Try searching this forum using the word 'accuracy'. Here's a couple of results.
I've got a PM9 and a MK9. Love them both. I can do a little better with the MK9, probably due to the heavier weight, but with practice they are both very accurate.
I've always enjoyed long range pistol shooting. There's a thread somewhere that I'm trying to find by a guy who post some amazing pictures of his results at 50 yards with a Kahr. I can't do nearly as well as he can, but at fifty yards if I couldn't hit someone standing still, I could sure make them duck for cover.
I've got a 55 gallon drum on my private range that I can occasionally hit at 100 yards while shooting my MK9 from a standing position, two handed hold.