oldelkhunter-It would be nice if browning and winchester would just tell us about the new cartridges without resorting to lies and deception.I only have experience with one 300wsm a-bolt and that one shot around 1".My own custom 300ultramag averages groups half that size proving that the gun and load are far more important where accuracy is concerned than the cartridge.The owner of the 300wsm was stunned after seeing my groups as he had bought into the propaganda that the wsms were more accurate than the other magnums especially the ultramags.