more hits.
It's really got very little to do with aimed fire with battle rifle calibers based on the .30 bullet. In fact, .30 battle rifles are NOT the best way to get results. Intermediate calibers that a soldier wants to fire, and large quantities of ammo to go with it are what works. Like it or not.
The LSAT is basically a telescoped round in a plastic case, weighs 40% less, and lets the soldier carry 40% more for the same weight as brass cased. More ammo means more ammo fired, which means more hits, which means less return fire, which means easier manuevering and the ability to tactically overcome the opposing force.
And yet, some people want to take a step back in time on the preposterous reason that the other soldier needs to be killed outright. That means using more powder, a larger bullet, more training, carrying less ammo, and trying to shoot a single bullet at a time at another soldier doing everything they can to not be seen. What part of "Didn't we already try that?" don't they understand?
For those who want a better insight, read up on the Battle of the Bulge, and focus your study on the American units equipped with Garands who faced German troops equipped with STG44's - the full auto assault rifle in 8mm Kurz. 8 round clips in single shot vs. 30 round mags in full auto? The obvious historical fact is that we got pushed back despite our brave, valorous attempt to resist. Frankly, we got our butts kicked.
The side with more bullets in the air can prevail, ask yourself, do you really want to limit yourself with some antiquated notion based on testosterone, not fact? Fine, but don't ask the pros to do that. They'll just smile and use what they know works. After all, it's their job to succeed.