I can sympathize with that. I'm nearsighted, with mild (and uncorrected) astigmatism, and up until the last year or so I've been fine with contacts or glasses. I gave up the contacts about 5 years ago, after getting some abrasions, and figured the glasses would be fine now that "I'm old"
(contacts make me look nicer, but they've led to a couple issues of sore eyes. Back in the day I used to wear 'extended' lenses, which they told us would be fine for up to 2 wks at a time. Sure you could wear them that long, just like you could wear underwear for 2 weeks without changing or washing them, but that was asking for trouble).
Anyway, my reading vision is finally going, so a pistol sight is in a funny place for me. I can see sharply without glasses up to about that distance, and require glasses at about the same and outwards. I guess I need a new pair, maybe bifocals.
But even with that, it seems like I've maintained the same accuracy with my other pistols.
This is a peculiar problem... I'm lefty, and when I'm missing, I go down and to the left.
View attachment 760201
Right about on the boundary of tightening fingers, and jerking or slapping trigger. With focus I go back to the center, it drifts out that way whenever I shoot a few fast.
But not the case with this Savage. And it's not limited to me, or just my son, as his friend (who shoots his Shield and 1911 fine) all have the same experience: first shot might miss 4 inches to the right, then 3 inches to the left, going up and down. Just random. I've never done this before, not nearly to that extent... and it's just this one pistol. Like I said, it was so bad I thought the crown was damaged.