I used to shoot a lot of shorts as a low noise option,
I mainly used a single shot because nothing I had would cycle them very good.
Until I found out about CCI quiet .22 they are great! They are Long rifle size so they feed in anything, except they don’t have the snap to run a semi, and I found to be accurate enough at 20-25 yards kinda thing to suit my needs. Much better accuracy than CCI CB longs, I believe the velocity is the same as most shorts
Try these and you might rethink using shorts