The Barrel...

Cleaning my luger, with the toggle closed, I was polishing the barrel when I noticed there was play left to right. The movement was about 1/16th of and inch total. Is this normal?

My gun is sighted in for 20 yards and with a steady hand my grouping still rivals any target pistol. Any observations? And please no bad Aimco/Stoeger jokes.....just kidding!!