The 308 is a very versatile round. With the proper load it will work on prairie dogs to big bears. The 30-06 can be loaded a little higher but requires a long action. The 308/7.62x51 was designed to replace the 30-06 with a full power round that would function better in automatic and self loaders. New rifles are available from $250 on up. New economy bolt actions are running in the $300-$400 range and are very accurate. I have a Browning BLR in 308.