Effective suppressed 22lr sniper distance?

Pondering what is the greatest distance that say a mini mag could make a one shot effective sniper shot from a bolt rifle with a good scope.
40 grains is not a lot, but the right placed shot could stop a biped.

Yes better bullets out there, but thinking post shtf quiet perimeter protection.

Welcome your feedback.

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Effective suppressed 22lr sniper distance?