You are currently shooting a .270?? I concur with Jack O' Connor on this: there' s not enough difference between the .270 and the 7mm magnum for either you or the elk to be able to tell the difference when the bullet hits. Use a 150-grain Nosler Partiton bullet in your .270, and save your money!! I knew a doctor' s wife in Fairbanks AK who used to shoot grizzly and polar bears with her .270, and it killed them dead!!