What make and model .22 rifle?
Since you ask about the .22lr tools, if you intend to 'work' after the WORL arrives, a sound suppressor would be a good thing to plan for. Threading a barrel is not really that difficult with tap and die, and there are adapters available to attach an oil filter yet get good visual using an optic on top of the housing. Get the adapters now, while still available. You don't need to do anything with them until the collapse arrives. After it arrives, you will not be able to acquire them.
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#1 best overall choice: Ruger 10/22, Bought mine in 1967, and, thousands of rounds later, head shot kills on squirrels -- in t-a-l-l trees -- are almost guaranteed.
And there are more aftermarket accessories/mods for the 10/22 than for 'most any other rifle.
or
Yep, those are all the same .22 rifle!
Heritage