I once owned one (a second year production with the smooth bolt knob) in .280rem. It shot 1 1/4" groups straight out of the box with 140gr core-lokts. I was curious what free floating would do so I slid two brass shims under the front receiver ring and turned the factory trigger down to 2 1/2lbs. It then put all three shots into 3/4" on a consistant basis as long as I didn't heat the barrel up so I left it at that. I didn't like the light weight barrel due to heating and poor weight distribution for off hand shooting, so I let it go. Man, was I stupid. Even though my taste have gone to older designs (my current pet is a 1895 Winchester lever in 30-06) I wish I had that one back.