I hunt with my dad here in kentucky and that is all we ever use. Every year in the fall we take a trip to Wisconson just to hunt grouse and we never have a problem with the shells. Grouse hunting is a great sport and very challanging at that. The problem you face is hitting the bird. They are a very easy bird to kill sometimes with only a few pellots. The challanging part is hitting the bird. I know because I've hunted them enough. they get up and out of sight in no time. you must have a very quick shot for where I hunt.