I've used Kahles 3-9x42mm, Leupold Vari X-III 3.5-10x40mm and 50mm, Nightforce NXS 2.5-10x32, and Bushnell LRHS 3-12x44mm on 7mm rifles. Currently I'm still on the LRHS. If I did another that were smaller and lighter I would go back to the NXS 2.5-10x32mm.