Rifle Scopes Vintage Weaver T Scope questions

[LRRifleman]

Hello. I have a few questions about an older, steel tube "El Paso" Weaver T16 I picked up for the 308 bolt gun I am building for F class T/R Long Range matches. I understand in advance that in the opinion of others that there are better scopes out there, but this is what I want being on pension and disability and funding my one vice.

My questions:
a) were the older T scopes equipped with 1/4 or 1/8 MOA adjustments? Using brown box XM118LR, the adjustments seemed to work out to 1/6 MOA. This ammo didn't seem to group well out of a rifle with known sub-MOA capability.
b) if they are equipped with 1/8 MOA adjustments, can you lift the turret knob and remove a bearing to convert it to 1/4 MOA as you could with the Weaver KT15s?
c) can you safely remove the knob retention screw and "zero" the turret knob without messing up the adjustment mechanism?
d) concerning the adjustable objective. When I was at the range yesterday trying to get a solid 100 yard zero, I had to adjust the AO in order to bring the scope into focus. The AO setting was close to the 400 yd mark, but it brought not just the 100 yard target into focus, but also the number boards on the ajacent thousand yard range which were about 500-600 yards away. The question: does the AO on a Weaver T scope deal solely with focusing or does it also have an effect on parallax?

Thanks, Ed

 

[Frank]

pretty sure they are 1/4 moa. At least my T10 is 1/4. Serial # is 3 digits, one of the very early ones.
Never head of any bearing that can be removed.
Yes just loosen the knods set screws and reposition as needed.
The adjustable objective is for parallax. If it's like mine it does not have yardages marked. Mine is more like a caliper. Go to the range and set it up, adjust for zero parallax. Take a reading and write it down. Go to the next yardline and adjust for zero parallax take reading write down and repeat for any yardline you may shoot at. Crosshair focus is the read eyepiece.

 

[LRRifleman]

Thanks. I need to locate the s/n on this scope. VWHugger sent me a copy of the owner's manual, and I discovered I had a misconception about the AO markings. I was of the mistaken impression that the tube engraving represented hundreds of yards and the AO dial engraving were tens of yards, and that the parallax adjustments were preestablished.

Where on the scope would I find the serial number?

Ed