A couple of magnums square off today, both of which are highly suitable for an elk hunt. One cartridge is well known, and the other, not so much. The .300 Winchester Magnum doesn’t require much introduction. Since 1963 it has been shooting .30-caliber bullets far, fast, and flat, and it remains our most popular .300 magnum. The 7x61 Sharpe and Hart was developed in the 50s from a necked-down .300 H&H case. Sharpe and Hart convinced Danish gunmaker Schultz and Larsen to build rifles for it, and, for a time, Norma loaded the round. Today, if you want to shoot it, you’d have to handload.