I just got the 12 gauge USH with a Nikon slughunter scope. I shoot the gun and discovered that my gun's patterns are really good under 100 yards. At 25 yards, 50 yards, and 100 yards my patterns were under an 1.50 inch. Then I shot at 150 yards, knowing my gun can shoot that far accurately.
distance - 150 yards
ammo - Horned sst's
temperature - 75 degrees, sunny
windage - 10 to 15 mph winds
date - 8/15/08
Then at 150 yards, I shot four shots, it was shooting 12 inch patterns. What caused this erotic pattern, could it be that it was 10 to 15 mph winds. Also I had shot 20 rounds through the gun, could it be because of how dirty the gun was, should I clean it every 10 shots to keep the accuracy. Should I try different ammo, know keep in mind that I used the same ammo the hole time, and that others have had great patterns with the hornady sst's.