Looking for info on the L42 L1A1 scope turrets

[Warren]

IIRC Warren, PL told me that some of the last replacement drums were not fitted with the tiny locking screw. When I fit replacements I do not fit the screw either, & they work fine. There seems to be enough 'friction' between the two parts for them not to slip.

That is just slipshod, poor workmanship and cutting corners on the part of the military rebuild program.
Some are tight and others are quite loose. There are not many I have to use the wrench on to get the range drum off. The odd one you have to drill out the BA10 screw but not many.
I am not criticizing your work Roger, as you are one of the grandfathers of the 32 scope refurbish program, but why use 4 or 5 wheel nuts on a car rim when one will do. If it is there originally why not put it back. I for one sure would not want to be in the field and have the turret unscrew on me.
It just irks me when the people who designed the thing are not adhered to.
Sort of like the better mouse trap.
Hope I do not or have not insulted anyone but just my 2 cents on the issue.
I am finding the majority of the L1A1 scopes to be in only fair to mediocre condition mechanically, with lots of galled and worn parts. This opinion based is of the ones I have seen and even my own L1A1 scope.
Like the astronauts thoughts when going up: " everything here is by the lowest bidder!!!"