Found this .303 today - unusual in some ways.

[Treeman]

I found this .303 which has only 4 markings on it. Caliber - serial number - BSA and Musgrave. If you look in the photo's you will see no stamps nothing.
Who know what about this weapon.
20221008_075203 by David Frank Allen, on Flickr
20221008_075159 by David Frank Allen, on Flickr
20221008_075144 by David Frank Allen, on Flickr

What can you tell me about this rifle.