Waste of a video.
Contact Ruger Customer Service, explain issues. They will make it right.
Flattened primers is not an indication of pressure other than .327 is a high pressure cartridge. This is various boxes of factory ammunition. It’s not the ammo and what it’s shot in doesn’t change the pressure unless the bullet is touching the forcing cone or more.
Difficult extraction might be overpressure. It might be chambers out of spec too large, too small, chambers rough, or bad brass.
Shooting low...file some metal off the front sight, slow and careful... Or send it to Ruger!
Send it.