Soooo its back to finding a peep sight. The williams I purchased (marked for a savage 99), holes do not line up with the factory drilled rear sight base holes. They're .540 center to center. The Wiliams peer sight holes are 1.100 center to center.

Or am I doing something wrong?

Perhaps an adjustable peep that will mount on the rear sight base?

Opinions or suggestions are appreciated.