It's not been said and maybe it's widely assumed, but you can load regular .280 and fireform the brass in the .280ai. You can also use .270 brass. One of the reasons I like the .280 / .280ai is the commonality with the parent case. That being said- I picked up several hundred pieces of Peterson...
I agree I wish there was a deeper dive into specifics like you mentioned. I won’t stop hunting, but I will avoid areas with high concentrations of CWD and test 100% of the animals I harvest.
I read a few things published from the UWYO researchers and it's pretty amazing they've identified 3 separate genome types of mule deer in the study area. One with high prevalence rate of contracting CWD and one with less prevalence and one with zero prevalence. That similarity with the cow elk...