Identify .22 center fire rounds

[REM3200]

Have a box of this and no idea what it is and Google isn’t helping.

Bottleneck center fire rounds I’m guessing .22 caliber.

Any help identifying appreciated.

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[tiriaq]

.297/.230 Morris Short.

 

[BlackPowderBurner]

.297/.230 Morris Short.

Bingo

 

[REM3200]

Thank You. Never heard of it or guns it was made for.

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[Heddok]

3 minutes....... 3 minutes is all it took. How do you guys know all this arcane stuff?