They’re fantastic. I prefer them over Talleys, just upgrading to 30mm rings of the same kind.
They have some small paint(?) chips, but it’s only cosmetic. I’ve never had to lap any pair of these I have had.
They’re 6-48 screws, so normal 700 thread pattern.
$65 to your door. They run at $99 MSRP.
Whoops. Apparently I never did. Here it is:
https://jwoodscience.springeropen.com/articles/10.1186/s10086-023-02079-0#:~:text=Oxidized%20reaction%20product&text=As%20the%20reaction%20reached%20completion,so%20the%20solution%20pH%20increased.
you may run into an issue with too much acid for the solution. I think I posted a link to a study done on the ebonizing process. It has all you need to know about it.