Hard to say, Kirin isn't made from chakra but actual lightning that Sasuke controls with Chidori but it's a targeted Attack, it's destructive power is aimed at the target as shown when Sasuke summed it at Itachi and Sasuke wasn't killed in that blast even though he was a couple feets away. The force brought down the Uchiha hideout because it's hallow out and the force of Kirin broke its structure. If the full force was anywhere but aimed at Itachi then Sasuke would be dead.
Base Naruto who used FRS the first time was when it was at about 50% completed and look at the size of its crater
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and
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. Kurama powered FRS was even larger
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.