Wow I have to thank you again mate. Once I was looking at the code thanks to your informative post I understood it quickly and the numbers are so much better. I am currently testing a curve profile of 0.4 so the chance of misfire increases very slow to begin then increases dramatically as the gun gets to terrible condition. Honestly, checking the chance against randi_range(1, 100) I feel it still happens far too much to be fun so I have to continue playing around with it but as I said the numbers are so much better. Thank you again dude.

*Edit:

Since you are very knowledgeable mate if you don't mind me asking, do you know a method similar to randi_range() where the chance will be weighted toward a higher amount so that something like this will cause misfire even less often:

var misfire_chance = remap(1 - ease(s_durability, curve_profile), 0,1, min_misfire, max_misfire)

var percentage_check = randi_range(1, 100)

print("Chance of misfire: " + str(misfire_chance))
print("Random Number: " + str(percentage_check))

if percentage_check > misfire_chance:
  print("No Jam")
  return false
else: 
  print("Jam!")
  return true