Where is my ammunition

When I looked at the game again, I noticed that I can no longer buy HPBT ammunition. Will it come back when Gunny is level 2 or higher? Or will it not come back at all? I always liked to use it in the starting city and afterwards I still liked it. Why is she out? First my M193 and now my HPBT, please madfinger bring one back to me.🥲😢