The nose-cone of that LT bullet isn't very difficult to manufacture, about the same as a typical sweater or cape button. With the right machine and tooling they can be spit out by the thousands.
They would be quite 'classy' in brass alloy.

I found that cutaway image while on the chase of the perfect load configuration for my 16-bore rifles.
I've used that stepped-bore feature (done in the photo by way of cardboard) a handful of different ways.
Works for me, and I can see why WR did it with that particular load.

On the SCI convention, I've never been to one.
My ranch is near the convention center, and I'd definitely consider showing up for the sake of meeting some of y'all.
Is an SCI membership plus cost of entry the only way in?
What exactly is the cost of entry? The linked website doesn't seem to address the price of tickets to the event.

Cheers
Tinker