Problems with my scope....

These guys have a great range of torque screwdrivers.

https://nz.element14.com/w/search/prl/results?st=torque+screwdriver

I bought the Duratool with a 1-6 Nm range from them along with quite a bit of stuff over the last couple of years including airgun related items (torque screwdriver, duct seal and the latest, a dB meter).  Freight on orders over $100 is free but most comes out of Aus and takes about a week although the duct seal came from the UK and was only a few days.  Their range of products is huge and includes inexpensive through to top of the line brands. I particularly like their Extech products.

I set my ring screws to 2Nm in steps, finger tight with the appropriate tool a little at a time to hold the reticle level, then 1.5Nm and then 2Nm with the torque screwdriver (you will probably need to buy a set of small bits to suit).  I also apply low strength Loctite 222 to the threads and a small dab of E6000 glue to the dovetail at the clamp points (I was using Araldite but it's too hard to remove from the grooves) as the locking screws never line up the the barrel stop holes or they're too small.

If the rings have single sided tape I remove it.  In its place I use a 8-10mm strip of self-amalgamating tape laid at right angles to the scope top and bottom.  It's not the easiest to keep in place as it doesn't adhere to anything but itself and it will squeeze out the side of the rings at points, but being silicon I figure it's good for several reasons.  Firstly, it will take up any slight variance in the rings, second it provides a small amount of shock absorption, thirdly it grips the scope and ring surfaces better than the self adhesive tape, fourth it doesn't mark the scope and is easily removable (and reusable) and lastly it's cheap - on special for $5 at Supercheap.

https://www.supercheapauto.co.nz/p/calibre-calibre-tape-it-self-fusing-silicone-tape---black-3m-x-25mm/395855.html across