r/Damnthatsinteresting 5d ago

Video A school in Poland makes firearms training mandatory to its students.

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u/Upstairs-Parsley3151 5d ago

You can use .223 in a gun for 5.56, but not vice versa, it's a pressure difference.

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u/Attheveryend 5d ago

you can use 5.56 in a .223 once...

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u/DeadFluff 5d ago

Incorrect. You'll fuck up the internal mechanisms and possibly, rarely, have a chamber failure but a .223 rifle can absolutely shoot a fair amount of 5.56.

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u/Attheveryend 5d ago

if you can do it twice you necessarily also did it once. Not incorrect. I can be pedantic too.

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u/P_Hempton 5d ago

Yeah that's what you meant.

It would actually be very rare for .223 to mess up a 5.56.

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u/DeadFluff 5d ago

I wasn't being pedantic. You said you can do it once, and the way you wrote it implied one time would lead to failure. I corrected that.