I’ve never had this happen before, so I wanted to share it with my shooter buddies and see if anyone had any insight. Shooting my GP100 Match Champion, if I close one eye bullseye style and shoot with a hard front sight focus, the gun’s point of impact is ~4 inches to the right at 25 yards, with the front sight centered. No problem, I could just drift the front sight over. However, here’s the weird thing. If I open both eyes and don’t use as hard a front sight focus, but just kind of center the fiber in the rear notch, the point of impact shifts back to dead center, with about 0.50-1.00 inch increase in group size.
I’ve never had this happen before, and I’m kind of wondering what caused it. My current theory is that because I’m not as hard focused on the front sight, there’s a slight amount of blur on the fiber that’s “filling” in the gaps. So a centered green blob puts hits on paper but opens up my groups a bit.