I had to laugh, I haven't fired an air rifle in 25 years or more and when I did my zeroing I was shocked at the lack of ... Well anything really, ok it's silenced, but blimey it's bloody gutless, good enough for close range rats, but I wouldn't shoot anything else with it beyond 25 yds.
I'm minded to to make a custom ratter during lockdown. I have an old HW80 ( used to be sold under the Beeman brand in the US I believe), break barrel Springer I've had for donkeys years, it's was given to me broken by an old friend.
They have the tuning potential to top 24 foot pound energy, now add a .25 barrel and it will be a halfway capable back yard vermin basher....
I just need an extra slot on my FAC to do it,that might be a problem at the moment.....