Another plug for Bassett? Interesting. Considering those have a single-point attachment compared to the two- and three-point mounts from other companies, is Bassett really all that and a bowl of chili?
True it is a single point, BUT it has hardened pins that fit into the groves on the receiver and it will NOT move.
A true example of the KISS principle.
On mine, detaching and re-attaching the POI will be within 1/2 inch.
And that's on two different rifles (Standard and Scout)
Do a search on Snipers hide, lots of info there.