Bore sighting in slug gun

[Grandviewer]

I need some help. What tool out there is a good one to use? I don't want to burn threw 10 boxes of ammo to sight in bushnell scope on my M2 Benelli slug gun.

[BOWHUNTERCOP]

shotgun bore sighter for the gauge you have, and once your on paper, sight-in to be 2.5" high at 50 yards

[Retaks]

I jsut set mine up and shoot 50 yards with it. I take regular pieces of computer paper and make a 5'X5' area around my target so i can see where i hit if i miss the target. Then i go from there.

[Retaks]

ONe other thing i only fire one shot then adjust untill im close(within 6"-8" of where i want to be)then i go to 3 shot groups.

[Grandviewer]

Thanks Retaks AND Bowhuntercop!