Help with scoping a No1 MkIII

[Peter Laidler]

You have to totally strip the telescopic sight, insert the tube, partially reassemble it to make sure that the graticle post is exactly upright. Then you lock the clamp rings. Remove the tele and rings, ACCURATELY mark the telescope where the rings fit. Remove rings, tin and solder both, sweat together and clamp-up. And if you haven't machined the surfaces or alignment for the base parts of the mounts, take apart and start again because it will place an unacceptable strain on the tube - doing it properly this time*! When correct, re-blue or black and finally reassemble telescope

Yep, corrected a total bodge-up a month ago! Some enthusiastic amateurs simply have no idea or concept of mechanical and optical axis and the importance of collimation. Aren't you glad they simplified the No4?

But Tsquared ain't mounting those mount bases on an SMLE!
* If anyone is really interested, ask