I pretty much stink at shooting my 442. Through two range trips, I've put 120 rounds through it. I guess you can say at around 5 yards I can hit center mass, but only if you count anywhere from the shoulders to the lower abdomen and anywhere in between. Usually high and low.
After my first trip, I realized it may have something to do with hand placement. I was using a auto pistol style grip last time. Today, I tried what I saw demonstrated here with Jerry Miculek:
MICULEK2
About 3/4 down the page, he shows his grip on a 642. I tried this today but got some buzz stinging on the top thumb. I'm a righty, so it was my left thumb getting zinged. Tried stabilizing with my left index on the front of the trigger guard, but that wasn't comfortable either. Regardless of what I tried, I was still off from where I was aiming.
Really, I should start shooting this gun at 3 yards before even trying at 5 yards again.