All things being equal, one rifle is off .5mil at 280 yards

[Sticks]

At first blush, it sounds like a tracking issue. If it continues to randomly happen, maybe dismount and re install the scope and mount? That’s weird, and especially frustrating considering the intermittent happenstance.

Really frustrating since the GF has shot at two SRM and did miserable. Might have been a scope issue all along since she is a consistent sub MOA shooter on paper and a fair portion of the steel is 1.7 MOA except for the 600+ ranges.

Inconsistent tracking on the Vortex?
Isn't that what the lifetime warranty is for?

They are getting a call tomorrow.

If it acts up again, shooting the same target with a reticle hold would enable you to isolate whether or not its the dialing.

I should have thought of that. Damnit.

Have you chronographed both rifles with the same exact load with 10rd samples per?

One might be shooting slower, especially if it has lower round count.

All the three ladies have shot is American Gunner. The last two crono checks for the dope put hers at 2476, and that day she was having issues, I strapped on the magnetospeed and 5 shots avg 2476 under 10 for the SD - nuts on.

All three have about 45 fps difference in FPS with American Gunner, so they have the same dope out to about 450.


We will see what Vortex has to say. I am concerned about the over travel on the return to zero.
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If it's not the optics, then I am not sure where to look on the rifle. I would think the crown would not allow a .591 group and still dive the bullet .5 mil low at 280.