Have the Loot Pools Been Changed?

Reaching level 65 as Moze on PC I thought it was time to upgrade my favourite guns. I needed an updated Hellshock pistol so I looked on Google to find the best farming location. Several sites pointed me towards Gigamind at the Meridian Metroplex. Well I was farming for 4 hours and it still didn’t drop. Some guns eg Night Hawkin’, Smart Gun XXL, Brainstormer, etc droped every other round. Is there another good location to try for a Hellshock pistol?

Couple months ago. Use Lootlemon site https://www.lootlemon.com/db/borderlands-3/weapons


Slaughter shaft is a popular place to farm base weapons.