If you guys were going Mt. Lion (Lion) hunting, what would you choose between a 7.62 x 39 123 gr. SP or a .243 100 SP? These are your only two choices. You will be hunting over an electronic call, range should be under 75 yards. We call Mt. Lions Cougars or just plain Lions. The hide will be made into a rug. FYI, the price of a tag is $16.00, and the season runs all year long.