They still show them on the Winchester Ammo page
https://www.winchester.com/Products/Ammunition/Rifle?filters=%7B%22ids%22%3A%5B%22%23b-16%22%5D%7D#page-2I use the same same ammo in 7mm and have since the late early 90's, maybe early 2000's. When you find it, just buy 10 or 15 boxes and be done with it. I bought a case when I found it shot better than anything else in about 2001 or so and then 5 years ago I bought another case because it was available and I didn't want to run out. It shot exactly the same, that many years difference. The days of buying ammo by the box are long, long gone.

This is what I do, I have a decent supply of 300 WM and 7 MM ammo.
I have also had decent luck with their XP and Expedition ammo.