I bought a Shmidt and Bender PMII 3x12 with a 50mm objective lens that was assembled by Premier Reticles. On my scope the reticle jumps as I move throughout the magnification levels. Take a look at your own scopes to see if yours does the same thing.
While looking through your scope move through the magnifications levels, when you reach to the desired magnification level slowly back down and see if the reticle jumps. It is not uncommon for the reticle to jump when you back down from the highest magnification level. The Shcmidt and Bended representative stated this should not effect your group in any way but on my scope the reticle jumps at every magnification level and does effect my grouping. I called Shmidt and Bender and they are going to fix the problem free of charge.
While looking through your scope move through the magnifications levels, when you reach to the desired magnification level slowly back down and see if the reticle jumps. It is not uncommon for the reticle to jump when you back down from the highest magnification level. The Shcmidt and Bended representative stated this should not effect your group in any way but on my scope the reticle jumps at every magnification level and does effect my grouping. I called Shmidt and Bender and they are going to fix the problem free of charge.