I recently acquired a Sig Pro in .357Sig. My other Sig is a .40, so I bought an extra barrel in .40 for the Sig Pro. I finally got to shoot the Pro today. At 10 yards I couldn't shoot near as well with the .357 round as I could when I swapped over to the .40 barrel. I was extremely disappointed. I couldn't hit the upper half of the target - all 60 rounds were below the center line. Once I popped in the .40 barrel, I was all over the bullseye. Has anyone else had this happen? I would not have thought a different round would have thrown my shooting off that bad...