Yup, flyers are the "fly in the ointment" that will drive you crazy. Just when you think you have a really accurate rifle and you've found just the ammo it likes, you throw a couple flyers and wonder what the heck you did wrong? Inconsistent ammo can be the bane of rimfire shooters and cause you to have less hair pretty quickly if you take it seriously... Since I'm too cheap to buy $18 a box Eley or Lapua ammo for my informal paper punching and squirrel hunting, I just live with it or blame it on some external causation-


Never underestimate your ability to overestimate your ability.