Is a imp mod choke tube in 12 ga good for ducks?

Yes, an improved modified (IM) choke tube in a 12-gauge shotgun is generally good for duck hunting. It provides a balance between spread and pattern density, making it effective for medium to close-range shots. This choke allows for a tighter shot pattern than a modified choke, which can help with accuracy and hitting fast-moving ducks. However, the best choke can vary based on the specific hunting conditions and the distance of the shots.