Meanings of silver buckshot in English

He did that even as my silver buckshot pellets penetrated his skull.

I shot Hood repeatedly in the chest, silver buckshot tearing right through him.

So many people are looking for a silver bullet, when in fact the solution is silver buckshot.

I couldn't do it, so I passed the time by picking silver buckshot pellets out of my armor.

I fired as fast as I could, putting shell after shell of silver buckshot into the thing to no avail.

As climate campaigner Al Gore has said, "there is no silver bullet"; what's required urgently is " silver buckshot" where all have to make their contribution.