Byzantine chain pattern

If you have any thoughts on the ideal gauge of wire to make such a
chain I'd appreciate it. 

First off, if you’re having trouble finding oval nails, you can
always do it the old fashioned way - put two round mandrels
together, either by solder or just clamp them in a vise. Here are a
couple of links about wire dimensions - it’s called the “Aspect
Ratio” - the relationship between wire size and circle diameter -
You’re making me work, Helen

http://tinyurl.com/3dmgrt
http://tinyurl.com/2kjotg
http://www.spiderchain.com/samples/chart.shtml

The next is a search result for aspect ratio on M.A.I.L - which is
everthing you want to know in the main site, too:

Hello Helen,

The ratio John is referring to is called the Aspect ratio, or AR. It
is the relationship between the wire thickness and the inner diameter
of the ring. Often it is calculated using the diameter of the mandrel
the wire is wound around, but given the differences among tempers of
sterling silver and among different metals, in- cluding Argentium,
it’s always a good idea to test a short length of it before
committing to make or acquire a large number of rings for a project.
More info on aspect ratio is available at www.urbanmaille.com and
www.spiderchain.com. Spider of Spiderchain has made DVD’s and they
are very good. Aislyn’s tutorials from her site are also very good. I
have made plenty of chains from their instructions.

I have soldered only some (less than 50 %) links in my chainmaille
chains.

Connie

I’ve been looking for directions for the Viking Chain pattern and
can’t find it. Will someone out there lead me in the right direction?

thanks,
Jennifer
Ventura, ca

Dear Jennifer,

I was pointed in the direction of this website the other day:

Hope you find it useful too.

Helen
Preston, UK

Try looking for Viking Knit Chain. There are lots of spots to google
there.

M’lou