Overview
Finding those gold weapons will be a tedious process but It will make it easier using these tested methods.
First things first
This will be time consuming process based on the percent of the drops. I know most people might now have the patience to sit and pick locks or kill mobs to get a weapon to be considered “ultra-rare.” I myself have a stack of them because I wanted to see which ones that you could get gold and I found that most of them (with the exception to unique) are gold. This includes the pre 1.5 patch weapons. There are also Gold guns (not sure if that supposed to be the case.)
Loot tables and Percents
I spend my entire day playing around with the loot tables to make gold weapons spawn more in lootable things.
First of which gold tier weapons have a chance to spawn .1% of the time during a hunter game win, killing of a goon or a demonisher, and hard or very hard containers (lockpickable). Also the loot table shows that the weapons are spawning in the Hard and very hard containers even though I managed to find a few in medium containers. Traders also have a .1 chance to sell a gold tier weapon (good luck with that)
Here is a personal loot table showing the results of my findings of a gold weapon in-game.
Please note I played with the loot tables to make that .1% into 30% so make it easier on myself:
Biters (walker zombies) 0 Gold Weapons out of 258 Zombies
Virals (Runners) 0 Gold Weapons After 180 Zombies
Spitters 0 Gold Weapons after 120 Zombies
Screamers 0 Gold Weapons after 52 Kills
Goons 12 Gold weapons after 112 kills
Demonishers 17 Gold weapons After
NPCs (Rais guys) 0 Gold Weapons Found
Shops 1 Vendor sold a Gold weapon (Very ODD)
Containers (non-locked) 0 found
Containers (easy locks) 0 Found
Containers (medium locks) 2 Found
Containers (hard locks) 8 Found
Containers (very-hard locks) 23 Found
Vans (non-locked) 0 Found
Vans (easy-medium) 0 Found
Police Vans 32 Found
Bags (non locked and easy loot) 1 Found
Lockers (very hard locks) 5 Found
Other Values that have affected this experiment
Now this is the question most people want to know about the loot. Some of these thing may affect whether you get loot or not.
My Game was set to hardmode+ (New game plus on hardmode)
Normal most Gold loot – Not tested
Hardmode (Not to be confused with hardmode+) – Not tested
Conclusion
I hoped this guide helped you in some way and I hope that you can find yourself a gold tier weapon in the game. There fun to have and some have a damage that can goto a whopping 3987! Crazy numbers! Good night and Good luck. You really will need it.
Please note that I will personally try my best to update this as much as I can with information and more experiments.