No32 MkII scope help - 10 clicks before elevation reticle moves upor down

[Peter Laidler]

What you describe is a trait of dirty Mk3 and L1A1 telescopes and not Mk1's and 2's. In the meantime, here's a little test. Go up to 10 (or down 0) and slowly rotate the drum upwards or downwards but look at the inner/central brass part of the drum. This reverse slot spindle is the lead screw. It should turn at the same rate as the main outer thumbscrew.

What you are indicating to me is that as you turn the outer thumbscrew, the inner leadscrew is not turning at the same time/rate. This leadscrew is/should be locked to the outer drum via the lead screw lock nut and in turn, is threaded into the diaphragm nut. Lead screw moves, then so does the diaphragm and grat.

Do that test first

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