I DONT HAVE ENOUGH ADJ TO ZERO IT IN NC SCOPE MODEL SEFR104050G

There our manuals all over the place. Have you check your Library, and have you check the internet . I have seen several places that have that book , check E-Bay also they offer some good scoop books. Your going to have to dig a little for it . If I can remember the places that carry them I will send you a message.

I'd call the company. We have no way to find out the size from just the serial number.

Sight in your scope, Loosen the set screws and zero the dials the re-set the set screws. This will make it easy for you to adjust for distance and wind from the zero setting when in the field shooting. Then you can go back to your zero.

Here is the Tasco support site for their manuals.

Most of the time a scope that creeps off its zero, has a loose mount screw and or loose mounting ring. Check the mounts all screws. Some times the opposite is true. The mounts are to tight and in a bind. Then during firing the receiver heats up an tweaks the scope enough to cause creep. If the scope is always on zero when cold and creeps off after a few shots, she is in a bind. Make all adjustments to the scope base and rings with a cold gun. Loosen the front ring screws first then re-tighten then loosen the rear doing the same. Then try and re-zero the gun. If the gun never comes back to zero, you end one day shooting hi to the right and try again the next day shooting in the same spot try to re-tighten all screws. Screws from mount to gun then scope rings to scope body.

if the dot is fixed in scope the scope is ok,,,so its down to you to look through the scope the same way every time,,,what your doing is looking through the scope from a different point every time this will cause the point of aim to wonder,,,keep your cheek on the same spot on the stock each shot

Instruction sheet
Sales sheet

Deihl spa-and-pool timer shows a 15A DPST NC NO timer in sales sheet
Wiring diagrams show DPST.
However most 880's sold are 125V SPST.
Deihl makes 125 V, 24V and 240V models ... but I don't have product sheet that shows all models

I don't see any NO NC wall-timers while looking at: Woods, GE, Intermatic, Aube, Hagar, Leviton, Lutron, Paragon, Pass and Seymour, Swilight, Sylvania, Timex, Tork, UPM, Utilitec

Box timers by Intermatic offer NO NC:
T1900 series
T171

Ordinary 3-way switch is NC NO
Ordinary 4-way switch is NC NO can be wired to control 2 independent circuits

There are heavy load NO NC contactors (relays)
Item 2cg37
You can wire ordinary wall timer to control the contactor

inside the scope are runner rings to keep out dust and water the this ring need changing or lubing,,,have the scope serviced dont try to fix it yourself you wll only bust your scope

i dont realy understand what you mean by "the cross hairs wont adjust" is it you have ran out of adjustment on the turrets? if so try packing the scope out with 35mm film under the body of the scope and reclamping it,,,or do you mean it just wont adjust?
the tesco rifle scope is a realy cheep scope its a throw away kind of thing if it brakes,,,,there only £50 or so,,,,if it was a £1500 scope its worth fixing

just take your scope to a gun shop that caries bushnel and they will be able to tell you the model and order in a new dial for it.if they dont have one in stock and fit it for you.