SHV and NXS seem to be pretty bland names for those who hate marketing. I have a bunch of 1 inch scopes, all have been back to the factory including a Zeiss Victory HT 1.5-6 x 43, QD swivel popped out (my fault) and it hit the tree stand. I am no fan of vortex or sig scopes, the swfa 1-4's now made in the Philippines are questionable in my mind, after the tract drop tests I am not convinced regards their durability, so your kind of in a jam unless you want to try a fixed 6x or 4x. I have heard the SB scopes hold zero well but are not great for dialing, but I have never owned one. I just got a trijicon 1-8 x 28 a 34 mm tube that is amazing, I ran the turrets just up and down a few times and fired and there it was right where it was supposed to be. Good luck.
