I picked up a couple boxes and it seems to work well with pretty explosive results in the coon and cats i tired them on. I shot it through my marlin 982vs and it yielded pretty good groups. Didnt have a caliper to measure but would say real close to an inch or less. Also fed a few through my heritage 22 mag revolver and they also shot well. Im not sure if it comes differently but mine are a 30gr v max.