Finally took my new USP .45 to the range and pitted it up against my Springfield 1911 TRP.

The USP shot circles around the TRP....literally.

Using the same target and the same point of aim the TRP held a MUCH tighter group than the USP. Even from the bench the USP couldnt compete.

Any ideas what I need to look at to tighten this thing up, or should I just give it up all together and stick with the 1911???

Try an o-ring barrle,  www.ccfa.com. My Tactical holds a nice tight group. Thats about all I can suggest. I hope it helps

Compared to my 1911 the feel of the USP is completely different, I went through about 60 rnds before I started to get used to the trigger pull and a change in how I handle the USP.  Once I figured out what worked, my 1911 can't compare to the groups I was getting.  After, putting alot of lead down range I will go for the USP befor ethe 1911.  But keep in mind the 1911 has been battle tested time and time again.  

You can get a match trigger and O ring barrel. Honestly, then though you'd practically have a USP Tactical, what I think most people should get from the start if they can afford it. A USP Tactical is a closer comparison to a Springfield TRP. The TRP is NOT a stock 1911 like your USP is a stock USP. With training/practice, I KNOW you could shoot your USP extremely well.