If it shoots accurately, it should work fine. Depends on how short your SBR is. The 6.8 was designed for max efficiency in a 16" barrel, so anything less is going to take away from that. Adjust you max range accordingly and you should have no problems.Anyone shoot these out of an SBR? If so what kind of speed are you getting and have you shot any hogs with it? Thinking about buying some but can't find much about them online.