I've got a just about washed out Sako HB. You can't seat a 55 in a case and hit rifling.
But it still shoots 5 50gr. Vmaxes under 3/4 an inch.

Remington brass in 222, and I've had lots, is garbage. Runout is horrible. I think their dies are shot.
Winchester is much better brass and I would maybe try that ammo instead.