Jeff Siewert

And then the last one on the far right-hand side is made by Shellshock, and it's an aluminum base with corrosion protection coating on it with a steel, a drawn steel cup that's kind of crimped in the primer pocket.

So it's a really interesting approach to solving the let's save some weight necessity for the military, okay?

And...

For better or for worse, some of these...

notably the steel and the plastic offerings and the aluminum steel offerings, you're going to get higher bolt loads as a result of the cartridge case not being able to share as much load in friction between the case wall and the interior wall of the chamber.

So as the case is pressurized, there's a fair amount of load that can get dumped out in friction

through that case wall, the body of the case wall, that interface.

So the real problem for us reloaders and shooters is the fact that the gun life decreases pretty rapidly with case chamber friction.

And the next slide is a video, and we'll have to come back to that one.

But basically, it's an animation of the cartridge case expanding out to contact

the chamber.

And Mike, I think we'll have to come back to that.

I don't want to, I don't want to interrupt while we're doing this.

Okay.

Okay.

And, and basically the, the, the case mashes out to hit the wall.

You can see, you'll find, you'll see exactly where the case hits the wall.

And then the, the composite structure of case and chamber deflects outward to seal the bore and

And then it contracts, and at the end of the interior ballistic cycle, you'll see the case wall shrink to fall out of contact.

So it's a pretty interesting animation.