What is the 'redialing the knobs to re-dead zero a mounted scope. I have an older Weaver USA mfg. 1" tube 2X7 vari-power that is locked at about 7 sclicks low and 4 clicks rt. and there is no more adjustment left- I am used a Lazer colimnator-bore sighter. This is on my 1950M70 in .220 Swift cal. ammo for that rifle is scarce and pricey, so prefer to to the rough adjustments with a bore scope- final targeting will be a 200yds. on our range "on paper" later on. RWTF

"The field is the touchstone of the man"..