None of my rifles change their poi from first to subsequent shots. In fact, when I go to a match, often the first shot on the trail is the tie breaker shot. It is normally at fairly close range, ie: 15 to 20 yards, and is almost always a dot about 5/8" diameter surrounded by scoring rings. In the matches in which I participate, if you don't punch out the centre dot, you will not win the day. And I shoot at mine with a clean bore knowing that where the sights lay there too will lay the ball. My BPCR's are a different animal.