Your Chrony is not exactly reknown for giving accurate results. I'd say thats the majority of your problem. In all honesty the Shooting Chronies are all a bit rubbish.
I dont even REALLY trust the results from my Oehler.
Shoot it at long range and let the actual results speak for themselves. If youre getting vertical stringing then maybe the results are correct, if not, throw that Chrony in the bin.
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