There are quite a few rimfires that CAN NOT HANDLE Stingers...as they are HYPER VELOCITY rounds...
It's like this...you wouldn't put .22LR High-Velo rounds in a Pre-WW2 .22LR rifle, would you??
Nope, you'd use STANDARD LR's...otherwise a KABOOM is likely...maybe not the first time, but brother, it's coming...you just never know when.
Same thing for modern .22lr's, they've not quite come up to the level needed for Stingers & other HYPER-velo rounds.
There really isn't a need to use Hyper-velo rounds in semi-auto's...none currently on the market can handle 'em. Maybe a few times...but sooner or later...they crack like a Remmy 597 with .17HMR...BOOM!!
They were meant for SPECIFIC Bolt-Action rifles...let's keep it safe until someone makes something tougher
Oh, and I feel that Mossberg was being mighty cheezy in ripping off the design for the Marlin 795 to use for the Plinkster. It's not as well made as the Marlin, much like their lever-action is a weaker sister to the Marlin 39A.
Brazil just can't quite cut the mustard when it comes to quality rifles.