Well, obviously I am new to the site but I am also new to shooting at any distances over about 60 yards. Go ahead and laugh. I grew up shooting .22LR's and still love it to this day but am wanting to start hunting and put some food on the table. I recently picked up a little Ruger American in .308 with a Redfield 3-9x40 figuring it would be a good introduction. So far I love it! I stumbled on this site after looking into improving accuracy and sighting in scopes. This is a little string I shot today at just over 100 yards. Odd thing is that I fired 3 rounds and only had the bottom left hole on the 2'x2' target. Weird. I loaded up some 168 grain Federals from a different box and fired the three remaining holes. Anyone have something like this happen to them? Did I just miss a 2' square target twice and then get lined back up?