I'm not sure about this but it would seem that deer will need a tighter pattern than say a goose, probally really need more than one pellet in it. I would doubt that you'd want to shoot at a deer all that far with buckshot. I'd think a full choke. Probally a better idea is to go to slugs.I understand that they do well out to 100yds, give or take. Then it's simple, buy a slug gun!
The only experience I have had with buck shot would be using 2 3/4 9 pellet 00 buck shot while using my super full choke I use for turkey hunting. 50 yds was about the limit. My buddy was using same set up only using 000 buck shot and he got much better penetration at the same distance. Shoud be sufficient for your set up. Definitely get the tightest pattern you can.
Your going to have quite a spread at 50 yards with buckshot regardless of the barrel, but full choke will give you the tightest group. Burneke(if that's the proper spelling) rifled slugs would be my choice.
Have you thought about a trip out west for big game? Have you dreamed about what it might be like to ride horseback through the beautiful Rocky Mountains, while looking for deer or elk? Have you dreamed maybe of traveling to Canada for a moose, elk, bear or deer hunt? Have you wondered what it might be like to see the wild Alaskan bush?
Well, I have a little advice for those who have wondered those, or similar thoughts. JUST DO IT!! If you think you might enjoy it, my bet is that you...