Need some help before purchasing.

[deerbasshunter3]

I have a Remington 870 Express Super Mag with a 28" barrel and a Hevi Shot Choke .662.

I do not know much about shots so I am going to go with Long Beard XR in 3" shell and #5 shot. For a starter, does this sound like a good place to start?

[silvestris]

Yes, if it gives you a dense even pattern.

[Gobble!]

I would use #6s. You said you only plan on shooting 40 yards max so I would not consider anything larger than #6s.