RE: My first range session with BH209 and Knight LRH
One suggestion for you on the LRH, buyan old style bore sighter. Not for sighting, but rather to check your crosshair zero after cleaning your gun.
If/when you take the barrel off, tightening the rearboltthru the trigger guard, bows the barrel and puts torque on the scope mount bases.
It can be off as much as a few inches.