I understand the brass availability issue, but in the age of ordering brass on line I don't think that it's as big an issues as it may have been in the past. Another point in favor of the Weatherby is while it doesn't matter when hunting in the United States, when hunting overseas, other countries customs people may want the ammunition head stamps to match the markings on the rifle barrel. No I agree that the cost issue between 7mm Weatherby brass and 300 Winchester brass is real, but considering the cost of assembling a custom chambered wildcat rifle it's a bit of a reach for my sense of logic but it is a rifle looney thing.