Hello, I have a FX Wild Cat MK3 bottle sniper. It happens to be very accurate, but when I take it hunting, it is very common for my point of impact to change, perhaps because the barrel does not have a barrel band and the barrel does not have much support. For a moment, I put a 1.5 washer between the space where the jacket ends and the change was spectacular. The groups changed at 30 meters from 1/2 inch to a single hole. Incredible how a simple washer gave tension to the barrel, transforming it into a laser. Now I want to try with a barrel band. Does anyone use a barrel band on a Wild Cat MK3? How does it work? That's my question. Regards.