That case is FULLY chambered.
An out-of-battery is when part of the case is NOT chambered and the case yields forward of the strong part of the case.
Rimfire's generally don't have a "strong" part though so there is ALWAYS some unsupported case which is traditionally surrounded by the bolt/slide when the case is seated in the chamber all the way to the rim.
From the picture above, I see an ammo failure unless the Kaboom was caused by a bore obstruction that we don't know about.
An out-of-battery is when part of the case is NOT chambered and the case yields forward of the strong part of the case.
Rimfire's generally don't have a "strong" part though so there is ALWAYS some unsupported case which is traditionally surrounded by the bolt/slide when the case is seated in the chamber all the way to the rim.
From the picture above, I see an ammo failure unless the Kaboom was caused by a bore obstruction that we don't know about.




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