I’m building a super lightweight mountain hunting rifle and because of the ammo shortage I’m starting to question my caliber choice. I was firmly set on the 280ai but I can’t find a piece of 280ai brass anywhere. I don’t have dies and they are providing hard to find too. I am starting to lean towards the old 284 Winchester. Good quality Brass seems to be available from Norma, Peterson and lapua and for some reason it’s in stock. The dies are in stock too. Here’s the question. I’ve never shot a 284, I’ve had a 6.5-284 but never a 284. I don’t know what kind of performance I can expect. The rifle will be built on a long action either way so I will have extra room for the 284 to breathe. What kind of performance difference should I expect between the two out of a 22” barrel with 160 class bullets?