Got a chance to shoot the Sport last weekend. Target is 12" diameter and distance is approx 120 yds (rangefinder est). Shooting PMC Bronze 55 gr with Vortex Strikefire. Don't know if my grouping is good, bad, or mediocre but I'm happy with it.
Often a large dot makes it easier to shoot small groups, like the bullseye in the center of the aperture front sight on a target rifle. You just have to get the donut even all the way around the dot for each shot.