I'm convinced that ammunition, powder, and primers are nowhere near as sensitive as many claim. I have handloads from the early 70's, (50+ years old), that go bang today, just as they did a half century ago when I loaded them. I'm currently shooting Trap with shotshell handloads using powder I bought in the early 90's, (over 30 years old). Same deal, perfect performance.
I currently have 3 cases of Greek, CMP .30-06 ammo, (HXP 67), that was produced in the 60's, (60+ years old). And it performs like the day it was made. Most of my ammo is stored in my attached garage that is in the upper 90's in the Summer, to the low 50's in the Winter.
https://i.imgur.com/kXX6Aje.jpg?2