3 gun is alot of fun. I have not done much of it but the little I did was very exciting. There where guys there with very nice set ups. Many people spent more on there shot gun than I spent on my entire setup.
Shot placement is everything! I would rather take a round of 50BMG to the foot than a 22short to the base of the skull.
all 26 of my guns are 45/70 govt, 357 mag, 22 or 12 ga... I believe in keeping it simple. Wish my wife did as well...