How long can you keep a shadow 1000 .177 caliber pellet gun ****** and loaded ?

Answer 1

It's generally best just to load and shoot, but in a hunting situation that's not always practical.
Even then though, I try not to leave my springers c0cked for more than an hour at a time.

If you leave a springer c0cked for an extended period of time the mainspring can take a set
and you'll lose power. So, don't put one away without shooting it first.

Answer 2

When you read the manual that came with your air rifle what did it say?

Answer 3

12 minutes under pressure.