Never heard of it.
Actually I have two “regular” .410 shells, two PDX1 Defenders, followed by two Colt 45’s.
I can dial up whatever lethality/accuracy necessary for the situation.
I made it up based on the fictional 5.56 mm Cherry PIE round in World War Z. It's a round designed to take out zombies, PIE stands for Pyrotechnically Initiated Explosive, according to one of the soldiers.
It has a small explosive and an incendiary component designed to scramble a Zed's brains, instantly stopping the immediate threat with an incendiary component to sterilize the shreds to reduce the danger of spreading infection.
That's called a Dutch load. Hard to get or imagine a better load mix to address a target that goes from an in the open attack to light cover to heavier cover. Excellent choice.