beltfed - in perhaps 1980's I bought a .338 Win Mag - about all I bought for ammo, then, was Federal - I actually got two elk with two rounds of that factory stuff. I have reloaded that brass at least 4 or 5 times - is probably a hundred still here in my stash - can not say that I noticed a primer pocket issue - but you are not the first, at all, to post that today's Federal brass is pretty soft - although I am on second reload for some Federal Premium bulk brass (that I bought in 2020) for my grandson's 243 Win - not seeing those oversize pockets yet, with CCI 200 and Fed 210 primers. But last bag of red-labeled W-W 22-250 was really grim - about half dozen had folds in shoulder or necks - about 30 out of 100 would not even chamber into my rifle because the case mouth looked like a water pitcher pour spout - as if tilted off a forming tool before fully withdrawn from it - as if Federal and W-W in "race to the bottom" for "quality" and hoping nobody can remember what "good" used to be like.