Amazing.
I have trouble hitting the side of a barn with a .40 caliber H&K from 20 yards.
The barn remains unharmed, BTW.
Practice, practice, practice!
You need a bigger barn? Better chance of a score if you stand INSIDE?
I used to have a USP .40. I was sure the sights were off, but when I rested on a bench I hit .25" from dead center at 30 feet. The problem wasn't the pistol.
The grip never really felt right in my hand, so I sold it and bought a P99 in 9mm. Smaller round but I have a chance to hit my target now. Which is nice.