No explanation as to why monometal bullets are needed, didn't think Texas was lead free?

However it would not be hard to setup on a small lathe to spin off 4 or 5 thou from .323 mono bullets.
A little bit of work but an option to keep a .318 calibre gun shooting with monos if these are required.
In similar fashion I turn down a gas check shank on plain base cast bullets for my 404. Can do 100 plus bullets in an hour on a small lathe using a simple setup.