>

I'm no expert but this means nothing imo.
Russia is preparing a large offensive for late winter/spring, and they're probably saving whatever ammo they have left for this moment. It's going to be a very tough time for both sides and Ukrainians are going to need every bit of help western countries can offer.
Go Ukraine, strength and honor to you.
They are low on rockets also. Being in Ukraine you really feel how less air raids now compared to first months. >

For artillery, it's probably logistic issues more to than shortage. Iirc, it's estimated that they've used 10/17 million shells, and might have gotten more from NK and Belarus. >

Gun barrels also have a limited useful life.  NATO built a refurbishing depot in Poland, but it is probably more challenging for Russia. >

True. I can't imagine Poland letting Russia build refurbishing depots there. >

God dammit I shouldn't have but I laughed. >

It's okay to laugh. Times are grim, we need all the safety valves to let out some steam. >

I wonder if they are going to beg North Korea for more ammo again. >

They are going to have to at this rate. >

I guess that if Korea wanted to there would already be some. That supply is drying up. >

I was going to say. North Korea has been heavily sanctioned for generations and spend as much of what left over productive capital they have on their nuclear program for (self defense/provocation), I can't imagine they actually have a large and robust arms production capacity that can actually meaningfully help Russia. Sure, emptying warehouses is one thing. My bet is NK is also hesitant to fully empty their warehouses for Putin. Given SK is armed to the teeth. >

It’s almost as if they drank too much of their own koolaid and started believing that they could conquer a country in a matter of days or weeks and never got ready for a real war. >

Do their barrels shrink in the cold? >

They’re so poorly made, they blow up. >

While they seem to be poorly made, it also can happen if they are overused. 
There's a picture of a Polish AHS Krab howitzer in Ukrainian service with a blown barrel as well, for example. >

Yeah, that happened right after ukr got Krabs if memory serves. 
Turns out they had so much need for them that they essentially put rounds through them constantly until the big badaboom happened. >

Yeah they apparently broke an auto loader on a Pz2000 by firing it faster than it was designed to. Keep in mind that the Pz2000 is basically the fastest firing artillery system on the market with the ability to fire off six rounds before the first round even hits the target. >

Looooooooootta people needing fire support in the early days, for sure.