I hunt in VA and most people use 3" 00. I also like #1 buckshot and have used #4 as well. If my stand is in a thick place where I can only get close shots, I will use the #1 or #4. A more open stand and I use the 00. I had a Benelli SBEII with a buck kicker choke and it actually shot too tight for my liking. It shot a pattern about the size of a pie plate at 50 yards which made it tough to hit deer that were really moving up close. Each gun is a little different so you will need to experiment with different chokes and buckshot to find what you like. I prefer a good even pattern about the size of a large pizza box at 40 yards.
