Search:

If this is a target you have shot multiple times with no issues, your chrony has proven to be reliable in the past, and on the same day you shot another rifle that performed as expected (so no funny...

I thought this too, just forgot to added it to my post...
That would also show up by validating at more distances.

Hornady list the BC for the bullet in velocity bands, if you have a multi BC...

I'd be inclinded to try truing it at a few different ranges, say 350y and 500y.
That will tell you if your velcoity is right or not.

Unless the atmposherics are messed up in your ballistic...