v8r,
Try 100 yards, thy're a lot flatter than you think! Mine will shoot at about 1" at 100 yards using 250 gr Beartooth LFNGC, CCI 400, and 7.5 gr 800X in .357 Mag brass. It's only about 1200 fps, but I think it'll do whatever I call on it to do.
I don't use many factory loads, so I can't tell you what they will do.
My barrel will shoot anything from .38 Special to .360 DW in a factory chamber.