I had an opportunity to try my 20ga tracker II at longer range this weekend. I figured that the max I would shoot it at was in the 150yd range and I wanted to see what it actually did.
The last group I fired at 100yds was 3".
I was shooting at a 6"bull and the scope on the gun is a fixed 2.5 compact.
With a zero of slightly under 100yds, the first shot was 6" low but centered. Adding 1.25" to my elevation placed the shot 3" low at 150 and centered.
I was using the Winchester platinum tip.
I would have shot more but I think that the results were adequate.
Whoever wrote that you have to clean the rifle and those slugs don't like their own fouling was right. As long as I have been keeping the groups small and the barrel clean, the first few shots go exactly where they are supposed to.
Good hunting
Tom