I have a Mossberg 535 with iron sights. I had to move the rear sight as far fight as it would go without falling off, and had to move the front sight to the left quite a bit to get it to shoot straight. Which gives a funny sight picture. I put a laser bore sight in it and the laser was dead on when the sights were perfectly centered but it shot 18 inches left. Now the laser is way right but the slug hits where the sights are at 50 yards. I tried 3 different slugs with different velocities.
Any Ideas why it would be so far off when even the laser was dead on? I know the laser is supposed to get you close but 18 in off at 50 yards is not close. Is it worth it to send it back to mossberg after deer season? I think I will have to put up with it this year.