If you wanna tell people you shoot a 300WBY then get it. But, it won't do anything the WSM won't do, with the exception of impress you on the chrono. No elk is gonna be able to tell the difference between a 180gr bullet from a 300WSM or 300WBY. Besides, in all reality, you don't need a 300 to kill an elk anyway. All the really hard chore elk hunters I know shoot 270's, 30-06's, or 7mm's. But then again, those guys have shot more elk then most of us ever will. And I have the feeling they would have no problem killing just as many elk with a 257 wby and a 120gr partition comming out of the barrel at 3300fps.. But then again, theres no room for common sense on the Fire. You really do need the 300WBY in addition to your WSM and 257....