Looking for info on the L42 L1A1 scope turrets

Could I bother anyone here who has an L42 with an L1A1 scope for a picture of the JUST the top of the range drum. Nothing else is required.
I have had several L1A1 scopes in for repairs over the last year and the tops of the range drums have holes drilled all over the place for aligning the drum to the inter gear wheel stud or bushing.
Several looked like a drunken woodpecker had been at them.
Many are in gawd awful condition and I am wondering if Donnington shipped out a pile of crap when they surplussed out the L42's, or just what is the story.
Just PM me and I will give you my email address to send the picture to.
I really appreciate any help I can get on this, as it purely personal, academic and I will share the results here if I get enough responses to make it meaningful.

Attachment 123464

Hi Warren,

Photo of the top of my L1A1 Scope should be attached, I don't see any of the multiple drill holes you mention. If you want any more detailed photos just let me know and would be happy to help.

Thanks for the photo
I cannot expand the photo very much but it does look like an extra hole at 4 o'clock
I will try and find the photo of one that had 3 or 4 extra holes and post it
cheers,
Warren

Closer photo attached

Attachment 123469

Attachment 123470

This one is not bad compared to a couple that I have in for repairs.
I would love to see the original spec's on the upgrade from Mk.3 to L1A1

https://www.milsurps.com/attachment....71&cid=1&stc=1

My two dont show any thing like yours Warren. Though one windage drum has been re drilled but not the centre post. Looks to me done to a line the marks.

Greetings Warren

Here are my L1A1's, if it helps rifle conversion dates: 70, 71, 71, 74 All but the 70 have the correct "M" marking, so I do not know if the 70 still has its Mk 3 scale or if they did not mark the "M" until later??

Lance

Lance, a few of the metric scales were not marked with the 'M'......I've had a couple. If you compare how far the 1 to 10 range grads go round the circumference of the scale ring you'll be able to tell one way or the other.

Sorry I've not contributed Warren........but I simply do not own a single L1A1 scope anymore! I'm watching the thread with interest though.

Thanks, Roger! I just checked and the grad lines have the same spacing as the "M" scales and are way different from the No. 32. In all these years I have never looked. My tidbit of learning for the day!