Does what it was designed to do - Hi-Lux Optics Dovetail Block

Block fits a 1/2" rear dovetail on the barrel of my elderly rifle.
I changed the slotted head screws for allen head screws to allow windage adjustment without raising the scope out of its slots. (shortened an allen key to permit access too.)
Mounted the Malcolm scope without drilling & tapping for ordinary mounts. Important in keeping original
firearms original.