As a point of reference, now that I have disclosed the fact that I have sold both NF and Leupold as well as owned them. I have only ever seen one NF retuned because a customer was not happy with it and two Leupolds that I can remember. And that is out of hundreds sold. That said most never use them to their full potential.
Funny Story: I had a friend that claimed a Mark 4 was failing to hold zero mounted on a 300 WM. Gun weighted about 7-8 lbs, kicked like a mule. We went to the range to test it. He and a couple others shot it while I observed. Sure enough, not a one of them could get the gun to hold a 6 inch group. One of the guys I had witnessed shoot before and knew he could shoot fairly well. I checked everything and settled in behind the gun. First shot center punched the center X. That thing slap me hard! It killed on both ends. Two more shots tore the first hole and fell low right. It was a legit 1/2 inch group. I had one of the others shoot the gun again but this time I loaded it one at a time. Two shot fired and two shots missed their mark. I feed an empty case in the third time and the guy nearly feel off the bench when he pull the trigger. We had to catch the gun before it hit the ground. Problem solve! It wasn't the scope!
A light weight magnum ain't no joke! I just sold my 460 and 375 because I have a detached retina that was repaired. It wasn't due to shooting but I wasn't going to be and didn't shoot them much anyway and didn't want to take the risk. The 375 was a great rifle and was completely manageable. The 460 was a McMillan custom from the mid to late 90s that dude would wake the dead. If a scope was going to fail to hold zero that was the test gun. It had a 1.5-5 VXIII classic Safari scope. It never failed.
Funny Story: I had a friend that claimed a Mark 4 was failing to hold zero mounted on a 300 WM. Gun weighted about 7-8 lbs, kicked like a mule. We went to the range to test it. He and a couple others shot it while I observed. Sure enough, not a one of them could get the gun to hold a 6 inch group. One of the guys I had witnessed shoot before and knew he could shoot fairly well. I checked everything and settled in behind the gun. First shot center punched the center X. That thing slap me hard! It killed on both ends. Two more shots tore the first hole and fell low right. It was a legit 1/2 inch group. I had one of the others shoot the gun again but this time I loaded it one at a time. Two shot fired and two shots missed their mark. I feed an empty case in the third time and the guy nearly feel off the bench when he pull the trigger. We had to catch the gun before it hit the ground. Problem solve! It wasn't the scope!
A light weight magnum ain't no joke! I just sold my 460 and 375 because I have a detached retina that was repaired. It wasn't due to shooting but I wasn't going to be and didn't shoot them much anyway and didn't want to take the risk. The 375 was a great rifle and was completely manageable. The 460 was a McMillan custom from the mid to late 90s that dude would wake the dead. If a scope was going to fail to hold zero that was the test gun. It had a 1.5-5 VXIII classic Safari scope. It never failed.