Drop (not confirmed)

item	chance ↓	amount
Adena	70.0%	466–1087
Corroded Weapon Fragment	1.6%	1
Corroded Mid-grade Weapon Fragment	0.3%	1

Spoil (not confirmed)

item	chance ↓	amount
Corroded Weapon Fragment	1.3%	1
Corroded Mid-grade Weapon Fragment	0.3%	1