Thanks Buckbrush.

I have not seen any disk profiles so I don't know what size I will make..
I'm thinking of a custom tap of say 32 TPI, a disk diameter of approx .650" or larger, heat treated etc.
These disks are meant to guard against primer setback on the face.
I don't have replacable strikers on my gun.

pic or sketches would be helpfull.

Regards,
Tom