I found a bug with the addition of alternate ammo. I buy the alternate ammo for my main rifle which uses .308. After reloading my save, the ammo is gone. Lost 85 credits for the ammo. I did an experiment where I bought more, loaded it into the rifle. So 5 in the rifle and 15 for reload. Restart the game. Now 5 in the rifle and 0 for reload. Swap ammo for primary, lost those 5 rounds.

Long story short, unused alternate ammo disappears after restart.