I'm speaking about the smaller BFR in 475. Leupold 2X pistol scope didn't make it. Leupold 4X is still good on BFR 45-70. Notice I said, still. When elevation turrets are held in by 3 aluminum threads, they pull. It's nature. Newton's law. Shoot it a thousand times like I have and test the Nightforce scope. Put it through a real test like I did.