As reloaders. We understand that there are minimal differences, in performance, between standard size rounds and their shorter cased counterpart.
30-06 and 308, 280 and 7-08, 300wm and 300wsm being a few that seem to show up regularly in topic.
With the exception of a very, very slight difference in fps and fpe. There is virtually no difference in field performance, on game, at typical shooting distances with typical hunting bullet weight.
Now, with the heavy weight bullets, in each caliber. The shorter cases do fall a bit shy in performance, but most don't use the heavy for cal weights for their hunting.
Why is there doubt in whether a 308 or a 7-08 will perform as well as a 30-06 or a 280 or any other comparisons, on game?