Roger that. Hopefully this Sunday I'll have time.
Sunday?
Heck, I lay a shop towel over the sand in my horseshoe pit and shoot .22 into it all the time from a distance of 2" to check function.
Especially with subsonic .22....I can clap louder.
You mentioned the clean bore which infers a reasonably clean chamber.
If the mainspring holding the bolt to the fore is intact I cannot imagine any unsafe condition in a .22lr.
The gun has a lot of metal surrounding a pittance of nitrocellulose!
Let us know.