I have a Savage Varmint that was shooting good, then got a bit off, someback and forth.
At the range, ooops, time to make a dinner date, I will do the last 5 shot, get my target.
Dang I must be doing good, one holed.
Hmmm, get to target only one hole, I am not that good I didn't scrape the edges.
Ok, next time.
At 108 yds (just past the 100 yd line because) and on here, one 2.5 inches ways, next one right in the first one and around it goes.
My control rifle (not as good a stock or scope) shooting 5/8 or 3/4, same ammo, worked up before and COAL adjust to each gun.
My take is scope but could be the stock. Either way its not me. Will change out scope and see.