I understand that, and agree to an extent. When energy is concerned I look at it like this. Let's take solar energy (lasers) for example, since as far as our intents and purposes are concerned the suns energy is limitless. I could make 2 different solar arrays. One very high tech with the best part's available designed to be super efficient. Then I could make another one, with scrap parts and not worry too much about it's design or efficiency. They both use the same energy source, yet one clearly pumps out more power than the other.
Or how about fire (plasma...), let's say I dip a match in gasoline and keep one regular. I light the regular match. It does it's thing as usual. Then i light the gas dipped match, it damn near blows up... if it doesn't actually blow up. They both use the same source for energy, the first match just had an additional catalyst. But it didn't need an additional match (ammo) to get there. Energy can be amplified and converted all sorts of ways from the same singular source. When energy is concerned it's about the the process in which it does what it does and the quality of it's "source" The ammo should reflect that. You don't need more to get a bigger bang with energy, you may just need a different process of extracting said energy.
Nice job explaining that for anyone that didn't understand. Let me just add something to it.
The logic that more ammo = more damage is inconsistent. If this was the case, then all guns that use the same ammo MUST do the same damage. But yet we see weapons that use the same ammo, do not have the same DAM, such as a regular weapon compared to a unique version. I can throw a rock and hit you in the head and it could really hurt. My grandmother could also throw a rock at your head, though I doubt it would hurt as much. Even though we use the same ammo (a rock) we are using the ammo with varying vectors, which changes it's potential to hurt as much as it could.
Also, just to comment on Energy Weapons again, most people here say they aren't very good. While you are entitled to your opinion, I respectfully disagree. It is true that a few of the Energy Weapons are clearly less effective than their Gun counter parts stat-wise, but their actual applications vary greatly. Lots of people have been throwing out comparison numbers for things like weight, DAM etc, but actually using the weapon in game provides a different perspective.
I have nearly hit 30 with my current EW character and I have never run into the problem of not being able to kill something. Deathclaws, NCR Rangers, BOS, all of the Legion Camp. I truly do wonder if anyone has gotten past 15 with an EW based character. EWs seem more than adequate at getting you through the game, which is really all they must do. Even if every Gun weapons could kill every character in one shot, and energy weapons were still in their same state, they would be fine. Unless you cannot complete the game due to their lack of killing power, they are doing all they need. I have never personally seen an instance when Energy Weapons could not handle the task at hand, and until that happens, they are fine in my eyes.