6moa covers about 3 inches at 50 yards...at 25 yards it will be about 1.5 inches. 8moa will cover about 4 at 50 yards. Some guys like that for ranging purposes on a turkeys head. I have the 8 on my Burris and would prefer a smaller dot because I don't want to obscure my target at any range I may shoot a turkey at. For turkey and predator, which is what I use my gun for as well, the 8 is fine especially at the typical range turkeys and predators are shot. I just would prefer to use a smaller dot and would think 6 is a good compromise.