I have a Daystate Airwolf that has been giving issues with loosing zero. Today I worked out that the barrel is moving in the action. I shot 3 shots first was an inch low I then give the barrel a push up it then shot to the point of aim. I then give it a push down next shot went an almost 2 inch low. A quick google brings up posts online about a barrel band brought out to stop zero shift but I can’t find any listed for the Airwolf