Jeff Siewert

And the, the rifle is basically stock, um, not quite stock.

When I first got it, I had an issue with, um,

headspace dimension that was set a little too short.

I sent it back to Ruger.

They reset it to plus two.

I'm happy.

And those, those groups are the groups that got shot with the plus, the plus two setting on headspace.

So if you, if you ask me if headspace is a big swing on group size, I would tell you not, not a big factor.

So have we got Mike, if we got the, excuse me, have we got the case hitting the chamber wall?

I don't see that.

Oh, right.

It was under 5.56, as I recall.

Oh, so it's part of that whole... It was MP4.

MP4 extension, I think.

Odor says he's got an old .308 restricted by the cartridge.

Freebore is extremely long.

He can't play it around.

Yeah, so what you see here on the case chamber interaction is...

So the axial ring location midpoint, and that's inches from the base of the cartridge, and the radial displacement at 0.4, that's the gap that the case body has to close in order to seal the chamber.

And we're stepping through in time here, and...