By the time it takes for the second shot from the 500 I could have emptied the 22 magazine all into the target.
Yep try hiding that 500 on your body. I guarantee you will know you have that gun on you. So will your hand and arm when you shoot it.
Hickok45 who usually fires any gun a bunch of times in his show and tell videos only shot two rounds from the 500. That should tell how much of a hand cannon that 500 is.