We do the same, and quit calibrating the targets due to the constant changing of POI/POA on the screen.
With that said, shooters should be skeptical of using an E-target to establish a hard zero, unless it's their own target with confirmed calibration.
Yeah, if you had said in the first post that E-targets were being used, a few of us would have asked "did you calibrate the targets?"
ShotMarker and Silver Mountain have to be calibrated, because the electronics will say "center" where it "thinks" is center. You would check your electronic...
Yeah, we have the Queen Mary as a museum in Long Beach Ca, not that impressed and it's cost the city and states tons of cash for "upgrades" in the past despite being well kept.
So gotta say no....
Well, brand new brass SAAMI cartridge headspace spec is usually less than the chamber headspace spec, so something is amiss.
And yes, the die is squeezing the shoulder forward a few thou.