Article.

Is that a silencer on a fucking Anti-Tank rifle?

Yeah that's why i clicked into this. 20mm i think. Wow

Though it was a small mine sweeper roller with the angle next to the truck. But then none of that looked right

I was curious, so looked this up:

20mm projectile is approximately .787 caliber. Also, 20mm is apparently the entry-level where a weapon in this size moves up from being called a gun to being referred to as a cannon. So there's that.

20mm categorization is more of a convenient shorthand than a universal rule. 20mm anti-tank rifles were during their heyday known as rifles. A modern example like the Anzio is also known as a rifle.

Maybe the title or attached article can clarify the size of the round.

I just saw Lahti then went right to memory where i saw one on Sons of Guns episode and was trying to recall.

But thanks for trying to make me look like a jack ass.