Designed for the discriminating BPCR shooter who demands the utmost in precision sight adjustment. And when installed on the "Wm. Malcolm" scope, the combination will blow all others away when it comes to precision adjustment, precision sighting and precision shooting. These superbly crafted mounts have been designed to reliably give the shooter 1/4 minute of angle windage and elevation adjustments when needed, while totally eliminating unwanted movement due to "slop" or "slap" from rifle recoil. Thansk to the solid "Unertl" type steel base blocks, these mounts allow the scope to be totally removed from the rifle then replaced without any changes to adjustment. These mounts can be easily insted on the Leatherwood Hi-Lux Optics "Wm. Malcolm" scope without any alteration.