It used to be the 7 rem mag but it has evolved to the 300 win mag. It's a reloaders dream. Many have said they like the 30-06 because of it versatility, well the 300 is all that and more. I can load hot loads or mild loads, heavy bullets or light. I was suprised to find a 130 gr hot load that shot quite well. I can load 220 gr grizzly bear killers or the 168gr hornady match bullets for accuracy. This cal will be hard to beat in any circumstance.