Having worked in a few gun shops I've played with a few different drivers and bits.
Most scope rings under $150 including those that come in packages on air rifles .22s and budget centrefire rifles are a little soft. The best method I've found for tightening these is to use the driver that usually comes with them, put some locktite on the screw and then carefully do it up until it feels tight. Decent driver bits tend to cut the heads in these screws, I think because they aren't quite proper size.
Once you get into decent screws the proper driver bits work well, the likes of Bacho, Kingchrome,etc are better than the wheeler ones I've found. Never had trouble with the Wheeler fat wrench torque wrench though.
Older guns with slotted and to a lesser extent Phillips screws are definitely harder, with slotted heads grinding something to fit is a good idea. I've always found Stanley screwdrivers (only used at home) best for Phillips however I've gotten away with just using cheap mixed bit driver sets at work.
To end my rather lengthy post (sorry) I'll say any screwdriver is improved with a healthy dose of penetrating oil to the screw and some patience for the operator.
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