I have had my FA 454 for about 5 years now. Mine is a 10" and I scoped mine first with a TSOB 4 ring mount and a Burris 1.5-4 x scope, thinking foolishly that I wanted a variable. Fifteen shots told me the Burris cannot take the punishment of 355 gr. bullets at 1700 fps. The scope literally disintigrated. I then went with a Leupold 2x and it has been there for many hundreds of rounds since. Even the powerful 454 is a 150 yard gun tops, and 2x is plenty of power. As power goes up, FOV goes down dramatically in handgun scopes. To get the long eye relief, you have to give up something so FOV is it. I had a 2.5-8x Leupold on a TC 45-70 for many years, and it was way too much scope and was never turned up past 2.5x except at the bench. After over a thousand rounds of 45-70 that scope was retired to a more suitable 309 JDJ and the 45-70 now wears a 2X Leupold also. Out to 200 yards, 2x has been plenty, and since I have yet to take an animal past 50 yards, and many at only 50 feet, the extra FOV of a 2x scope has proven to be a God-send more than once.