If you were to choose a barrel chambered in one of those calibers, to use mainly as a hunting rifle? Occasionally for recreational target shooting. Which one would you choose? What powder and bullet would you use for a barrel with a 1/8" twist? I have two reloading manuals and plan on purchasing the Speer reloading manual. I have no hands on experience with any of these cartridges so I am looking for tips from anyone who does. I plan on buying a Lee Deluxe rifle die set, any objections/suggestions, thanks.