I've gone out many times and picked up unbroken targets at several ranges. I've found a number of targets with 5 holes in them and still landed, intact.
Heper or Eagle???71/2 or 8's ?
Those are the birds I shot!!!
I believe that Neil Winston debunked the presumed sanding/spin correlation quite some time ago."The better clubs will rub the arm with 80 grit sandpaper. That gives the target some traction so it can spin and not slid on the arm."
Iam not sure your 2”x5” wire figure placed on and around a static pattern is a true indicator of patterns potential since a size 7.5 started at 1200fps should still be traveling around or slightly over 500mph at 35yds while a claytarget started at 41mph will only be traveling at approximately 30mph at 35yds.If you want to prove to yourself that one pellet can break a target, it's easy. Shoot a couple of paper patterns, choke of your choice, at 35 yards and 40 yards. Take a wire coat hanger and bend a piece into a rectangle 2"x5". This is about the size that a moving target will present as a pattern passes through it. Slide it around on the 35 yard pattern. You will note that even in the 24" center that there are areas where only one or two pellets will be in the rectangle. Slide it around the 24"-30" area and you will really see some places where no pellets are in the rectangle. Now do the 40 yard pattern and you will understand why the very best shooters who can break 100 7 out of 10 times at 16 yards can only break 100 from the 27 1 out of every 100 times.