I don't know about inaccurate. Most of them should hold less than a 2" group at 100 yards and many will shoot less than that.

However, simply by shooting them you are tearing them up. It's just the way that they are built. The 740's & 742's were real bad about this. The 7400's are much better but they still beat themselves up when the action cycles. I have seen a couple of 7400's and many more 740's and 742's that were real bad. The bolt head had beaten itself into the slide rails so badly that they looked like a serrated steak knife.