Optical zero?

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    So I've been aware for a while of the technique of tin foil over scope lens with a small hole, set zoom lowest,ao lowest,get target as close as possible within foucus and fire a shot then measure from bulls to shot for scope height.
 Supposed to give more accurate measurements in chair gun.
 So  finally going to try it.
 The one thing i cant find on any video is wether I need to be set to optical zero, or if i can do it sighted in.
 Can anyone help me on this please.
 Cheers

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kruzaroad Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 03 Jul 2022 Location: Hastings 4 now Status: Offline Posts: 2524	Post Options Post Reply Quote kruzaroad Report Post Thanks(0) Quote Reply Topic: Optical zero? Posted: 6 hours 35 minutes ago at 12:25pm
	So I've been aware for a while of the technique of tin foil over scope lens with a small hole, set zoom lowest,ao lowest,get target as close as possible within foucus and fire a shot then measure from bulls to shot for scope height. Supposed to give more accurate measurements in chair gun. So finally going to try it. The one thing i cant find on any video is wether I need to be set to optical zero, or if i can do it sighted in. Can anyone help me on this please. Cheers

RangerPete Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 19 Apr 2023 Location: Cambridge. Status: Offline Posts: 1011	Post Options Post Reply Quote RangerPete Report Post Thanks(0) Quote Reply Posted: 3 hours 9 minutes ago at 3:51pm
	Hi Kruza, what is it that you are trying to work out, the scope height?
	Walk quietly, but carry a big stick.

kruzaroad Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 03 Jul 2022 Location: Hastings 4 now Status: Offline Posts: 2524	Post Options Post Reply Quote kruzaroad Report Post Thanks(0) Quote Reply Posted: 2 hours 45 minutes ago at 4:15pm
	Hi Pete. Yep but Im trying this way to see if it's more accurate than the half scope height and center of bore.