Will a 5.56 in a bolt action .223 ruger American cause damage to me or my gun in the long run?

I have shot maybe 300 rounds of 5.56 through my ruger all American preditor .223 and it’s been great, no problems. But it dawned on me That I was running technically the wrong ammo through it. Will this result in long term damage to my gun, or could I have a tragic mishap while shooting 5.56 out of a modern .223... show more I have shot maybe 300 rounds of 5.56 through my ruger all American preditor .223 and it’s been great, no problems. But it dawned on me
That I was running technically the wrong ammo through it. Will this result in long term damage to my gun, or could I have a tragic mishap while shooting 5.56 out of a modern .223 blot action?
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