They must be running low. Read that planners never get the ammo/fuel mix right.
NATO Intel does not have accurate numbers of RU ammo reserves - artillery/tank
I have seen photos of fields with hundreds of craters from RU artillery attacks
They are burning thru stocks.
Next thing is barrel replacements - tank/artillery
As the barrels wear accuracy is sacrificed (not sure on that)
Not sure if a badly worn barrel can have a shell explode inside the barrel?
I have seen multiple reports of RU air lift coming from Syria. Many ME countries purchased Russian kit
While they have made modest gains in the east. Russian losses had to be severe.
Possible that UAF has significantly impaired Russian ability to mount offensives.
In the past month or so, Russia has improved their ability to combine air/land assets
That said Russia appears to not have the ability to manage a large offensive
When they take Donbas, I think Russia will dig in
Hopefully UAF receives more HIMARS as they are deadly and highly accurate.
Taking RU artillery out of the mix is critical for any UAF offensive, which I think will happen first in the Kherson area
It is becoming clear that Russian assets are substantially depleted, from soldiers to kit
NATO has to up their game before public opinion on the costs affect support
Read that a fair number in Italy/France/Germany want this to end even if Ukraine loses territory
If the barrels get worn out, accuracy goes to hell, the projectile wobbles in the air.
Range goes to hell, because propellant gases in the barrel can bypass the projectile.
Explosion of the projectile in the barrel is possible, getting wedged.
And they have a ammo shortage, why would they need to get it from their Belarus storages.
I think Russia fooked up big time. They thought the could just walz all over the Ukraine, a walz in the park.
They did not prepare for this to become a real hard core war.
I always liked General Powell's approach, the reluctant warrior, if you go to war, you always prepare for real war, not for a push over.
War is a very serious business, not a joke and you always have to be prepared that your enemy might throw you a curve ball.
That is where Russia failed, arrogance, stupidity, overestimating, bad intell?
Who knows.
Even the choice of name, Special Operation, shows the problems. A SO in military terms means small teams, going in fast and coming out even faster.
What you call something has a effect on the soldiers. If you call it war, the soldiers know it will be rough, bloody and they can prepare for it, its a mind game, too.
A SO means short, in and out, over done with it.
I think all of that will cause Russia to lose the war