Good advice Jack. You need to use quality mounts for a springer. Or even a 1 piece mount. If its still moving then there is something not quite right somewhere. What mounts and scope are you using.? Neil.
The Pope HW97 V-Mach. Gary Cane Laminate stock. Leupold Competition 40 mag Mildot.
The Smiler. Walther LGU. WE Laminate stock. Leupold Competition.
The Dark Destroyer. TX200 MK3. Leupold Competition 40 mag.
Pro-Sport. Warren Edwards Blue Laminate stock. Bushy 8-32x40.