smokepoledoug, I realize this won't answer your original question but if you have a 270 and a 30-06 you certainly won't gain,much with a 7 Rem Mag.It's pretty close to the 270 with lighter bullets and with the heavier 175's it's a bit ahead of the 30-06 but not much.I have or have had all three.With those two calibers in the rack your better off to get a 338 Win Mag.