I run a couple Zeiss's, a 3-9x40 and a 3.5-10x44 and I also have a 2.5-16x40 mildot Bushy 6500. The 6500 is a very nice scope with a fantastic zoom range for my 243 WSSM AR. However, the Zeiss's are quite a bit clearer, to my eyes. I'm actually kicking around selling the 6500 to purchase a new Zeiss HD 3-15x50.