I've been down this road. Bought a Millett scope for a .308 AR-10. Worked well enough. Fast forward two years. Life got busy so rifle and scope have been in the safe all this time. Got some time off two weeks ago and take this rig to the range. Figured out after about three rounds that the elevation no longer works. Bottomed it out and it was shoot over the target at 100. I just replaced it with a NF SHV 5 x 20. There really is no comparison. You can't go wrong with quality glass. I spent $300 on the millett because that's what I could afford. The kids are know out of school and mostly self sufficient so I dropped $1275 for this Nightforce.