I've had no problem with barrel bands on several rifles. All Are Uncle Mike's of Oregon. I've used them on Winchester Model 94s, Remington 760s and 7400s. I only sling a rifle to drag deer, so I cannot claim many miles of use on this device. None of the rifles had any accuracy problems or shifting points of impact after the band was installed. The bands themselves have not loosened or shifted. They must be installed as per the instructions or this movement will occur, as I've seen happen to shooters who put them on incorrectly. Uncle Mike's instructions are well illustrated and easy to follow. I must concur with the Remington forestock cap warning. I used this type of sling attachment on a 7400 for about half a year. It constantly loosened and required constant checking of the cap for proper tightness. It even loosened just from shooting. Perhaps this is why they are hard to find now.