What kind of pattern can I expect

[MD]

I just got a spare barrel for my Remington 870 Express to cut down for a hiking gun.

What kind of pattern can I expect with buckshot out of a 19-inch barrel with no choke?

With #4 or #5 lead shot? I might see a snowshoe hare while hiking in august and hares open here August 1.

 

[manbearpig]

it depends on too many factors to be able to just guess.
get some butcher paper, or some large pieces of cardboard, or some big sheets of bristol board at dollarama and go pattern it.