Wadcutters tend to cut nice, clean holes in a paper target. A wadcutter is a bullet specially designed for shooting paper targets, usually at close range and with significantly subsonic velocities under 800 ft/s (244 m/s) such as are found in handgun and airgun competitions.
A wadcutter has a flat or nearly flat front, which acts to cut a very clean hole through the target, making it easier to score and ideally reducing errors in scoring to the favor of the shooter.
Occasionally, a grouping can resemble a celebrity mouse if you orient the target just right:
Very nice.
She did shoot an interesting group there. We didn’t notice it until getting ready to toss the target in the recycle bin.