Mirror: https://files.catbox.moe/z6gc5c.mp4
Source: https://t.me/operationalcommandwest/40
Translation:
Gunners are not the gods of war, they are the hands of God.
They punish everyone who came to our land. Check out this precision strike on enemy equipment.
This strike was made from a distance of 19 km.
Fantastic!
From the directional explosion it looks more like SMArt155 or BONUS though I could not see a chute or submunition before the explosion.
I think Excalibur would mean much wider circular pattern of shrapnel impacting around.
Edit: 19 km would be in Smart155 range.
Some of the others sources are saying the same thing.