that spring to force erector tube again to stay in contact with turret "finger "
same as Burris posylock is a lock on erector tube but thrirs small can be found too as Tucker conversion on Leupold ( use mostly in BR shooting on 24 and 36 x )
this screw is set in factory and the over/cap is just comestic , no need to try to adjust or readjust to improve nothing , just use the
some other make use bigger main tube ( 35 , 40 mm ) to allow room enought to put the same spring
good shooting
DAN TEC
same as Burris posylock is a lock on erector tube but thrirs small can be found too as Tucker conversion on Leupold ( use mostly in BR shooting on 24 and 36 x )
this screw is set in factory and the over/cap is just comestic , no need to try to adjust or readjust to improve nothing , just use the
some other make use bigger main tube ( 35 , 40 mm ) to allow room enought to put the same spring
good shooting
DAN TEC