Really frustrated with my Leupold glass!! Got my custom 300RUM delivered this summer. I had a Leupold 4-24x52 VX6HD with the TMOA reticle waiting for it. Broke the barrel in and developed a great 0.5" MOA load for it. Early on I performed a vertical target test at 100 yards shooting 0, dialed 15MOA, and dialed 30MOA to verify vertical tracking in the reticle was in fact vertical and to measure the distance of turret clicks which came right out at 0.253MOA/click which was spot on. I inputted all the data into Strelok and had my DOPE for longer range. I shot a target drop test out to 700 yards and verified all the drops at 300, 400, 500, 600, and 700. Strelok's come ups were spot on as I verified each of them by dialing down to my groups (all sub-MOA) on the target. Perfect, I thought to myself, I'm good to go to start dialing my all come ups with all my DOPE.
I started shooting 500 to 1000 yards dialing and this is where my issues started. I started having low hits. I would start at a distance and my first and second shots would hit low (multiple inches low depending on distance), I would then correct by how low they hit and dial up accordingly and they would hit spot on. Then I would go back the next day with my new numbers and again I would hit low and have to do it over again. This went on for the last week and a half and is driving me nuts! I triple checked all my rounds for charge weight, neck tension, seating depth, fps, etc. and everything was spot on. I am anal about the ring and action screws on the rifle and they are tight. I'm far from a pro, but my form is solid and I'm shooting very nice sub-MOA groups. I never touched the horizontal turret and only adjusted the vertical. Horizontally, I'm spot on. My vertical hits are off and not making any sense to me. They keep dropping lower.
Every day I went to the range, my come ups increased about 0.75 to 2MOA from 500 to 800 yards. I went again yesterday and it happened again. I know the MOA/click is on because after I measure my drop and correct, I'm dead on. The problem is my MOA from one day to the next is off considerably. It took me a bit in my thick head but I ruled out the rifle, the ammo, and my form. It has to be the scope. I haven't shot it under 500 yards in weeks after I zeroed it at 200. This morning I shot 2 rounds that almost had touching holes at 200 yards that were 2.1MOA (or 4.5 inches low). About 80 rounds ago I had a perfect 200 yard zero. SO FRUSTRATED!!!!
I know there have been some tracking issues on Leupolds. I'm not sure if this is a tracking issue or just an issue where it can't hold zero. Like I said, when I dial a known observed come up, it's spot on so I know it tracks well in that circumstance. But it either has lost its zero somehow or has tracking issues when I dial and then return it back to zero and dial again. I'm not sure which it is, but neither are good. Now I don't have any confidence with this scope. For $1800 this shouldn't happen!!! Not at all happy, and really frustrated with this scope. Another thought I had was the recoil from a 300RUM too much for this scope? I have a very long awaited for elk hunt next week and just sick about this. Not sure what to do.
Has anybody else had any similar issues with VX6HD's? Is there any way I can tell if it's not holding zero or just not tracking correctly? Or both? Any other thoughts?