I have been reading here for quite some time but just joined, Howdy. I was tinkering with my Encore in .270 Winchester over the weekend with some puzzling results. My gun with a factory 24" barrel will shoot close to 1 MOA with factory Winchester BST's. I read about people putting the o-rings between the screws and the barrel to "float" it. I tried it and shot a 4 shot group, the group measured 4 5/8" with noticeable vertical stringing. Took the o-rings out and fired 3 shots into 1 1/8", two of which were in the same hole. I made a small scope adjustment and fired one more shot which went exactly where I told it to. I guess mine doesn't like the o-rings, nevertheless I am happy with the accuracy the way it is. Any idea why this happened? After deer season I am going to develop a load and see what it does.