I would like to own a SuperBigGameMaster one day, but it will be in a standard caliber. What happens if you go hunting one day with a .257 Wby. and you forget your ammo? Not every retailer carries this ammo because demand for it is low. With a .30-06, 7mm Mag, .270 Win. etc... you can pick up good ammo at almost any store. However, for the money the Vanguard is a pretty decent value.