Hi TexasLonghorns welcome to the forum
now I got 2 of them guns and never tried shorts in them.
no ya ain't going to hurt yer gun less you force moving parts.
What will happen if ya (single shot stile) is the gun will not eject the case
Just hand cycle it and do it again... Now ya might put one in the chamber if it ejects put
another round in the tube. most likely it will jam on ya. but someone had done it here trust me