Wow, thanks for the heads up. I guess I assumed(should never do that) that all 3 screw actions would be the same. Now I'll have to measure mine and do some more research. I bought my F/TR 2 years ago, so I'm guessing that it would be the "original" screw spacing.... Hmmm. I love these actions but finding good stocks is a bit of a nightmare when you live in Canada. Maybe I'll just have to pony up the coin for a McMillan and be done with it.