1911freak,
Sights and trigger on a USP arent in the same league with a 1911, so you probably won't get the 1.5"@15yds. from this gun. I only say that because everyone I know shoots a 1911 better than most DA's to varying degrees.
I've fired or seen fired many many USP's and I cant recall a bad one to date. The 357 SIG is a pretty accurate round too. My own compact in 9mm will cut a ragged hole at 10 meters all day long, as long as I do my part.
Try shooting the gun from sandbags taking your time. Se what your results are then. It could be the gun or you at this point, at least with the info you've given so far.
I dont think your expecting too much from a USP to give you 1.5"@15yds., they are easily able to deliver that kind of accuracy.
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if it flies it dies, if it runs it's done
<font size=-1>[ This Message was edited by: Peter Zahn on 2001-11-05 20:07 ]</font>