Prolly a dumb question but.....I have had the scope since January 2016 and it has been on my accurate ordnance 6.5 since new. I have only put around 600 rounds threw it so the scope has not been used much and most of its use has been in the past few months. I noticed around the parallax knob some white looking grease is coming out around the bottom of it, is this a normal thing? Their is not a lot of it but enough that its made a small ring under the knob and that's how I noticed It. Thanks