10/22 Locktite use points
I have seen many references to using the blue locktite when mounting scope bases to the aluminum receiver. The fine threads in that thin topped receiver should not be torqued too hard. After the rings are mounted, it can be hard to reach some of the 3 or 4 mounting points to retorque.
One should always check the length of these mounting screws to see that they don't protrude much into the receiver, or they could interfere with the top of the bolt. If you do use locktite here, carefully wipe away any that might get to the inside of the receiver.
Red is considered a very tight "locktite" for parts that shouldn't be expected to disassembled often or ever. Blue locktite is said to be removable with "common hand tools", but a little heat from a hair dryer or carefully applied soldering iron can help with either type.