While I won't argue that some leupolds may work plenty good, and the general user will probably never notice any issues, I don't think use in PRS competition is a good indicator for durability. Meaning I don't think you can compare a 20 lb 6mm that is babied and zero checked before every competition, or even better carried around in a cart, to a 7lb high recoiling hunting rig that bounces around in an ATV. The other extremely popular scope in PRS is the vortex razors, think that is because they are so durable?