Wow Gramps, way to go!
What's the rim thickness and rim diameter?
Is the chamber tapered? I'm guessing it's bigger in diameter up by the rim (base dia) than at the case mouth.
For your photo posting excercise, we're going to have to get you set up with an account on a photo hosting website.
I use flickr.com and it's super easy.
just go with them or do a web search for free photo hosting and choose one.
The thing here is that it takes server memory space to show a photo on a therad like this. when you see an image here on the site, what's happening is essentially an elegant linkage of resource.
Start by getting set up on a photo hosting site. It's super quick and easy, the process will be explained at the website you choose.
Then I'll walk you through showing them off here...
--Tinker