I checked the BSA web site but they don't have manuals available to read on-line. I suggest you phone them.
Here is their contact info:
To send us comments or questions, please complete and submit the following form.
By Mail: BSA Optics, Inc.
3911 SW 47th Ave. Suite 914
Ft. Lauderdale, FL 33314
By Fax: 954-581-3165
By Phone: 954-581-2144 (Monday - Friday 8.30am - 5.30pm EST)
You shouldn't have to take any screws out. Every scope I've ever seen has a screw off cover over the adjustments. The whole turret cap just unscrews. Under that you'll find either a screw or a knob of some type to turn.
my elevation knob turret cap only has numbers, 100 yard, 125, ect. which are ranges to set the scope to AFTER it's sighted in.
No up or down marks to initially sight it in.
I called customer service and they said yes, remove these tiny 3 screws
to get to the adjustment underneath.
I did that. After buggering up the screw hole. They give no tool to
remove these screws.
After removing the turret cap all that is there is a large slotted screw, no indications of up or down.
She said she "thought", I turn this large slotted screw clockwise
to get the bullets to go up.
Then after it's sighted in for 100 yards replace the turret cap, and the 3 tiny screws, and put it on the 100 mark.
I can then turn the turret for different ranges, and the scope will adjust the Point of impact automatically.
Bottom line, I don't think even their customer service knows how to adjust this scope.
Trying to remove 3 ridiculously small screws just to set elevation is
I have never had a scope where I had to remove screws to adjust elevation, and also never had an elevation screw not marked in any way.
I really don't know which way I turn that large slotted screw to move point of impact up or down.
I had a BSA SW 17 and bore sighted it on a Marlin 917 and it was great. It's a cheap scope, but seems to do the job. The insructions are a Chinese translation. Didn't have to do what you are talking about to set it up. Sold the gun to a buddy and he is out to 125 yards with it banging Ground hogs with it.