Good info Lefty.... I totally agree.

The Kimber MT .270 WSM I had kind of mirrored leftycarbon's experience. The times I shot it at 1,000, I hit a 13" gong around 40%, with most misses coming horizontally. However, the same rifle would hang sub MOA at 550 yards consistently, with very acceptable vertical deviation.

I guess what it comes down to, is to explore your limits, and know your limits with every rifle you own.