Jerry, those 10s are loaded for MAXIMUM effect. In addition to the thunderous boom of 4 (sometimes 4 1/2) drams with 1 1/2 oz of #9s are nearly 1000 pellets. These puppies don't just break clays, they make them disappear mid-flight. That's what people tell me, there's simply too much smoke for me to watch.
I do warn the staff at the skeet range before so they aren't thinking a gun blew up.

Joe