I’m sure most Americans have never heard of this 12g. 28gram (1oz) slug. The Balle Wonder. This is a strange design that looks like a cross between a washing machine and an apple slicer. The internal ports are not there for any aerodynamic reason, but to act like a multi-chambered, giant hollow point. The slug breaks into many pieces when it go through fleshy material- it basically blows up. This causes maximum internal injuries, but minimum over-penetration.
Thank you David for sending these for us to demonstrate!
Here is his Youtube channel: