I bought the same scope a few weeks back. After a couple of range trips with the Sight Mark 4-16x44 mounted on my Tikka T3 Varmint I find the scope to track well, return to zero & the glass is clear & bright. My intint was to put it on my new Savage MKII TRR when it arrives, but that won't be untill Tuesday. I will buy another Sight Mark scope.
If you're riding' ahead of the herd, take a look back every now and then to make sure it's still there.