I'm at a loss. I am experiencing a problem with my USP9 that I have not experienced with any other firearm to date. My signature is my current list of pistols that I own and I have no problem whatsoever as far as accuracy goes with the exception of the USP9. With having just under 1500 rounds through, I am unable to shoot it with any type of accuracy or consistency. Has anyone heard of anything like this before. I am thinking of calling H&K but somewhat embarrased. All of my pistols were purchased new since February 2007 so H&K under warranty. Any suggestions?