I know that there are multiple burn rate charts for powders, but is there a primer burn rate or energy chart? For instance, I am sure that Remington, Federal, CCI, Winchester small pistol primers all have slightly different amounts of energy, but which ones are hotter? I can find cup thickness, but not energy. Does such an animal exist?

Someone shared the very chart your speak of quite a while back.

And I foolishly did not save it.

Going back nearly 20 years I had a friend who worked for Winchester. We were talking primers one afternoon and he mentioned that magnum primers really were not more powerful than standard primers (he was speaking generally). He said the difference was mostly in the brisance. He sad that magnum primers had more brisance in that it burned a little longer to more fully ignite the powder. The effect was the magnum primers were better at lighting off larger and more difficult powders to ignite. I don't know if this is the whole truth but it makes sense.

Maybe this conversation?
Brisance discussion

It also looks like the Speer #7 manual had one, probably on page 66.

Also
Here are several charts on primer dimensions.

Charts

Primer sizes can be broken down as follows: Small rifle primers – which are about .175 inches in diameter and .120 inches tall. Small pistol primers – which are about the same size as small rifle primers but designed specifically for handguns. Large rifle primers – which measure about .128 inches in height and .212 inches in width.

The main thing I know for a fact.... CCI #250's are not as hot as a Fed 215 or Rem 9 1/2M. After getting hang fires on a 338 Lapua with CCI #250 primers, I put a call into the techs at ATK. They informed me that the CCI #250's are considered a magnum primer because they are hotter than a standard large rifle primer, but not as hot as a Fed 215 or Rem 9 1/2M. I think the CCI #250 is perfect for powder charges in the 50-55 to 70-80 grain weight ranges. That's about where I use them the most. I also find a lower ES/SD with the 250's than I do with the Fed 215 or Rem 9 1/2M primers. The hottest magnum primers are the Fed 215 and Rem 9 1/2M primers. These are the one's you want for powder charges 85-90+.