I'm not sure what you mean. We can use up to #4 buckshot for deer. Most people I know shoot 00 or #1. I like copper coated #1 in a 12 gauge 3 1/2 inch. I believe there is something like 24 pellets in that shell and copper coated seem to group much better for me at 40-50 yds(that is about my max range withmy shotgun). I have been very impressed with the stopping power of this set-up.