Ageing.

This is coolbert:

"They [Moscow] have drawn from ageing ammunition stockpiles, which does indicate that they are willing to use older ammunition, some of which was originally produced more than 40 years ago,"

"Russia Reaching Out To North Korea, Iran As It Burns Through 40-Year-Old Ammo: Pentagon"

From www.zerohedge.com the article BY TYLER DURDEN | DEC 14, 2022.

"The Pentagon this week is suggesting that Russia is growing increasingly desperate in maintaining steady ammo supplies, with senior officials describing 40-year old Soviet-era ammo being used, claiming Moscow is turning to countries like North Korea, and relying increasingly on Iran."

"This makes it potentially faulty, unreliable, and even dangerous for the Russian troops operating the heavy guns, the official described: 'In other words, you load the ammunition and you cross your fingers and hope it's going to fire or when it lands that it's going to explode.'"

See within context of World War One the British shell crisis of 1915: https://en.wikipedia.org/wiki/Shell_Crisis_of_1915

See additionally the comments of a Soviet / Russian general staff officer the relative inability of Soviet / Russian industry to replenish munitions during a time of War:

https://militaryanalysis.blogspot.com/2022/10/replenish-iii_26.html

Hey nobody ever said any of this war fighting was going to be easy did they??

coolbert.