IDK, but that is hardly relevant to the current situation. We aren't trying to one-up each other in a "who is worse" rhetoric content, but looking at the situation at the Russo-Ukrainian front.

From what I get, Western stuff delivered to the Ukrainians is in working order, while the Russians shells seem to have a fairly high percentage of duds - usually an indicator of a fuse degraded by long and inadequate storage.

And if shells frequently fail, so will other long stored equipment.